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Learn LangChain

Overview, Tutorial, and Examples of LangChain

See the accompanying tutorials on YouTube

If you want to get updated when new tutorials are out, get them delivered to your inbox

If you're new to Jupyter Notebooks or Colab, check out this video

New To LangChain?

Recommended Learning Path:

  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives

Prompt Engineering (my favorite resources):

  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide

🤖 Project Gallery

🐇 Beginner = Entry level projects to practice LangChain

🐒 Intermediate = In depth use of LangChain

🦈 Advanced = Advanced or custom implementations of LangChain

📝 Summarization - Deep Dive: Code, Video

ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents

ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction

ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation

ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data

ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding

ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs

ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots

ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents

ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord

👽 Other 👽

ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.

💁 Contributing

As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.

Submit a PR with notes.

This repo and series is provided by DataIndependent and run by Greg Kamradt

About

Overview and tutorial of the LangChain Library

Resources

Readme
Activity

Stars

1 star

Watchers

0 watching

Forks

0 forks
Report repository

Releases

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Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Learn LangChain
Overview, Tutorial, and Examples of LangChain
See the accompanying tutorials on YouTube
If you want to get updated when new tutorials are out, get them delivered to your inbox
If you're new to Jupyter Notebooks or Colab, check out this video
New To LangChain?
Recommended Learning Path:
  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives
Prompt Engineering (my favorite resources):
  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide
🤖 Project Gallery
🐇 Beginner = Entry level projects to practice LangChain
🐒 Intermediate = In depth use of LangChain
🦈 Advanced = Advanced or custom implementations of LangChain
📝 Summarization - Deep Dive: Code, Video
ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents
ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction
ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation
ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data
ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding
ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs
ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots
ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents
ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord
👽 Other 👽
ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.
Submit a PR with notes.
This repo and series is provided by DataIndependent and run by Greg Kamradt
About
Overview and tutorial of the LangChain Library
Resources
Readme
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Learn LangChain
Overview, Tutorial, and Examples of LangChain
See the accompanying tutorials on YouTube
If you want to get updated when new tutorials are out, get them delivered to your inbox
If you're new to Jupyter Notebooks or Colab, check out this video
New To LangChain?
Recommended Learning Path:
  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives
Prompt Engineering (my favorite resources):
  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide
🤖 Project Gallery
🐇 Beginner = Entry level projects to practice LangChain
🐒 Intermediate = In depth use of LangChain
🦈 Advanced = Advanced or custom implementations of LangChain
📝 Summarization - Deep Dive: Code, Video
ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents
ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction
ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation
ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data
ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding
ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs
ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots
ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents
ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord
👽 Other 👽
ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.
Submit a PR with notes.
This repo and series is provided by DataIndependent and run by Greg Kamradt
About
Overview and tutorial of the LangChain Library
Resources
Readme
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Learn LangChain
Overview, Tutorial, and Examples of LangChain
See the accompanying tutorials on YouTube
If you want to get updated when new tutorials are out, get them delivered to your inbox
If you're new to Jupyter Notebooks or Colab, check out this video
New To LangChain?
Recommended Learning Path:
  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives
Prompt Engineering (my favorite resources):
  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide
🤖 Project Gallery
🐇 Beginner = Entry level projects to practice LangChain
🐒 Intermediate = In depth use of LangChain
🦈 Advanced = Advanced or custom implementations of LangChain
📝 Summarization - Deep Dive: Code, Video
ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents
ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction
ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation
ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data
ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding
ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs
ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots
ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents
ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord
👽 Other 👽
ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.
Submit a PR with notes.
This repo and series is provided by DataIndependent and run by Greg Kamradt
About
Overview and tutorial of the LangChain Library
Resources
Readme
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
Learn LangChain
Overview, Tutorial, and Examples of LangChain
See the accompanying tutorials on YouTube
If you want to get updated when new tutorials are out, get them delivered to your inbox
If you're new to Jupyter Notebooks or Colab, check out this video
New To LangChain?
Recommended Learning Path:
  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives
Prompt Engineering (my favorite resources):
  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide
🤖 Project Gallery
🐇 Beginner = Entry level projects to practice LangChain
🐒 Intermediate = In depth use of LangChain
🦈 Advanced = Advanced or custom implementations of LangChain
📝 Summarization - Deep Dive: Code, Video
ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents
ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction
ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation
ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data
ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding
ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs
ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots
ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents
ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord
👽 Other 👽
ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.
Submit a PR with notes.
This repo and series is provided by DataIndependent and run by Greg Kamradt
About
Overview and tutorial of the LangChain Library
Resources
Readme
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Learn LangChain
Overview, Tutorial, and Examples of LangChain
See the accompanying tutorials on YouTube
If you want to get updated when new tutorials are out, get them delivered to your inbox
If you're new to Jupyter Notebooks or Colab, check out this video
New To LangChain?
Recommended Learning Path:
  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives
Prompt Engineering (my favorite resources):
  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide
🤖 Project Gallery
🐇 Beginner = Entry level projects to practice LangChain
🐒 Intermediate = In depth use of LangChain
🦈 Advanced = Advanced or custom implementations of LangChain
📝 Summarization - Deep Dive: Code, Video
ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents
ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction
ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation
ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data
ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding
ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs
ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots
ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents
ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord
👽 Other 👽
ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.
Submit a PR with notes.
This repo and series is provided by DataIndependent and run by Greg Kamradt
About
Overview and tutorial of the LangChain Library
Resources
Readme
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
Learn LangChain
Overview, Tutorial, and Examples of LangChain
See the accompanying tutorials on YouTube
If you want to get updated when new tutorials are out, get them delivered to your inbox
If you're new to Jupyter Notebooks or Colab, check out this video
New To LangChain?
Recommended Learning Path:
  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives
Prompt Engineering (my favorite resources):
  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide
🤖 Project Gallery
🐇 Beginner = Entry level projects to practice LangChain
🐒 Intermediate = In depth use of LangChain
🦈 Advanced = Advanced or custom implementations of LangChain
📝 Summarization - Deep Dive: Code, Video
ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents
ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction
ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation
ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data
ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding
ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs
ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots
ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents
ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord
👽 Other 👽
ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.
Submit a PR with notes.
This repo and series is provided by DataIndependent and run by Greg Kamradt
About
Overview and tutorial of the LangChain Library
Resources
Readme
Activity
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1 star
Watchers
0 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
BranchesTags
Repository files navigation
Learn LangChain
Overview, Tutorial, and Examples of LangChain
See the accompanying tutorials on YouTube
If you want to get updated when new tutorials are out, get them delivered to your inbox
If you're new to Jupyter Notebooks or Colab, check out this video
New To LangChain?
Recommended Learning Path:
  1. LangChain CookBook Part 1: 7 Core Concepts - Code, Video
  2. LangChain CookBook Part 2: 9 Use Cases - Code, Video
  3. Explore the projects below and jump into the deep dives
Prompt Engineering (my favorite resources):
  1. Prompt Engineering Overview by Elvis Saravia
  2. ChatGPT Prompt Engineering for Developers - Prompt engineering basics straight from OpenAI
  3. Brex's Prompt Engineering Guide
🤖 Project Gallery
🐇 Beginner = Entry level projects to practice LangChain
🐒 Intermediate = In depth use of LangChain
🦈 Advanced = Advanced or custom implementations of LangChain
📝 Summarization - Deep Dive: Code, Video
ProjectContactDifficultyOpen Sourced?Notes
SummarizePaper.comQuentin Kral🐒 Intermediate✅ CodeSummarize arXiv papers

❓ Question and Answering Over Documents
ProjectContactDifficultyOpen Sourced?Notes
ChatPDFAshish Talati🐒 Intermediate✅ CodeChat and Ask on your own data

📦 Extraction
ProjectContactDifficultyOpen Sourced?Notes
KorEugene Yurtsev🐒 Intermediate✅ CodeThis is a half-baked prototype that “helps” you extract structured data from text using large language models (LLMs) 🧩.
OpeningAttributes@gregkamradt🐇 Beginner✅ CodeExtract technologies & tools from job descriptions

🔍 Evaluation
ProjectContactDifficultyOpen Sourced?Notes
Auto-Evaluator@RLanceMartin🦈 Advanced✅ CodeEvaluate Q&A Chains

📊 Querying Tabular Data
ProjectContactDifficultyOpen Sourced?Notes
TBD

💻 Code Understanding
ProjectContactDifficultyOpen Sourced?Notes
TBD

🌐 Interacting with APIs
ProjectContactDifficultyOpen Sourced?Notes
TBD

💬 Chatbots
ProjectContactDifficultyOpen Sourced?Notes
LangChain ChatBotDavid Peterson🐒 Intermediate✅ CodeInput your PDF documents and analyze, ask questions, or do calculations on the data.

🤖 Agents
ProjectContactDifficultyOpen Sourced?Notes
Agents Via Vocode@vocode🐒 Intermediate✅ CodeAgents making phone calls to order pizza
NexusGPT@achammah1🐒 IntermediateAI Freelancer Platform. Discord
👽 Other 👽
ProjectContactDifficultyOpen Sourced?Notes
Slack-GPT@martinseanhunt🐒 Intermediate✅ CodeA simple starter for a Slack app / chatbot that uses the Bolt.js Slack app framework, Langchain, openAI and a Pinecone vectorstore to provide LLM generated answers to user questions based on a custom data set.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of updating code, better documentation, or project to feature.
Submit a PR with notes.
This repo and series is provided by DataIndependent and run by Greg Kamradt
About
Overview and tutorial of the LangChain Library
Resources
Readme
Activity
Stars
1 star
Watchers
0 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages