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nghttp3

nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over QUIC and RFC 9204 QPACK in C.

It does not depend on any particular QUIC transport implementation.

Documentation

Online documentation is available.

Build from git

$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check

HTTP/3

This library implements RFC 9114 HTTP/3. It does not support server push.

The following extensions have been implemented:

It can also send and receive SETTINGS_H3_DATAGRAM from HTTP Datagrams and the Capsule Protocol.

QPACK

This library implements RFC 9204 QPACK. It supports dynamic table.

Optimizations

This library optionally uses AVX2, if available, to optimize its performance. To compile with AVX2, add -mavx2 to CFLAGS. Note that by default, CFLAGS is set to -g -O2. When specifying CFLAGS, include them as well (e.g., -g -O2 -mavx2).

Examples

License

The MIT License

Copyright (c) 2019 nghttp3 contributors

About

HTTP/3 library written in C

nghttp2.org/nghttp3/

Resources

Readme
License

Security policy

Security policy
Activity

Stars

1 star

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Packages

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
nghttp3
nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over
QUIC and RFC 9204
QPACK in C.
It does not depend on any particular QUIC transport implementation.
Documentation
Online documentation is available.
Build from git
$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check
HTTP/3
This library implements RFC 9114 HTTP/3. It does not
support server push.
The following extensions have been implemented:
It can also send and receive SETTINGS_H3_DATAGRAM from HTTP
Datagrams and the Capsule Protocol.
QPACK
This library implements RFC 9204 QPACK. It supports
dynamic table.
Optimizations
This library optionally uses AVX2, if available, to optimize its
performance. To compile with AVX2, add -mavx2 to CFLAGS. Note
that by default, CFLAGS is set to -g -O2. When specifying CFLAGS,
include them as well (e.g., -g -O2 -mavx2).
Examples
License
The MIT License
Copyright (c) 2019 nghttp3 contributors
About
HTTP/3 library written in C
nghttp2.org/nghttp3/
Resources
Readme
License
Security policy
Security policy
Activity
Stars
1 star
Watchers
1 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
nghttp3
nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over
QUIC and RFC 9204
QPACK in C.
It does not depend on any particular QUIC transport implementation.
Documentation
Online documentation is available.
Build from git
$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check
HTTP/3
This library implements RFC 9114 HTTP/3. It does not
support server push.
The following extensions have been implemented:
It can also send and receive SETTINGS_H3_DATAGRAM from HTTP
Datagrams and the Capsule Protocol.
QPACK
This library implements RFC 9204 QPACK. It supports
dynamic table.
Optimizations
This library optionally uses AVX2, if available, to optimize its
performance. To compile with AVX2, add -mavx2 to CFLAGS. Note
that by default, CFLAGS is set to -g -O2. When specifying CFLAGS,
include them as well (e.g., -g -O2 -mavx2).
Examples
License
The MIT License
Copyright (c) 2019 nghttp3 contributors
About
HTTP/3 library written in C
nghttp2.org/nghttp3/
Resources
Readme
License
Security policy
Security policy
Activity
Stars
1 star
Watchers
1 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
nghttp3
nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over
QUIC and RFC 9204
QPACK in C.
It does not depend on any particular QUIC transport implementation.
Documentation
Online documentation is available.
Build from git
$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check
HTTP/3
This library implements RFC 9114 HTTP/3. It does not
support server push.
The following extensions have been implemented:
It can also send and receive SETTINGS_H3_DATAGRAM from HTTP
Datagrams and the Capsule Protocol.
QPACK
This library implements RFC 9204 QPACK. It supports
dynamic table.
Optimizations
This library optionally uses AVX2, if available, to optimize its
performance. To compile with AVX2, add -mavx2 to CFLAGS. Note
that by default, CFLAGS is set to -g -O2. When specifying CFLAGS,
include them as well (e.g., -g -O2 -mavx2).
Examples
License
The MIT License
Copyright (c) 2019 nghttp3 contributors
About
HTTP/3 library written in C
nghttp2.org/nghttp3/
Resources
Readme
License
Security policy
Security policy
Activity
Stars
1 star
Watchers
1 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
nghttp3
nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over
QUIC and RFC 9204
QPACK in C.
It does not depend on any particular QUIC transport implementation.
Documentation
Online documentation is available.
Build from git
$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check
HTTP/3
This library implements RFC 9114 HTTP/3. It does not
support server push.
The following extensions have been implemented:
It can also send and receive SETTINGS_H3_DATAGRAM from HTTP
Datagrams and the Capsule Protocol.
QPACK
This library implements RFC 9204 QPACK. It supports
dynamic table.
Optimizations
This library optionally uses AVX2, if available, to optimize its
performance. To compile with AVX2, add -mavx2 to CFLAGS. Note
that by default, CFLAGS is set to -g -O2. When specifying CFLAGS,
include them as well (e.g., -g -O2 -mavx2).
Examples
License
The MIT License
Copyright (c) 2019 nghttp3 contributors
About
HTTP/3 library written in C
nghttp2.org/nghttp3/
Resources
Readme
License
Security policy
Security policy
Activity
Stars
1 star
Watchers
1 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
nghttp3
nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over
QUIC and RFC 9204
QPACK in C.
It does not depend on any particular QUIC transport implementation.
Documentation
Online documentation is available.
Build from git
$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check
HTTP/3
This library implements RFC 9114 HTTP/3. It does not
support server push.
The following extensions have been implemented:
It can also send and receive SETTINGS_H3_DATAGRAM from HTTP
Datagrams and the Capsule Protocol.
QPACK
This library implements RFC 9204 QPACK. It supports
dynamic table.
Optimizations
This library optionally uses AVX2, if available, to optimize its
performance. To compile with AVX2, add -mavx2 to CFLAGS. Note
that by default, CFLAGS is set to -g -O2. When specifying CFLAGS,
include them as well (e.g., -g -O2 -mavx2).
Examples
License
The MIT License
Copyright (c) 2019 nghttp3 contributors
About
HTTP/3 library written in C
nghttp2.org/nghttp3/
Resources
Readme
License
Security policy
Security policy
Activity
Stars
1 star
Watchers
1 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
nghttp3
nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over
QUIC and RFC 9204
QPACK in C.
It does not depend on any particular QUIC transport implementation.
Documentation
Online documentation is available.
Build from git
$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check
HTTP/3
This library implements RFC 9114 HTTP/3. It does not
support server push.
The following extensions have been implemented:
It can also send and receive SETTINGS_H3_DATAGRAM from HTTP
Datagrams and the Capsule Protocol.
QPACK
This library implements RFC 9204 QPACK. It supports
dynamic table.
Optimizations
This library optionally uses AVX2, if available, to optimize its
performance. To compile with AVX2, add -mavx2 to CFLAGS. Note
that by default, CFLAGS is set to -g -O2. When specifying CFLAGS,
include them as well (e.g., -g -O2 -mavx2).
Examples
License
The MIT License
Copyright (c) 2019 nghttp3 contributors
About
HTTP/3 library written in C
nghttp2.org/nghttp3/
Resources
Readme
License
Security policy
Security policy
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, '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
nghttp3
nghttp3 is an implementation of RFC 9114 HTTP/3 mapping over
QUIC and RFC 9204
QPACK in C.
It does not depend on any particular QUIC transport implementation.
Documentation
Online documentation is available.
Build from git
$ git clone https://github.com/ngtcp2/nghttp3
$ cd nghttp3
$ git submodule update --init
$ autoreconf -i
$ ./configure
$ make -j$(nproc) check
HTTP/3
This library implements RFC 9114 HTTP/3. It does not
support server push.
The following extensions have been implemented:
It can also send and receive SETTINGS_H3_DATAGRAM from HTTP
Datagrams and the Capsule Protocol.
QPACK
This library implements RFC 9204 QPACK. It supports
dynamic table.
Optimizations
This library optionally uses AVX2, if available, to optimize its
performance. To compile with AVX2, add -mavx2 to CFLAGS. Note
that by default, CFLAGS is set to -g -O2. When specifying CFLAGS,
include them as well (e.g., -g -O2 -mavx2).
Examples
License
The MIT License
Copyright (c) 2019 nghttp3 contributors
About
HTTP/3 library written in C
nghttp2.org/nghttp3/
Resources
Readme
License
Security policy
Security policy
Activity
Stars
1 star
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages