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React Hook Form Logo - React hook custom hook for form validation

Performant, flexible and extensible forms with easy to use validation.

npm downloadsnpmnpm

Goal

This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.

Install

$ npm install @hookform/devtools -D

Quickstart

importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;

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Thanks goes to all our backers! [Become a backer].

Organizations

Thanks goes to these wonderful organizations! [Contribute].

Contributors

Thanks goes to these wonderful people! [Become a contributor].

About

📋 DevTools to help debug forms.

react-hook-form.com/dev-tools

Resources

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, '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" + '

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React Hook Form Logo - React hook custom hook for form validation
Performant, flexible and extensible forms with easy to use validation.
npm downloadsnpmnpm
Goal
This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.
Install
$ npm install @hookform/devtools -D

Quickstart
importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;
Backers
Thanks goes to all our backers! [Become a backer].
Organizations
Thanks goes to these wonderful organizations! [Contribute].
Contributors
Thanks goes to these wonderful people! [Become a contributor].
About
📋 DevTools to help debug forms.
react-hook-form.com/dev-tools
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, '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('^' + ".*" + '

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React Hook Form Logo - React hook custom hook for form validation
Performant, flexible and extensible forms with easy to use validation.
npm downloadsnpmnpm
Goal
This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.
Install
$ npm install @hookform/devtools -D

Quickstart
importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;
Backers
Thanks goes to all our backers! [Become a backer].
Organizations
Thanks goes to these wonderful organizations! [Contribute].
Contributors
Thanks goes to these wonderful people! [Become a contributor].
About
📋 DevTools to help debug forms.
react-hook-form.com/dev-tools
Resources
Readme
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0 watching
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, '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('^' + ".*" + '

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React Hook Form Logo - React hook custom hook for form validation
Performant, flexible and extensible forms with easy to use validation.
npm downloadsnpmnpm
Goal
This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.
Install
$ npm install @hookform/devtools -D

Quickstart
importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;
Backers
Thanks goes to all our backers! [Become a backer].
Organizations
Thanks goes to these wonderful organizations! [Contribute].
Contributors
Thanks goes to these wonderful people! [Become a contributor].
About
📋 DevTools to help debug forms.
react-hook-form.com/dev-tools
Resources
Readme
License
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0 watching
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, '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" + '

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React Hook Form Logo - React hook custom hook for form validation
Performant, flexible and extensible forms with easy to use validation.
npm downloadsnpmnpm
Goal
This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.
Install
$ npm install @hookform/devtools -D

Quickstart
importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;
Backers
Thanks goes to all our backers! [Become a backer].
Organizations
Thanks goes to these wonderful organizations! [Contribute].
Contributors
Thanks goes to these wonderful people! [Become a contributor].
About
📋 DevTools to help debug forms.
react-hook-form.com/dev-tools
Resources
Readme
License
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0 watching
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, '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('^' + ".*" + '

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React Hook Form Logo - React hook custom hook for form validation
Performant, flexible and extensible forms with easy to use validation.
npm downloadsnpmnpm
Goal
This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.
Install
$ npm install @hookform/devtools -D

Quickstart
importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;
Backers
Thanks goes to all our backers! [Become a backer].
Organizations
Thanks goes to these wonderful organizations! [Contribute].
Contributors
Thanks goes to these wonderful people! [Become a contributor].
About
📋 DevTools to help debug forms.
react-hook-form.com/dev-tools
Resources
Readme
License
Activity
Stars
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0 watching
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, '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('^' + ".*" + '

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React Hook Form Logo - React hook custom hook for form validation
Performant, flexible and extensible forms with easy to use validation.
npm downloadsnpmnpm
Goal
This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.
Install
$ npm install @hookform/devtools -D

Quickstart
importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;
Backers
Thanks goes to all our backers! [Become a backer].
Organizations
Thanks goes to these wonderful organizations! [Contribute].
Contributors
Thanks goes to these wonderful people! [Become a contributor].
About
📋 DevTools to help debug forms.
react-hook-form.com/dev-tools
Resources
Readme
License
Activity
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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); }
})();
})();

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React Hook Form Logo - React hook custom hook for form validation
Performant, flexible and extensible forms with easy to use validation.
npm downloadsnpmnpm
Goal
This React Component will help you to debug forms when working React Hook Form, and give you more insight about your form's detail.
Install
$ npm install @hookform/devtools -D

Quickstart
importReactfrom'react';import{useForm}from'react-hook-form';import{DevTool}from'@hookform/devtools';import'./App.css';constApp=()=>{const{ register, control, handleSubmit }=useForm({mode: 'onChange',});return(<><DevToolcontrol={control}placement="top-left"/><formonSubmit={handleSubmit((d)=>console.log(d))}><h1>ReactHookFormDevTools</h1><label>Test</label><inputname="test"ref={register}/><inputtype="submit"/></form></>);};exportdefaultApp;
Backers
Thanks goes to all our backers! [Become a backer].
Organizations
Thanks goes to these wonderful organizations! [Contribute].
Contributors
Thanks goes to these wonderful people! [Become a contributor].
About
📋 DevTools to help debug forms.
react-hook-form.com/dev-tools
Resources
Readme
License
Activity
Stars
0 stars
Watchers
0 watching
Forks
0 forks
Report repository
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