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[Framework](/categories/framework) 4. / 5. yiisoft/yii2-debug ActiveYii2-extension[Framework](/categories/framework) yiisoft/yii2-debug ================== The debugger extension for the Yii framework 2.1.28(2mo ago)21624.5M↓28.9%147[40 issues](https://github.com/yiisoft/yii2-debug/issues)[5 PRs](https://github.com/yiisoft/yii2-debug/pulls)20BSD-3-ClausePHPPHP >=7.4CI passing Since Nov 30Pushed 1w ago27 watchersCompare [ Source](https://github.com/yiisoft/yii2-debug)[ Packagist](https://packagist.org/packages/yiisoft/yii2-debug)[ GitHub Sponsors](https://github.com/yiisoft)[ Fund](https://opencollective.com/yiisoft)[ RSS](/packages/yiisoft-yii2-debug/feed)WikiDiscussions master Synced 2d ago READMEChangelog (1)Dependencies (11)Versions (52)Used By (20) ![Yii Framework](https://camo.githubusercontent.com/cc75562bca6e54e98046e4fb187ef8d96c997a8f31c6f4d2f6ed0c816413b47a/68747470733a2f2f7777772e7969696672616d65776f726b2e636f6d2f696d6167652f7969695f6c6f676f5f6c696768742e737667) Debug Extension for Yii 2 ========================= [](#debug-extension-for-yii-2) This extension provides a debugger for [Yii framework 2.0](https://www.yiiframework.com) applications. When this extension is used, a debugger toolbar will appear at the bottom of every page. The extension also provides a set of standalone pages to display more detailed debug information. [![Latest Stable Version](https://camo.githubusercontent.com/d5be8c3b158e2cdc61e640bb7674a4c0d329f442db0bec3385f6d3670d2753b6/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f796969736f66742f796969322d64656275672e7376673f7374796c653d666f722d7468652d6261646765266c6162656c3d537461626c65266c6f676f3d7061636b6167697374)](https://packagist.org/packages/yiisoft/yii2-debug)[![Total Downloads](https://camo.githubusercontent.com/1c07c7bc044b0a09574f913d265d0b2a4e8c4e722a07d921f5a9e7d529636bdb/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f64742f796969736f66742f796969322d64656275672e7376673f7374796c653d666f722d7468652d6261646765266c6162656c3d446f776e6c6f616473)](https://packagist.org/packages/yiisoft/yii2-debug)[![build](https://camo.githubusercontent.com/af010de1adc812b509f4e4a5cd71437bd0e68da770f79d8bfbb75be779c6b7d6/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f616374696f6e732f776f726b666c6f772f7374617475732f796969736f66742f796969322d64656275672f6275696c642e796d6c3f7374796c653d666f722d7468652d6261646765266c6f676f3d676974687562266c6162656c3d4275696c64)](https://github.com/yiisoft/yii2-debug/actions?query=workflow%3Abuild)[![codecov](https://camo.githubusercontent.com/1850933168e6554c3dda2812e9a5078b0900bf36df1a0258a0d1aa0e8a42483e/68747470733a2f2f696d672e736869656c64732e696f2f636f6465636f762f632f6769746875622f796969736f66742f796969322d64656275672e7376673f7374796c653d666f722d7468652d6261646765266c6f676f3d636f6465636f76266c6f676f436f6c6f723d7768697465266c6162656c3d436f6465636f76)](https://codecov.io/gh/yiisoft/yii2-debug)[![Static Analysis](https://camo.githubusercontent.com/102b269c725cf3acfaed54f375dbcc9f35ff95ded5addbf2324d634e0f185cfb/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f616374696f6e732f776f726b666c6f772f7374617475732f796969736f66742f796969322d64656275672f7374617469632e796d6c3f7374796c653d666f722d7468652d6261646765266c6162656c3d537461746963)](https://github.com/yiisoft/yii2-debug/actions/workflows/static.yml) Installation ------------ [](#installation) Important - The minimum required [PHP](https://www.php.net/) version is PHP `7.4`. - It works best with PHP `8`. The preferred way to install this extension is through [composer](https://getcomposer.org/download/). Either run ``` php composer.phar require --prefer-dist yiisoft/yii2-debug ``` or add ``` "yiisoft/yii2-debug": "~2.1.0" ``` to the require section of your `composer.json` file. Usage ----- [](#usage) Once the extension is installed, simply modify your application configuration as follows: ``` return [ 'bootstrap' => ['debug'], 'modules' => [ 'debug' => [ 'class' => 'yii\debug\Module', // uncomment and adjust the following to add your IP if you are not connecting from localhost. //'allowedIPs' => ['127.0.0.1', '::1'], ], // ... ], ... ]; ``` You will see a debugger toolbar showing at the bottom of every page of your application. You can click on the toolbar to see more detailed debug information. Open Files in IDE ----------------- [](#open-files-in-ide) You can create a link to open files in your favorite IDE with this configuration: ``` return [ 'bootstrap' => ['debug'], 'modules' => [ 'debug' => [ 'class' => 'yii\debug\Module', 'traceLine' => '{file}:{line}', // uncomment and adjust the following to add your IP if you are not connecting from localhost. //'allowedIPs' => ['127.0.0.1', '::1'], ], // ... ], ... ]; ``` You must make some changes to your OS. See these examples: - PHPStorm: - Sublime Text 3 on Windows or Linux: - Sublime Text 3 on Mac: [https://github.com/inopinatus/sublime\_url](https://github.com/inopinatus/sublime_url) #### Virtualized or dockerized [](#virtualized-or-dockerized) If your application is run under a virtualized or dockerized environment, it is often the case that the application's base path is different inside of the virtual machine or container than on your host machine. For the links work in those situations, you can configure `tracePathMappings` like this (change the path to your app): ``` 'tracePathMappings' => [ '/app' => '/path/to/your/app', ], ``` Or you can create a callback for `traceLine` for even more control: ``` 'traceLine' => function($options, $panel) { $filePath = $options['file']; if (StringHelper::startsWith($filePath, Yii::$app->basePath)) { $filePath = '/path/to/your/app' . substr($filePath, strlen(Yii::$app->basePath)); } return strtr('{text}', ['{file}' => $filePath]); }, ``` Documentation ------------- [](#documentation) - [the guide](docs/guide/README.md) Support the project ------------------- [](#support-the-project) [![Open Collective](https://camo.githubusercontent.com/ad8d82ae4dbf7869403317d29b3ab412509ad638d6b58d8855ec18853b5ab5ba/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4f70656e253230436f6c6c6563746976652d73706f6e736f722d3765616466313f7374796c653d666f722d7468652d6261646765266c6f676f3d6f70656e253230636f6c6c656374697665266c6f676f436f6c6f723d376561646631266c6162656c436f6c6f723d353535353535)](https://opencollective.com/yiisoft) Follow updates -------------- [](#follow-updates) [![Official website](https://camo.githubusercontent.com/289983c1dde520aac09b2e2c1456588e33a6551e5353146255ef287aef12483e/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f506f77657265645f62792d5969695f4672616d65776f726b2d677265656e2e7376673f7374796c653d666f722d7468652d6261646765266c6f676f3d796969)](https://www.yiiframework.com/)[![Follow on X](https://camo.githubusercontent.com/332c1b1e043dfb940b95825f7863dc473f6924ddacdd6738cbbbba08f49e1862/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f2d466f6c6c6f772532306f6e253230582d3144413146322e7376673f7374796c653d666f722d7468652d6261646765266c6f676f3d78266c6f676f436f6c6f723d7768697465266c6162656c436f6c6f723d303030303030)](https://x.com/yiiframework)[![Telegram](https://camo.githubusercontent.com/011b161ebda90a674c45717c4bf9147979afb1ec6900246ef70ed6ba2bfc55b7/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f74656c656772616d2d6a6f696e2d3144413146323f7374796c653d666f722d7468652d6261646765266c6f676f3d74656c656772616d)](https://t.me/yii_framework_in_english)[![Slack](https://camo.githubusercontent.com/73a139b0b78939a369c6b99ada6184607d59e6d0c0c216d44c4012a1b3cd06ee/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f736c61636b2d6a6f696e2d3144413146323f7374796c653d666f722d7468652d6261646765266c6f676f3d736c61636b)](https://yiiframework.com/go/slack) License ------- [](#license) [![License](https://camo.githubusercontent.com/680c8d62ba2d5a71d7099b6e81114fb0b22d99086c121fd178e1149afc669d44/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f4c6963656e73652d4253442d2d332d2d436c617573652d627269676874677265656e2e7376673f7374796c653d666f722d7468652d6261646765266c6f676f3d6f70656e736f75726365696e6974696174697665266c6f676f436f6c6f723d7768697465266c6162656c436f6c6f723d353535353535)](LICENSE.md) ### Health Score 74 — ExcellentBetter than 100% of packages Maintenance89 Actively maintained with recent releases Popularity68 Solid adoption and visibility Community58 Growing community involvement Maturity76 Established project with proven stability Bus Factor2 2 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~96 days Recently: every ~235 days Total 48 Last Release 70d ago Major Versions 2.1.28 → 22.x-dev2026-04-24 PHP version history (3 changes)2.1.0PHP >=5.4 2.1.28PHP >=7.4 22.x-devPHP >=8.3 ### Community Maintainers ![](https://www.gravatar.com/avatar/261a6249c6f605f3956a2fae40fbb813f6b2e1e6f2bf806180c851a965426e54?d=identicon)[cebe](/maintainers/cebe) ![](https://www.gravatar.com/avatar/fc29e4e7068a00fe9b9db37b8aadda1db6020adcacef810461e47b99c2b150e6?d=identicon)[samdark](/maintainers/samdark) ![](https://www.gravatar.com/avatar/23416c58e0dce33a8369451a4ca0e28666373594027debc10184b37ade6a926b?d=identicon)[qiangxue](/maintainers/qiangxue) --- Top Contributors [![qiangxue](https://avatars.githubusercontent.com/u/993322?v=4)](https://github.com/qiangxue "qiangxue (1943 commits)")[![samdark](https://avatars.githubusercontent.com/u/47294?v=4)](https://github.com/samdark "samdark (800 commits)")[![cebe](https://avatars.githubusercontent.com/u/189796?v=4)](https://github.com/cebe "cebe (782 commits)")[![klimov-paul](https://avatars.githubusercontent.com/u/1482054?v=4)](https://github.com/klimov-paul "klimov-paul (337 commits)")[![creocoder](https://avatars.githubusercontent.com/u/896494?v=4)](https://github.com/creocoder "creocoder (148 commits)")[![resurtm](https://avatars.githubusercontent.com/u/100198?v=4)](https://github.com/resurtm "resurtm (124 commits)")[![tonydspaniard](https://avatars.githubusercontent.com/u/566016?v=4)](https://github.com/tonydspaniard "tonydspaniard (95 commits)")[![Ragazzo](https://avatars.githubusercontent.com/u/1748844?v=4)](https://github.com/Ragazzo "Ragazzo (87 commits)")[![schmunk42](https://avatars.githubusercontent.com/u/649031?v=4)](https://github.com/schmunk42 "schmunk42 (49 commits)")[![lucianobaraglia](https://avatars.githubusercontent.com/u/374554?v=4)](https://github.com/lucianobaraglia "lucianobaraglia (45 commits)")[![suralc](https://avatars.githubusercontent.com/u/730039?v=4)](https://github.com/suralc "suralc (42 commits)")[![pmoust](https://avatars.githubusercontent.com/u/2493339?v=4)](https://github.com/pmoust "pmoust (36 commits)")[![slavcodev](https://avatars.githubusercontent.com/u/757721?v=4)](https://github.com/slavcodev "slavcodev (20 commits)")[![LarryUllman](https://avatars.githubusercontent.com/u/1674823?v=4)](https://github.com/LarryUllman "LarryUllman (18 commits)")[![machour](https://avatars.githubusercontent.com/u/304450?v=4)](https://github.com/machour "machour (18 commits)")[![kartik-v](https://avatars.githubusercontent.com/u/3592619?v=4)](https://github.com/kartik-v "kartik-v (16 commits)")[![pana1990](https://avatars.githubusercontent.com/u/6630197?v=4)](https://github.com/pana1990 "pana1990 (13 commits)")[![crtlib](https://avatars.githubusercontent.com/u/4428231?v=4)](https://github.com/crtlib "crtlib (12 commits)")[![bwoester](https://avatars.githubusercontent.com/u/309565?v=4)](https://github.com/bwoester "bwoester (12 commits)")[![tarasio](https://avatars.githubusercontent.com/u/1010578?v=4)](https://github.com/tarasio "tarasio (12 commits)") --- Tags debuggerdebugger-toolbarhacktoberfestloggingprofileryiiyii2devdebugdebuggeryii2 ### Code Quality TestsPHPUnit Static AnalysisPHPStan Type Coverage Yes ### Embed Badge ![Health badge](/badges/yiisoft-yii2-debug/health.svg) ``` [![Health](https://phpackages.com/badges/yiisoft-yii2-debug/health.svg)](https://phpackages.com/packages/yiisoft-yii2-debug) ``` ### Alternatives [craftcms/cms Craft CMS 3.6k3.6M3.1k](/packages/craftcms-cms)[cakephp/debug_kit CakePHP Debug Kit 86314.7M171](/packages/cakephp-debug-kit)[yiisoft/yii2-gii The Gii extension for the Yii framework 21119.1M625](/packages/yiisoft-yii2-gii)[yiisoft/yii2-redis Redis Cache, Session and ActiveRecord for the Yii framework 47912.3M278](/packages/yiisoft-yii2-redis)[yiisoft/yii2-app-advanced Yii 2 Advanced Project Template 1.7k961.7k5](/packages/yiisoft-yii2-app-advanced)[yiisoft/yii2-app-basic Yii 2 Basic Project Template 7101.8M8](/packages/yiisoft-yii2-app-basic) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)