Best Devtools Extension Apps

250+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated August 2026

DevTools Extension is the household name in devtools extension, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Devtools Extension Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1DevTools ExtensionDevTools ExtensionFree3.5★ (17)NoNoAug 2026
2Web InspectorWeb InspectorFree3.9★ (148)NoNoAug 2026
3Debug AnywhereDebug AnywhereFree4.6★ (54)NoYesAug 2026
4View SourceView SourceFree3.4★ (59)NoNoMay 2026
5Safari SnippetsSafari SnippetsFree3.1★ (14)NoNoMay 2026
6Apple DeveloperApple DeveloperFree4.1★ (2.1K)NoYesAug 2026
7Developer-ToolsDeveloper-ToolsFreeNoNoJul 2026
8devtoolsdevtoolsFree5.0★ (1)NoNoJul 2026

Top Picks for Devtools Extension

DevTools Extension#1

DevTools Extension by 浩鑫 庄

DevTools for Safari
Editor's Choice
🛠️ Developer Tools
3.5(17 ratings)
Free
DevTools Extension screenshot 1
DevTools Extension screenshot 2
DevTools Extension screenshot 3
DevTools Extension screenshot 4
DevTools Extension screenshot 5

A browser extension for Safari that provides web developers with essential tools. It allows inspection of console logs, DOM elements, network requests, resources like localStorage and cookies, and source code.

Web Inspector#2

Web Inspector by And a Dinosaur

Developer Console for Safari
Strong Contender
🛠️ Developer Tools
3.9😐(148 ratings)
Free
#45in Developer Tools
Web Inspector screenshot 1
Web Inspector screenshot 2
Web Inspector screenshot 3
Web Inspector screenshot 4
Web Inspector screenshot 5
Web Inspector screenshot 6

This app provides a suite of web development tools for Safari on mobile devices. Inspect and edit the DOM, view element styles, execute JavaScript commands, monitor network requests, and examine stored resources like cookies.

What We Love

  • 🚀 Efficient web inspector
  • 👍 Useful debugging tools
  • 🔍 Helpful for web development
  • 💡 Brings desktop-like functionality to mobile

Room to Improve

  • 🐛 Crashes and bugs
  • 🔍 Limited functionality compared to desktop tools
  • 🔍 Inconsistent performance
Debug Anywhere#3

Debug Anywhere by 浩鑫 庄

Inspect web / DevTools
Worth Considering
🛠️ Developer Tools
4.6😊(54 ratings)
FreeIn-App Purchases
Debug Anywhere screenshot 1
Debug Anywhere screenshot 2
Debug Anywhere screenshot 3
Debug Anywhere screenshot 4
Debug Anywhere screenshot 5
Debug Anywhere screenshot 6

This app provides a comprehensive suite of tools for web developers to inspect and debug web pages within a WebView environment. It offers features like source code inspection, network diagnostics, and JavaScript injection to streamline the development process.

What We Love

  • 🚀 Useful for debugging
  • 👍 Easy to use
  • 💡 Simulates browser F12 mode
  • 👍 Great for developers

Room to Improve

  • 🐛 Cannot see initial console.log
  • 🐛 Console visible only after opening
  • 🐛 No desktop site switch

More Devtools Extension apps to explore

4
View Source
View Source
View Source
by Roman Tomjak
Free

Inspect the HTML, CSS, and JavaScript of any website directly on your device. Features syntax highlighting and search capabilities for easy code analysis. Can be used as a standalone tool or integrated with your browser.

View HTML source codeView CSS source codeView Javascript source code
🔧 Utilities
(59)
free
5
Safari Snippets
Safari Snippets
Safari Snippets
Inject code into websites.
Free

Enhance web browsing by injecting custom code into websites. Control zooming, change fonts, add sticky notes, and more. Create your own code snippets or explore a database of user-contributed enhancements.

Inject custom code into websitesControl zooming and fontsAdd sticky notes to pages
🔧 Utilities
(14)
free
6
Apple Developer
Apple Developer
Apple Developer
by Apple
Free

Access the latest developer news, features, and videos from Apple. Stay updated on new frameworks and technologies, and catch up on past event content.

Developer news and featuresLatest Apple frameworks and technologiesWWDC videos
🛠️ Developer Tools
(2.1K)
free with in-app purchases
7
Developer-Tools
Developer-Tools
Developer-Tools
All-in-one HTTP debugging tool
Free
🛠️ Developer Tools
(0)
8
devtools
devtools
devtools
web developer tools for mobile
Free

This app provides desktop-style debugging for mobile web development. Capture console logs, network requests, and JavaScript execution directly on your device. Review and analyze web activity securely offline.

Capture console logs and errorsInspect network calls (fetch/XHR)Run JavaScript
🛠️ Developer Tools
(1)
free
9
Teste - API, Scripts, Terminal
Teste - API, Scripts, Terminal
Teste - API, Scripts, Terminal
Developer Workspace
Free

Test various APIs directly from your mobile device. Supports REST, GraphQL, WebSockets, and more, with advanced editors and request customization. Share requests easily and manage cookies and history.

Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS APIsPowerful GraphQL editor with query, mutation, subscription supportWebSocket testing tool for WS and WSS connections
🛠️ Developer Tools
(554)
free
10
Web Inspector - code debugger
Web Inspector - code debugger
Web Inspector - code debugger
Mobile html javascript css xml
Free

Inspect and share HTML, CSS, and JavaScript source code from mobile web pages directly on your device. Debug web applications by viewing source code as a real mobile browser would.

Inspect HTML tagsView CSS codeExtract JavaScript
🔧 Utilities
(30)
ad-supported
11
Extension CurrentScript Test
Extension CurrentScript Test
Extension CurrentScript Test
Enterprise Guided learning App
Free
📊 Productivity
(0)
12
DevTo
DevTo
DevTo
Native application for dev.to
Free

Access articles, podcasts, and videos from dev.to in a native mobile application. This app provides a streamlined way to consume developer-focused content on the go. Contact the developer for suggestions or questions.

Access articlesListen to podcastsWatch videos
📚 Education
(1)
free
13
Spliteb for Safari
Spliteb for Safari
Spliteb for Safari
Web Inspector
Free

Inspect and edit web pages directly within your browser. Enhance your workflow with split-screen functionality on iPad, and unlock advanced features like a JavaScript console and stylesheet modification with a Pro purchase.

Inspect web pagesEdit HTML elementsJavaScript console (Pro)
🛠️ Developer Tools
(12)
freemium
14
Cookie Blocker
Cookie Blocker
Cookie Blocker
Protect your privacy
Free

Automatically hides "Accept Cookie" popups across millions of websites for a smoother browsing experience. Enjoy seamless navigation without the constant interruptions of cookie consent banners.

Hides cookie popupsWorks on 2+ million sitesSmooth browsing experience
🔧 Utilities
(100)
free
15
Extension WishMark
Extension WishMark
Extension WishMark
Browser extensions WishList
Free
📊 Productivity
(0)
16
Userscripts
Userscripts
Userscripts
User Script and Style Manager
Free

This open-source Safari extension allows you to run custom JavaScript and CSS code on any website. Enhance your browsing experience with personalized styling, automatic redirects, and ad-blocking.

Run custom JavaScriptInject custom CSSAutomatic page redirection
🛠️ Developer Tools
(181)
free
17
Right On Page Devtools
Right On Page Devtools
Right On Page Devtools
Safari Web Inspector
Free

This Safari extension brings web development tools directly to your iPhone. View console logs and API requests on the webpage, and inspect or modify CSS elements without needing a computer.

View console logs on pageSee API requests on pageInspect and change CSS
🛠️ Developer Tools
(2)
free
18
Refined GitHub
Refined GitHub
Refined GitHub
Improvements for github.com
Free

Enhance your GitHub experience with this Safari extension. It streamlines the interface and introduces over 200 features, including improved link detection, visible whitespace, and one-click tools for common tasks. Gain deeper insights into code, pull requests, and repository history.

Linkifies issue/PR references and URLsMakes whitespace characters visibleReduces tab size to 4 spaces
🛠️ Developer Tools
(81)
free
19
DevMate - Developer Toolbox
DevMate - Developer Toolbox
DevMate - Developer Toolbox
JSON, QR, Time & Debug Tools
Free
🛠️ Developer Tools
(0)
20
One Dev Tools
One Dev Tools
One Dev Tools
Format, Test, and Ship Fast
Free
$1.99 | 100% OFF
🛠️ Developer Tools
(0)

FAQ about Devtools Extension

What are the best devtools extension apps for iPhone?
DevTools Extension tops our devtools extension apps ranking as of August 2026, with a 3.5-star average from 17 App Store ratings, and it's free to download.
Yes — 20 of the top devtools extension apps we rank are free to download, including DevTools Extension and Web Inspector.
DevTools Extension has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ devtools extension apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
DevTools Extension provides a console for errors and commands, an elements inspector for DOM and styles, network monitoring, resource inspection (localStorage, cookies), and source code viewing.
DevTools Extension is supported on iPhone, iPad, and iPod touch devices.