1. React Developer Tools
Inspect React component trees, props and state.
Why it replaces DevTools Pro - Developer Toolbox: Covers similar ground in the Developer Tools category: Inspect React component trees, props and state.
Best DevTools Pro - Developer Toolbox Alternatives in 2026
DevTools Pro - Developer Toolbox is a strong option, but it is not the right fit for everyone. Below are 10 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About DevTools Pro - Developer Toolbox
DevTools Pro: JSON formatter, Base64/URL encoder, timestamp converter, JWT decoder, regex tester. Free & offline.
Free
Full reviewComparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| DevTools Pro - Developer Toolbox (original) | — | — | Free | DevTools Pro: JSON formatter, Base64/URL encoder, timestamp converter, JWT decoder, regex tester. Free & offline. |
| React Developer Tools | 3.9 | 5M+ | Free | React developers debugging component state and render performance. |
| Wappalyzer | 4.6 | 3M+ | Freemium | Developers, agencies and sales teams researching what a site is built with. |
| JSON Formatter | 4.3 | 2M+ | Free | Anyone poking at REST APIs directly in the browser. |
| Web Developer | 4.5 | 1M+ | Free | Web developers who want quick access to common debugging tools without opening DevTools. |
| Redux DevTools | 4.6 | 1M+ | Free | Redux DevTools for debugging application's state changes. |
| Vue.js devtools | 4.1 | 1M+ | Free | DevTools browser extension for Vue.js |
| Tag Assistant | 3.9 | 3M+ | Free | The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager. |
| Take Webpage Screenshots Entirely - FireShot | 4.8 | 3M+ | Free | Anyone who needs fast, reliable full-page screenshots for work, support or documentation. |
| Meta Ads Data Advisor | 3.9 | 3M+ | Free | Meta Ads Data Advisor automates connecting your website and marketing data to Meta for better ad performance. No developers needed. |
| Cookie-Editor | 4.4 | 2M+ | Free | Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab. |
DevTools Pro - Developer Toolbox alternatives in detail
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2. Wappalyzer
Identifies the technology stack behind any website.
Why it replaces DevTools Pro - Developer Toolbox: Covers similar ground in the Developer Tools category: Identifies the technology stack behind any website.
3. JSON Formatter
Makes raw JSON responses readable in the browser.
Why it replaces DevTools Pro - Developer Toolbox: Covers similar ground in the Developer Tools category: Makes raw JSON responses readable in the browser.
4. Web Developer
Adds a toolbar button with various web developer tools.
Why it replaces DevTools Pro - Developer Toolbox: Covers similar ground in the Developer Tools category: Adds a toolbar button with various web developer tools.
5. Redux DevTools
Redux DevTools for debugging application's state changes.
Why it replaces DevTools Pro - Developer Toolbox: Covers similar ground in the Developer Tools category: Redux DevTools for debugging application's state changes.
6. Vue.js devtools
DevTools browser extension for Vue.js
Why it replaces DevTools Pro - Developer Toolbox: Covers similar ground in the Developer Tools category: DevTools browser extension for Vue.js
7. Tag Assistant
The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
Why it replaces DevTools Pro - Developer Toolbox: Another popular Developer Tools extension: The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
8. Take Webpage Screenshots Entirely - FireShot
Take FULL webpage screenshots. Capture, edit and save them to PDF/JPEG/GIF/PNG, upload, print, send to OneNote, clipboard or email.
Why it replaces DevTools Pro - Developer Toolbox: Another popular Developer Tools extension: Take FULL webpage screenshots. Capture, edit and save them to PDF/JPEG/GIF/PNG, upload, print, send to OneNote, clipboard or email.
9. Meta Ads Data Advisor
Meta Ads Data Advisor automates connecting your website and marketing data to Meta for better ad performance. No developers needed.
Why it replaces DevTools Pro - Developer Toolbox: Another popular Developer Tools extension: Meta Ads Data Advisor automates connecting your website and marketing data to Meta for better ad performance. No developers needed.
10. Cookie-Editor
Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
Why it replaces DevTools Pro - Developer Toolbox: Another popular Developer Tools extension: Simple yet powerful Cookie Editor that allow you to quickly create, edit and delete cookies without leaving your tab.
Compare DevTools Pro - Developer Toolbox head-to-head
Direct comparisons with the extensions people weigh against it.
Wappalyzer vs JSON FormatterStack detection for recon work against readable API responses in the browser.React Developer Tools vs WappalyzerBoth are developer tools extensions people shortlist together — see how ratings, install base, pricing and day-to-day use differ.React Developer Tools vs JSON FormatterBoth are developer tools extensions people shortlist together — see how ratings, install base, pricing and day-to-day use differ.All comparisonsThe full compare hub, grouped by category.
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Frequently asked questions
What is the best alternative to DevTools Pro - Developer Toolbox?
React Developer Tools is the closest match. Covers similar ground in the Developer Tools category: Inspect React component trees, props and state.
Is there a free alternative to DevTools Pro - Developer Toolbox?
Yes — React Developer Tools, JSON Formatter, Web Developer are free.