1. React Developer Tools
Inspect React component trees, props and state.
Why it replaces DevTools Suite: Covers similar ground in the Developer Tools category: Inspect React component trees, props and state.
Best DevTools Suite Alternatives in 2026
DevTools Suite 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 Suite
Free developer tools in your browser — JSON formatter, JWT decoder, regex tester, cron generator, diff checker, and smart checklist.
Free
Full reviewComparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| DevTools Suite (original) | — | — | Free | Free developer tools in your browser — JSON formatter, JWT decoder, regex tester, cron generator, diff checker, and smart checklist. |
| 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 |
| Designer Tools | 4.6 | 100K+ | Freemium | A collection of tools to help you design and develop websites with precision. |
| Axiom Browser Automation for Humans & AI | 4.5 | 100K+ | Freemium | Build bots with no-code, code them, or describe them to Claude. Axiom runs on our cloud or your machine. |
| SN Utils - Tools for ServiceNow | 4.9 | 100K+ | Freemium | Productivity tools for ServiceNow, offered by SN Utils B.V. Not affiliated with ServiceNow, Inc. |
| 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. |
DevTools Suite alternatives in detail
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2. Wappalyzer
Identifies the technology stack behind any website.
Why it replaces DevTools Suite: 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 Suite: 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 Suite: 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 Suite: 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 Suite: Covers similar ground in the Developer Tools category: DevTools browser extension for Vue.js
7. Designer Tools
A collection of tools to help you design and develop websites with precision.
Why it replaces DevTools Suite: Covers similar ground in the Developer Tools category: A collection of tools to help you design and develop websites with precision.
8. Axiom Browser Automation for Humans & AI
Build bots with no-code, code them, or describe them to Claude. Axiom runs on our cloud or your machine.
Why it replaces DevTools Suite: Covers similar ground in the Developer Tools category: Build bots with no-code, code them, or describe them to Claude. Axiom runs on our cloud or your machine.
9. SN Utils - Tools for ServiceNow
Productivity tools for ServiceNow, offered by SN Utils B.V. Not affiliated with ServiceNow, Inc.
Why it replaces DevTools Suite: Covers similar ground in the Developer Tools category: Productivity tools for ServiceNow, offered by SN Utils B.V. Not affiliated with ServiceNow, Inc.
10. 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 Suite: Another popular Developer Tools extension: The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
Compare DevTools Suite 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 Suite?
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 Suite?
Yes — React Developer Tools, JSON Formatter, Web Developer are free.