JSON Formatter 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.
JSON Formatter pretty-prints JSON API responses with syntax highlighting, collapsible nodes, clickable URLs and a raw/parsed toggle, replacing an unreadable wall of text.
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| JSON Formatter (original) | 4.3 | 2M+ | Free | Anyone poking at REST APIs directly in the browser. |
| Extensions Reloader | 4.4 | 10K+ | Free | Reload all unpacked extensions using the extension's toolbar button or by browsing to "http://reload.extensions" |
| Wappalyzer | 4.6 | 3M+ | Freemium | Developers, agencies and sales teams researching what a site is built with. |
| Web Developer | 4.5 | 1M+ | Free | Web developers who want quick access to common debugging tools without opening DevTools. |
| Web Scraper | 4.1 | 800K+ | Freemium | Marketers and analysts pulling structured data from sites |
| Talend API Tester - Free Edition | 4.8 | 600K+ | Free | Visually interact with REST, SOAP and HTTP APIs. |
| JSON Viewer Pro | 4.6 | 300K+ | Free | A powerful JSON viewer and formatter that offers advanced features for developers and data analysts to visualise and analyse JSON |
| React Developer Tools | 3.9 | 5M+ | Free | React developers debugging component state and render performance. |
| 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. |
| 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. |
Reload all unpacked extensions using the extension's toolbar button or by browsing to "http://reload.extensions"
Why it replaces JSON Formatter: Extensions Reloader is a solid alternative in the same category as JSON Formatter.
Identifies the technology stack behind any website.
Why it replaces JSON Formatter: Wappalyzer is a solid alternative in the same category as JSON Formatter.
Adds a toolbar button with various web developer tools.
Why it replaces JSON Formatter: Web Developer is a solid alternative in the same category as JSON Formatter.
Point-and-click scraper that exports site data to CSV.
Why it replaces JSON Formatter: Web Scraper is a solid alternative in the same category as JSON Formatter.
Visually interact with REST, SOAP and HTTP APIs.
Why it replaces JSON Formatter: Covers similar ground in the Developer Tools category: Visually interact with REST, SOAP and HTTP APIs.
A powerful JSON viewer and formatter that offers advanced features for developers and data analysts to visualise and analyse JSON
Why it replaces JSON Formatter: Covers similar ground in the Developer Tools category: A powerful JSON viewer and formatter that offers advanced features for developers and data analysts to visualise and analyse JSON
Inspect React component trees, props and state.
Why it replaces JSON Formatter: Another popular Developer Tools extension: Inspect React component trees, props and state.
Meta Ads Data Advisor automates connecting your website and marketing data to Meta for better ad performance. No developers needed.
Why it replaces JSON Formatter: 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.
The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
Why it replaces JSON Formatter: Another popular Developer Tools extension: The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
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 JSON Formatter: 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.
Direct comparisons with the extensions people weigh against it.
Extensions Reloader is the closest match. Extensions Reloader is a solid alternative in the same category as JSON Formatter.
Yes — Extensions Reloader, Web Developer, Talend API Tester - Free Edition are free.
