JSON Formatter
Makes JSON easy to read. Open source.
The original JSON Formatter, now with optional dark mode 🌚
Auto-formats JSON when you load it in a browser tab.
FEATURES
- Fast, even on very long JSON pages
- Dark mode
- Syntax highlighting
- Collapsible trees, with indent guides
- Clickable URLs
- Negligible performance impact on non-JSON pages (less than 1 millisecond)
- Works on any valid JSON page – URL doesn't matter
- Buttons for toggling between raw and parsed JSON
- FIXED: Exports the parsed JSON to window.json so you can explore it in Dev Tools
Note: this extension might clash with other browser extensions that modify the DOM before it runs. If it doesn't seem to be working, try disabling other extensions. If it clashes with an extension you need, open an issue and I'll try to find a solution.
SOME EXAMPLE JSON PAGES to try it out on:
https://callumlocke.github.io/json-formatter/
PRO TIP
Hold down control (or cmd on Mac) while collapsing a tree - collapses all siblings too.
PRIVACY
No tracking, no advertising, and nothing else nefarious.
SOURCE CODE
github.com/callumlocke/json-formatter
ISSUES
github.com/callumlocke/json-formatter/issues
WHO MADE THIS
twitter.com/callumlocke
Latest reviews
this is simple json not working on all page Best and all features include Json Viewer Pro by Patilweb https://chromewebstore.google.com/detail/json-viewer-pro-by-patilw/incoinbbbgipfabmmaldmhllgbfndhpa
anyone giving this 1 star is experiencing skill issue
high recommendable for everyone...two thumbs up..
great extension for json ty so much !!!
Json formatter is not working, I've tried uninstalling it and re-installing, but I've failed
it's very helpful for me. i can not think of viewing JSON from API without this extension
Nice and simple view for JSON, but huge memory use and hanging with big JSON text
scam
Dark theme/White Theme activation not working! fix this bug. Thanks
cannot activate dark theme
This is perfect :) you see everything
Life saver!
I can't live without it.
LOVE IT!
If only it showed the line number then it would be perfect
Truly Amazing app! Love it
Lacks guidance on how to use it to read Chat GPT or Google takeout backups in browser in readable format or convert it to HTML readable format or txt. Bad.
Great tool, highly recommend!
helpfull for anyone who tries to read JSON
A must for developers
Very helpfull!!!
I love it
Helpfull and great
AMAZING
Just Awsome
Just great!
It works very well. Its amazing
very nice its sure help understanding certain issues i do love the options
Simple & sufficient! Using it along with SuperDev Pro.
Works beautifully.
works perfect. thank you
Doesn't work - the built-in pretty print from Chrome seems to conflict with this. Will update to 5 stars once fixed.
Works perfect
The JSON Formatter by Callum Locke is an indispensable tool for anyone working with JSON data. It effortlessly transforms messy JSON strings into a beautifully formatted and easy-to-read structure, saving developers significant time and effort. The tool is intuitive, lightning-fast, and perfect for debugging or simply making JSON more readable. Whether you're dealing with large data sets or just need a quick format check, this tool is a must-have. Highly recommended for developers who regularly handle JSON data!
Works immediately after installing - no need to configure anything. Good job!
Good, but theme (in options) doesn't work, so no way to choose dark mode. An editable stylesheet would be good too as the font size and line spacing is a little too large for my liking.
Awesome tool, works great! It would be nice to have an option to select text colors on our own.
Cant help but notice that mr. 1 star hasnt updated his review. not cool bruh, not cool.
The chrome's built-in pretty print toggle conflicts with this. My suggestion would be to have some padding at the top so the chrome's pretty print stripe does not overlap the contents of the json. The 1 star is just to catch your attention, i'll surely update it to 5 when you do this urgent update.
Chrome now has a "Pretty-print" option that overlaps with this extension. Please fix
This extension is only good for small JSON file, loading forever while I tried to load a large JSON response.
Dude not working on long JSON response!
Works so naturally that I forget it's not just a part of Chrome. Great stuff!
Simple and useful noch only during development. No idea why this is an extension not a built-in feature.
thanks, this very useful
Awesome
nice ...
Great extension! ❤️❤️🔥🔥🔥
Super!
very useful
