JSON Formatter icon

JSON Formatter

by 呆萌先生 · fancytools.app · Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

The most beautiful and customizable JSON / JSONP highlighter,Makes JSON / JSONP easy to read. Open source.

Users
49
+2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#110K
#91K among extensions
Version
1.0.0
updated 22 Oct 2024

Users

monthly, 2 years
03265Oct 2024Nov 2025Oct 2026
Latest, 16 Oct 2026: 49 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
001Oct 2024Nov 2025Oct 2026
Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About JSON Formatter

JSON Formatter – The Ultimate Chrome Extension for JSON and JSONP Discover the most beautiful and customizable JSON/JSONP highlighter your eyes have ever seen. This open-source Chrome extension is designed to make JSON and JSONP easy to read and manipulate. Key Features - Auto-Formatting: Automatically formats JSON when loaded in a browser tab. - Syntax Highlighting: Enhances readability with vibrant syntax colors. - Built-in Themes: Choose from 27 pre-built themes or customize your own. - Dark Mode: Optional dark mode 🌚 for comfortable viewing. - Collapsible Nodes: Easily expand and collapse JSON trees with indent guides. - Clickable URLs: Interact directly with URLs within your JSON (optional). - Omnibox Integration: Type `json-viewer` + TAB and paste your JSON into the omnibox, hit ENTER, and get it highlighted. - Line Numbers: Option to show line numbers for better navigation. - Customizable Tab Size: Adjust tab sizes to fit your coding style. - Large Number Support: Handles numbers larger than `Number.MAX_VALUE`. - Configurable Limits: Set a maximum JSON size for highlighting. - Header Info: Option to include a header with timestamp and URL. - Editable JSON: Edit your JSON directly within the extension. - Key Sorting: Option to sort JSON keys. - C-Style Formatting: C-style braces and arrays options available. - Scratch Pad: Type or paste JSON and format indefinitely using a button or key shortcut—simply type `json-formatter` + `TAB` + `scratch pad` ENTER. Performance - Fast Processing: Handles even very long JSON pages efficiently. - Minimal Impact: Negligible performance impact on non-JSON pages (less than 1 millisecond). Usage Notes - Compatibility: This extension might clash with other JSON highlighters/formatters. If it doesn’t work, try disabling other extensions. - Local Files & Incognito Mode: Enable these options manually on the extensions page to highlight local files and incognito tabs. - Chrome Updates: After an update, Chrome might leave an old background process running, revoking some permissions like access to local files. Simply recheck the required options to restore functionality. Privacy No tracking, no advertising, and nothing else nefarious. Your privacy is our priority. Try It Out Enhance your JSON viewing and debugging experience with this exceptional Chrome extension. Download now and elevate your workflow! Download JSON Formatter from the Chrome Web Store today!

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days+2+4.3%00.00
6 months−11−18.3%00.00
1 year−4−7.5%00.00

Chrome Web Store search rankings

Where JSON Formatter appears when people search the store, with the 30 day change
Search phrasePosition30 days
json#49+6

Version history

1 versions recorded
1.0.022 Oct 2024

Details

Category
Developer Tools
First seen
22 Oct 2024
Size
751 KB
Languages
de, en, en-GB, en-US, fil, id, sw, ms
Pricing
Free
Extension ID
anfhekjmilokaeadjnhggmpendnoilnf

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
tabswebRequestactiveTabscripting
Site access
<all_urls>
Can read and change data on every website you visit.

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