Instant JSON Formatter
Fast, free, and private JSON toolkit operating fully in the browser.
1 ratings4.04
Saves1
CategoryDeveloper Tools
PlatformWeb
PricingFree
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Instant JSON Formatter is a browser-based toolkit for formatting, validating, minifying, viewing, and converting JSON data with zero server uploads and full offline privacy. It processes all data locally for instant performance and strong security, supporting files up to 10MB and featuring keyboard shortcuts and a responsive design.
offlineprivacyopen-source
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Information
CategoryDeveloper Tools
PlatformsWeb
PricingFree
AccountNot confirmed
ListedOctober 2026
WebVisit
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Mobile PageSpeed
Automated checks of the public website by Google Lighthouse 13.5.0. Scores can vary between runs.
Checked Oct 23, 2026
Test this website on PageSpeedWebsite checks refresh automatically each week.
- Performance
- 81 out of 100, Needs improvement
- Accessibility
- 92 out of 100, Good
- Best Practices
- 100 out of 100, Good
- SEO
- 100 out of 100, Good
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