JSON It — The fastest way to understand, refactor, and ship JSON payloads
Built on Ace + CodeMirror with precision tooling for search, folding, linting, PDF export, and privacy-first processing.
Instant Beautify
One tap prettification with indentation, folding, and syntax highlight tuned for APIs.
Privacy-First Engine
Runs entirely inside your browser. No upload. No logging. No telemetry touching your JSON.
Smart Workflows
Stringify, minify, diff, merge, and export to PDF without leaving the editor surface.
Command Palette Speed
Keyboard-first shortcuts and search so power users jump between actions at light speed.
Why JSON It?
Designed for practitioners who touch JSON every single day: API devs, QA squads, analysts, students, and tinkerers.
- • Zero ads, zero tracking, zero friction.
- • Offline-ready progressive app experience.
- • Export-ready outputs for docs, tickets, and decks.
Telemetry Snapshot
120K+
Payloads formatted
0 bytes
Data exfiltrated
180+
Countries served
How to use JSON It
- Paste or drop your payload
- Choose Beautify, Minify, or Merge
- Inspect with folding, search, and linting
- Tweak font, indent, theme, and tooling
- Export to JSON, PDF, or copy share-ready snippets
Built for every JSON-human
Developers
Debug APIs, inspect payloads, and prototype endpoints faster.
QA Engineers
Validate responses, compare environments, and share repro-ready logs.
Analysts
Explore structured datasets with tree folding, search, and export options.
Students
Learn JSON quickly with visual cues, hand-holding formatting, and offline access.
Frequently asked
Everything you need to know about privacy, performance, and exports before pasting that mission-critical payload.
Does JSON It store my data?
Never. Everything runs locally in your browser tab so the JSON never leaves your device.
Is it really free?
Yes. No paywalls, no ads, no signup. It’s built for the community.
Does it work offline?
Yep. Once loaded, you can disconnect from the internet and continue working.
How large of a JSON can it handle?
Large payloads are supported thanks to Ace + CodeMirror optimizations.
Can I export as PDF?
Absolutely. Export with timestamps, page numbers, and custom branding.
Is there search & replace?
Yes. Invoke the Ace search panel (Ctrl/Cmd + F) for power filtering.