Is my JSON data safe and private?
Privacy & Security
By Dmitrii Kargashin · Updated July 2026
Yes — for all core features, your JSON stays in your browser.
All core features (formatting, validation, minification, schema checks) run entirely in your browser. AI-powered features send your JSON to our servers for processing.
Client-Side Processing
All essential JSON operations happen locally on your device:
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Formatting: Processed locally, never sent to servers
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Minifying: Performed in your browser
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Validation: Syntax checking happens client-side
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Schema validation: Validated locally using Ajv library
What This Means for You
- • Core features (format, validate, minify, schema) run in your browser
- • AI features send JSON to our servers for processing
- • Projects and AI history are stored on our servers for authenticated users
- • We do not use your data for AI model training
Best Practices for Maximum Privacy
For Sensitive Data
- • Clear browser cache after use
- • Use private browsing mode
- • Don't share URLs with JSON data
Security Features
- • No server-side storage for core features
- • No analytics tracking of JSON content
- • We never sell your data or share your JSON with advertisers — the service providers that run the product (AI, hosting, payments, analytics) are listed in our privacy policy
- • Isolated browser environment
Technical Note: JSON Copilot uses localStorage to remember your preferences (theme, indentation settings). For authenticated users, project data and AI history are stored on our servers.
See also: client-side processing
Still Have Questions?
Check out our other FAQ topics or return to the JSON Copilot app