Free Online Converter &
Developer Tools
Convert between formats, encode/decode data, validate inputs, and use powerful developer utilities. All tools work in your browser with no server uploads — your data stays private.
100% Private
All processing happens in your browser. No data is uploaded to servers.
Instant Results
Convert and process data in milliseconds with real-time feedback.
Works Offline
Install as PWA and use all tools without internet connection.
Choose Your Tool Category
TOON Tools
Convert JSON to TOON format for 30-50% size reduction. Perfect for LLM API optimization.
JSON Tools
Format, validate, minify JSON. Generate schemas and fix syntax errors automatically.
Converters
Convert between popular data formats: JSON, YAML, CSV, XML, TOML, SQL and more.
Encoding & Decoding
Encode and decode data using Base64, URL encoding, JWT decoder and more.
Hash & Crypto
Generate SHA-256, SHA-1, MD5 hashes. Secure hashing for passwords and data integrity.
Validators
Validate emails, URLs, phone numbers, IP addresses, and more with instant feedback.
Format Tools
Work with dates, timestamps, environment files and configuration formats.
Utilities
UUID generator, regex tester, case converter, Lorem Ipsum and more dev utilities.
Developer Tools
Generate TypeScript, Go, Python, Java code from JSON. JSONPath query, SQL converter.
Why Choose ConvertTOON?
🚀 For Developers
- • Generate code in 10+ programming languages from JSON
- • Batch convert multiple files at once
- • Syntax highlighting and error detection
- • History tracking and favorites
💡 For Everyone
- • Simple, intuitive interface
- • No signup or registration required
- • Works on desktop, tablet, and mobile
- • Free forever with no limits