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Privacy First
Zero data collection. Your code never leaves your device.
Lightning Fast
Instant processing with no server round trips.
Open Source
Transparent code you can review and trust.
Always Free
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Most Popular Developer Tools
DevConverter provides essential free online developer tools including a JSON formatter and validator, Base64 encoder/decoder, JWT decoder, and hash generator (MD5, SHA-1, SHA-256, SHA-512). All tools process data locally in your browser for maximum privacy and security. Need to work with timestamps? Try our Unix timestamp converter for epoch time conversions. Perfect for API development, debugging, and data processing tasks.
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Discover 90+ developer tools organized by category. From JSON formatting to cryptography, find the perfect tool for your workflow.
Why Developers Choose DevConverter
Whether you're debugging APIs, encoding data, or validating tokens, our developer tools help you work faster. No installation needed—just open your browser and start using professional-grade tools instantly.
Lightning Fast
All processing happens in your browser. No server delays, no waiting. Handle large files and complex operations without breaking a sweat.
100% Private
Your data never leaves your device. Complete privacy guaranteed. Perfect for handling sensitive information like API keys and tokens.
Developer First
Keyboard shortcuts, dark mode, syntax highlighting, and features developers actually need for maximum efficiency.
Common Developer Use Cases
From API development to security tasks, DevConverter has the tools you need for everyday coding challenges. Format JSON responses, decode JWT tokens, encode credentials, and generate hash signatures—all in one place.
Format JSON responses, decode JWT authentication tokens, encode API credentials in Base64, and generate hash signatures for webhooks. Perfect for REST API development, GraphQL debugging, and API integration testing.
Convert between JSON, CSV, YAML, and XML formats. Transform text encodings, generate checksums for data validation, and process large datasets entirely in your browser without server uploads.
Generate secure hashes (MD5, SHA-1, SHA-256, SHA-512) for password verification, create UUIDs for unique identifiers, validate cryptographic signatures, and encode sensitive data client-side for maximum privacy.
Compare code changes with text diff checker, beautify minified JavaScript and JSON, validate syntax errors, decode error messages, and test regular expressions with our regex tester for faster debugging workflows.
Frequently Asked Questions
Everything you need to know about DevConverter
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