A collection of essential utilities designed for developers and programmers. All tools are free and work in your browser.
Available Developer Tools#
Data Formatting#
- JSON Formatter - Format, validate, and beautify JSON
- YAML to JSON - Convert YAML to JSON format
- JSON to CSV - Convert JSON arrays to CSV
Encoding/Decoding#
- Base64 - Encode and decode Base64 strings
- URL Encoder - Encode and decode URLs
- HTML Encoder - Encode/decode HTML entities
- Image to Base64 - Convert images to Base64
Security & Hashing#
- Hash Generator - Generate MD5, SHA-256 hashes
- UUID Generator - Generate unique UUIDs
- Password Generator - Create secure passwords
- JWT Decoder - Decode and inspect JWT tokens
Testing & Debugging#
- Webhook Tester - Test webhook integrations
- Regex Tester - Test regular expressions
- Diff Checker - Compare text differences
Date & Time#
- Timestamp Converter - Convert Unix timestamps
- Cron Generator - Build cron expressions
Color & Design#
- Color Converter - Convert HEX, RGB, HSL colors
Common Use Cases#
API Development#
When building APIs:
- Use JSON Formatter to validate response payloads
- Test endpoints with Webhook Tester
- Generate UUIDs for unique identifiers
- Create JWT tokens for authentication testing
Data Processing#
For data tasks:
- Convert data formats (JSON to CSV, YAML to JSON)
- Encode binary data with Base64
- Hash sensitive values
- Compare versions with Diff Checker
Debugging#
When troubleshooting:
- Pretty-print compressed JSON
- Decode encoded URLs or HTML
- Test regex patterns
- Debug webhook payloads
Security Notes#
All our developer tools:
- Process data locally in your browser
- Don't send your data to servers
- Don't store or log your inputs
- Are safe for sensitive information