Developer Tools
JSON formatters, encoders, decoders, and code utilities for developers
JSON Formatter & Validator
Format, beautify, and validate JSON data online
Base64 Encoder & Decoder
Encode and decode Base64 strings instantly
JWT Decoder & Validator
Decode and inspect JSON Web Tokens
URL Encoder & Decoder
Encode and decode URL components
Text Tools & Utilities
Word count, case converter, and text manipulation tools
Regex Tester & Debugger
Test and debug regular expressions with live matching
Hash Generator (MD5, SHA-256)
Generate MD5, SHA-1, SHA-256 hashes
URL Slug Generator
Turn titles into clean, URL-safe slugs
Password Generator
Generate strong random passwords and passphrases
Case Converter
Convert text between camelCase, snake_case, kebab-case and more
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences, words or lists
Cron Expression Generator & Descriptor
Build, explain and preview cron schedules
Htpasswd Generator
Generate Apache .htpasswd entries with APR1 or SHA
Popular specialised versions
Preset versions of the tools above, ready for one specific job. Each card lists the ones people reach for most; the tool page has the full set.
JSON Formatter & Validator
- JSON Beautifier
- JSON Validator
- JSON Minifier
- JSON to CSV Converter
- CSV to JSON Converter
- JSON to TypeScript Interface Converter
- JSON to XML Converter
- JSON to YAML Converter
- JSON Diff Tool
Base64 Encoder & Decoder
JWT Decoder & Validator
- JWT Debugger
- JWT Parser
- JWT Header Decoder
- JWT Payload Decoder
- OAuth Token Decoder
- Access Token Decoder
- ID Token Decoder
- JWT Generator
- JWT Validator
URL Encoder & Decoder
Text Tools & Utilities
Regex Tester & Debugger
- Email Regex Tester
- Phone Number Regex Tester
- IP Address Regex Tester
- Credit Card Regex Tester
- HTML Tag Regex Tester
- Username Regex Tester
- MAC Address Regex Tester
- ISO 8601 Datetime Regex Tester
- Whitespace Regex Tester
Hash Generator (MD5, SHA-256)
- MD5 Hash Generator
- SHA-256 Hash Generator
- UUID v4 Generator
- Password Hash Generator
- SHA-1 Hash Generator
- Bcrypt Hash Generator
- HMAC Generator
- GUID Generator
- API Key Generator
URL Slug Generator
Password Generator
Case Converter
- camelCase Converter
- snake_case Converter
- kebab-case Converter
- PascalCase Converter
- Title Case Converter
- Sentence Case Converter
- Uppercase Converter
- Dot Case Converter
- Alternating Case Converter
Lorem Ipsum Generator
About Developer Tools
Developer tools built for speed and privacy. Format JSON, encode Base64, decode JWTs, generate hashes, and test regex patterns—all without leaving your browser. Every tool runs client-side, so your code and data stay completely private. No accounts, no tracking, no server uploads.
All tools run locally in your browser. Your data never leaves your device.