- Regex
- Unicode / UTF-8 / ASCII / Emoji
- HTML escape
- base64 base36 base10
- JWT encode/decode
- URL encode
- HTML encode
- epoch
- timezone
- Time format
- Time zone conversion
- Digest / hashing
- DSA / RSA
- OpenSSL
- JSON
- YMAL
- JSON diff
- Text diff
- Image diff
- Favicon
- Image size minify
- PNG <-> SVG <-> JPEG <-> WEBP
- Hex editor
- HTTP / Rest mock
- OAuth / OIDC debugger