DEVtoy macOS · iOS · visionOS
50+ developer tools.
Offline AI support.
Completely offline. Completely private.
Data & Format21
- JSON Format/Validate
- XML Beautify/Minify
- YAML to JSON
- JSON to YAML
- CSV to JSON
- JSON to CSV
- SQL Formatter
- Color Converter
- Number Base Converter
- HTML Beautify/Minify
- CSS Beautify/Minify
- JS Beautify/Minify
- TOML to JSON
- JSON to TOML
- JSON Lines Converter
- JSON Schema Validator
- JSONPath Tester
- JSON Diff
- JSON Flatten/Unflatten
- XML to JSON
- JSON to XML
Encode / Decode14
- Base64 String Encode/Decode
- Base64 Image Encode/Decode
- Base32 Encode/Decode
- URL Encode/Decode
- URL Parser
- JWT Debugger
- Hash Generator
- UUID/ULID Generate/Decode
- HTML Entity Encode/Decode
- Backslash Escape/Unescape
- Hex to ASCII
- ASCII to Hex
- Certificate Decoder (X.509)
- Unix Time Converter
Web & Text13
- HTML Preview
- Markdown Preview
- HTML to Markdown
- Text Diff Checker
- Lorem Ipsum Generator
- Password Generator
- QR Code Reader/Generator
- String Inspector
- Unicode Inspector
- String Case Converter
- Line Sort/Dedupe
- RegExp Tester
- Cron Job Parser
Code & DevOps8
- HTML to JSX
- SVG to React Component
- SVG to CSS
- cURL to Code
- JSON to Code
- Docker Run to Compose
- Semver Range Checker
- CIDR / Subnet Calculator
Universal Tool
Offline AI support.
Offline AI requires Apple Intelligence and iOS 27, macOS 27, or visionOS 27 on supported hardware.