DevT Pro: Developer Tools
JSON Formatter, Converter, JWT
USD 9.99
New on iPad: validate JSON, YAML and XML against JSON Schema and XSD, smarter editing and Shortcuts links. 120 tools, offline, one purchase, no subscription.
Format, convert, validate and inspect JSON, XML, YAML, CSV, TOML and more on your iPad. DevT Pro puts 120 developer tools in one fast, offline app with a real code editor, tabs and a command palette.
No subscription. No ads. No account. Everything runs on your iPad, so the payloads, tokens and logs you paste stay on your device.
WHY DEVELOPERS USE DEVT PRO
• One app instead of dozens of websites full of ads and trackers
• Works offline: on a plane, on a train or behind a strict firewall
• Code editor with syntax highlighting, line numbers, folding, find, smart indentation and touch selection
• Tabs: duplicate a tab to compare two versions of a payload
• Command palette and shortcuts with a hardware keyboard
• Open and save through the Files app, iCloud Drive and other providers
• Light and dark themes, Split View and Stage Manager
NEW: SCHEMA VALIDATION
Validate JSON and YAML against JSON Schema (draft 4 to 2020-12) and XML against XSD. Load a schema from a URL or the Files app. Referenced schemas are saved with it, so your recent schemas keep working offline. Tap an error to jump to its line.
NEW: SHORTCUTS AND DEEP LINKS
Create devtpro:// links that open a tool with your text already filled in. Use them in Shortcuts, Safari or Notes.
WHAT'S INSIDE
Converters: JSON, XML, YAML, CSV, TSV, TOML and TOON in every useful direction, plus CSV or TSV to HTML table, JSON to JSON Schema and XML to XSD.
Code generators: JSON to TypeScript, Swift, Kotlin, Dart, Java, C#, Python and Go models. cURL to Swift, Kotlin, Python, JavaScript, TypeScript, Go, Java, C#, PHP, Ruby and Rust.
Formatters and minifiers: beautify JSON, XML, SQL, TOML and TOON; minify JSON, XML and TOML.
Validators: JSON, XML, YAML, TOML and TOON, with optional schema checks.
Viewers: tree, table and formatted views for JSON, XML, YAML, CSV, TSV, TOML and TOON, with JSONPath filtering.
Encoders and decoders: Base64 for text and files, URL encode and decode, URL parser, JWT decoder, HTML entities, hex and ASCII, number base converter, backslash escape.
Security: hash generator (MD5, SHA-1, SHA-256, SHA-512 and more), text encryption (AES, Triple DES, ChaCha20, RC4), password and secret key generator.
Text and time: regex tester, diff viewer, text case converter, lorem ipsum, LLM token counter, Unix timestamp converter, cron expression parser, date and age calculators, world clock.
More: UUID, ULID, KSUID and Snowflake ID generator, color converter, unit converter, chmod calculator, HTTP request parser, QR code generator and reader, HTML and Markdown preview.
Made by an independent developer. Ideas and bug reports are welcome on GitHub.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
This release is all about iPad.
• Schema validation: check JSON and YAML against JSON Schema and XML against XSD in validators, viewers and converters. Results appear in a bottom panel; tap an error to jump to its line.
• Load schemas from a URL or the Files app. Referenced schemas are downloaded and saved with them, so Recents work offline.
• Smarter editor: automatic indentation, closing brackets and tags line up with their opener, and typing a closing quote steps over it.
• Better touch editing: long press for Select, Copy and Paste, plus larger targets for folding code.
• Bottom panels step aside while the on-screen keyboard is up and come back as you left them. Drag to resize them.
• Duplicating a tab now keeps its schema, filters and view.
• New Integrations page: build devtpro:// links that open any tool with your text filled in, ready for Shortcuts, Safari or Notes.
• Links now open the right tool even when the app was closed.
• The Files picker accepts any text file, including .jsonc, .conf and files without an extension.
• Fixes for hardware keyboard shortcuts, About and Help, and many layout details.
The developer, Mohammed Aadhil, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Mohammed Aadhil
- Size
- 53 MB
- Category
- Developer Tools
- Compatibility
Requires iPadOS 16.0 or later.
- iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPad
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Aadhil

