DevPocket: Developer Utilities
Offline Regex, JSON, API Tools
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Essential developer utilities in one place. Test Regex, format JSON, inspect APIs, and use Base64, Cron, and Unix permission tools even offline.
DevPocket is your all-in-one utility app designed specifically for developers. Featuring 15 powerful tools, almost everything works completely offline (except the API client). Verify, format, and test your code quickly, even when you're on the go and can't open your laptop.
[ Core Features ]
*Regex (Regular Expressions)
Real-time regex testing with syntax highlighting
Detailed Capture Groups viewing
*JSON Tools
JSON validation, formatting, and minification
Interactive Tree View for complex data
*API Client (Requires internet)
Lightweight HTTP client for REST API testing
Quick cURL command import
Request history for fast re-testing
*12 Handy Utilities
Base64 Encoder / Decoder
URL Encoder / Decoder
JWT Decoder
UUID Generator
Lorem Ipsum Generator
QR Code Generator
Hash Generator (MD5, SHA, etc.)
Color Converter (HEX, RGB, etc.)
Base Converter
Unix Timestamp Converter
String Case Converter (CamelCase, snake_case, etc.)
Text Diff Viewer
[ Highlights ]
Fully offline capable (excluding API tester)
Optimized for both Light and Dark modes
Ad-supported with a one-time $1.99 IAP to remove ads
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
New tools: HTTP Status Codes, HTML Entity, Cron Parser, and Unix Permission Calculator
Improvements: Regex Replace and 10 preset patterns, JSONPath queries, API request cancelation, history search, and large response warnings
Fixes and polish: Diff comparison issues, color converter sync issues, improved cURL import handling, plus UI and localization updates
The developer, SEUNGHYUN LEE, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- SEUNGHYUN LEE
- Size
- 9.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Korean
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Remove Ads (Premium) 999.00₸
- Copyright
- © 2026 hyunnyapps