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About this app

DevToolkit - A Toolkit for Developers

DevToolkit is a comprehensive application of essential utility tools for developers, helping you quickly handle common tasks right on your phone without needing a computer.

📋 KEY TOOLS:

• JSON Formatter - Format, minify, and check JSON syntax with various indentation options.

• JWT Decoder - Decode JSON Web Tokens, view details of Header, Payload, and token expiration.

• Timestamp Converter - Convert between Unix Timestamp and date and time with a real-time clock.

• Color Converter - Convert color codes between HEX, RGB, and HSL with a visual preview panel.

• CSS Generator - Generate CSS code for Box Shadow, Gradient, and Border Radius with a live preview.

• Regex Tester - Test regular expressions with result highlighting, catch groups, and common patterns.

• Base64 Encode/Decode - Encodes and decodes Base64 strings with automatic format recognition.

• Hash Generator - Generates MD5, SHA-1, and SHA-256 hashes simultaneously from input strings.

• URL Encoder/Decoder - Encodes and decodes URLs with detailed URL structure analysis.

✨ KEY FEATURES:

• Modern Material Design 3 interface, supporting Light and Dark modes.

• Supports both Vietnamese and English languages.

• Saves usage history for quick retrieval.

• Bookmark frequently used tools as favorites.

• Copy results with just one touch.

• Quickly paste from the clipboard.

• Operates completely offline, no network connection required.

• Does not collect personal data. All processing takes place on your device.

DevToolkit is designed to be a reliable companion for programmers, helping to increase productivity anytime, anywhere.

Download DevToolkit now and simplify your daily programming tasks!
Updated on
May 16, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Content rating
Everyone
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About the developer
NGUYỄN THỊ QUỲNH GIANG
olremeutca@gmail.com
Vietnam