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Last updated on: 2026-06-14
App Store Apps > Dev Tool box - Developer Tools
Dev Tool box - Developer Tools icon

Dev Tool box - Developer Tools

1.0.3
Seonggon Sim
0.00
0 reviews
Free

Dev Tool box - Developer Tools Screenshot 1 of 2
Dev Tool box - Developer Tools Screenshot 2 of 2
Download from the App Store Android version

About Dev Tool box - Developer Tools

Dev Tool box - Developer Tools is an overall app developed by Seonggon Sim.

How many times has Dev Tool box - Developer Tools been downloaded?

What is the rating of Dev Tool box - Developer Tools?

Dev Tool box - Developer Tools has no ratings yet.

Is Dev Tool box - Developer Tools free?

Dev Tool box - Developer Tools is free to download. The APK download size is 3.77 MB. The latest version available is 1.0.3. The last update was on February 2, 2026.

What are the requirements for Dev Tool box - Developer Tools?

The app has a content rating of Everyone. The app has been available on Google Play August 2025.

Description
DevToolbox is an essential collection of developer utilities designed to streamline your coding workflow. Whether you're debugging APIs, encoding data, or formatting JSON, DevToolbox provides the tools you need in a clean, native interface.

KEY FEATURES:

• JSON Formatter & Validator
Format, validate, and beautify JSON with syntax highlighting. Tree view visualization for better structure understanding. Built-in search functionality to find text within large JSON files.

• URL Encoder/Decoder
Quickly encode or decode URLs for API testing and web development. RFC 3986 compliant encoding for maximum compatibility.

• Base64 Encoder/Decoder
Convert text to Base64 and vice versa. Supports URL-safe Base64 and auto-padding. Perfect for encoding credentials, tokens, and data URIs.

• JWT Decoder
Decode and inspect JSON Web Tokens without external services. View header, payload, and signature details instantly. Automatically handles "Bearer " prefix.

• Text Case Converter
Transform text between various cases: camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE_CASE, dot.case, UPPERCASE, lowercase, and Title Case. Smart parsing for any input format.

• Hash Generator
Generate secure hashes using MD5, SHA-1, SHA-256, and SHA-512 algorithms. Essential for checksum verification and security testing.

• Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds. Multiple output formats including ISO 8601, UTC, and local time.

• Number Base Converter
Convert between Decimal, Binary, Octal, and Hexadecimal. Auto-detects input format with 0x, 0b, 0o prefix support.

• String Escape/Unescape
Escape special characters for JSON strings or unescape encoded text. Handles \n, \t, \", \\ and more.

• Color Converter
Convert HEX colors to RGB and HSL with live preview. Generates ready-to-use SwiftUI, UIKit, and CSS code snippets.

WHY DEVTOOLBOX?

• Native Performance: Built with SwiftUI for blazing-fast performance
• Privacy First: All processing happens locally on your device
• Universal App: Works seamlessly on iPhone, iPad, and Mac
• Dark Mode Support: Easy on the eyes during late-night coding sessions
• No Ads, No Tracking: Just pure functionality
• Offline Ready: No internet connection required

Perfect for mobile developers, web developers, API developers, QA engineers, security professionals, and students learning to code.

DevToolbox is your pocket-sized development companion. Stop switching between websites and online tools - get everything you need in one native app.
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More data about Dev Tool box - Developer Tools

Price Free to download
Rating No ratings
Ranking Not ranked
Version 1.0.3
App download size 3.77 MB
Suitable for Everyone

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Changelog of Dev Tool box - Developer Tools

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Developer information for Seonggon Sim

Seonggon Sim

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