Developer Tools & JSON Editor

50+
Downloads
Content rating
Everyone
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About this app

Developer Tools Json Validator is a comprehensive offline utility suite designed for programmers, web developers, and software engineers. Streamline your workflow with a powerful collection of 18+ essential coding tools that require no internet connection, no login, and no API dependencies.

Whether you need a precise JSON Validator, a fast JSON Formatter, or a reliable Regex Tester, this toolkit provides a secure, private environment for your data. Every utility runs locally on your device, ensuring your source code and configurations remain completely private.

The Complete 18-in-1 Developer Toolkit:
JSON Validator & Formatter: Validate complex JSON structures and format them into readable "pretty" code instantly.

Regex Tester: Test and debug your regular expressions with real-time matching and syntax highlighting.

UUID Generator: Generate version-compliant Universally Unique Identifiers for database entries and session keys.

Base64 Encoder & Decoder: Securely convert text or binary data to and from Base64 format.

HTML Viewer: Render and inspect HTML snippets directly within the app without a browser.

XML Beautifier: Clean up messy XML data with proper indentation and structural validation.

URL Encoder & Decoder: Convert special characters into URL-safe formats for web requests and API calls.

MAC Address Formatter: Quickly reformat MAC addresses into standard colon, dash, or plain notation.

Hash Generator: Create secure cryptographic hashes including MD5, SHA-1, SHA-256, and SHA-512.

JavaScript Tester: Run and debug small JavaScript logic snippets in an isolated sandbox.

HTTP Header Viewer: Parse and inspect HTTP headers to debug network requests and responses.

Network Packet Size Calculator: Calculate data overhead and payload sizes for network optimization.

Log Viewer: Open and analyze system or application logs with an easy-to-read interface.

Clipboard Manager: Access your recent snippets and code segments for quick multi-tasking.

App Info Viewer: Inspect package details, version codes, and permissions for installed applications.

Color Converter: Switch between HEX, RGB, and HSL color codes for your UI/UX design needs.

Timestamp Converter: Convert Unix Epoch timestamps to human-readable dates and vice versa.

Text Diff Tool: Compare two blocks of text or code to find changes, additions, and deletions.

Why use this Developer Toolkit?
Completely Offline: Use every feature without an internet connection. Perfect for working in secure environments or on the go.

Privacy First: We do not collect your code snippets or data. Everything remains on your device.

No Registration: Start using the tools immediately. No accounts, no emails, and no passwords required.

Modern UI: A clean, minimal interface designed for productivity and ease of use.

Lightweight: A small app size that doesn't sacrifice power or utility.

Developer Tools Json Validator is built for modern development environments. If you are a backend engineer working on JSON APIs, a frontend developer tweaking CSS colors, or a QA tester validating Regular Expressions, this all-in-one programmer utility is your essential daily companion.

Optimize your coding efficiency today with the most reliable offline developer utilities available on Android.
Updated on
Feb 15, 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.
This app may share these data types with third parties
Location and Device or other IDs
This app may collect these data types
Location and Device or other IDs
Data is encrypted in transit

What’s new

Initial Release