18+ Dev Tools in One App – Full Source Code

Android Studio source code of a fully functional offline developer toolkit with 15+ essential tools for mobile development.

Unlock the potential of the Developer Toolkit with this complete source code. This app features 15+ essential developer tools that work offline, making it the perfect solution for developers, programmers, testers, and engineers who need quick, reliable utilities without relying on internet access.

Included Tools:

• JSON Formatter: Beautify and validate JSON data.
• XML Beautifier: Format XML data for better readability.
• HTML Viewer: View HTML content.
• Base64 Encoder/Decoder: Encode and decode Base64 strings.
• Hash Generator: Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
• URL Encoder/Decoder: Encode and decode URLs.
• Regex Tester: Test regular expressions against text.
• Text Diff: Compare two texts to find differences.
• UUID Generator: Generate universally unique identifiers.
• Color Converter: Convert color codes between different formats (e.g., RGB, Hex).
• Log Viewer: View application logs.
• Clipboard Manager: Manage clipboard history.
• App Info Viewer: View detailed information about installed applications.
• JavaScript Tester: Execute JavaScript code snippets.
• HTTP Header Viewer: Parse and view HTTP headers.
• Network Packet Size Calculator: Calculate network packet sizes.
• MAC Address Formatter: Format MAC addresses.
• Ping Tools (Local).
• Morse Code Converter.
• Offline Functionality: All core tools work without an internet connection.

The source code is clean, well-documented, and easy to customize. It is designed to work offline, offering a fast, secure, and seamless experience without the need for APIs or internet connectivity.

Key Features:

• Complete source code for 18+ offline developer tools
• 100% native Android Studio Project (Java/Kotlin)
• Works 100% offline – no data or APIs needed
• AdMob Integration ready
• Easy to modify and integrate into your projects
• Detailed documentation included

Requirements:

• Android Studio (latest stable version recommended)
• Gradle (configured automatically with Android Studio)
• Minimum SDK 24 (Android 7.0 – Nougat) or higher
• 50 MB free storage space

Setup Instructions:

1. Download & Open Project

• Download or clone the source code from your Codester purchase.
• Open in Android Studio (latest stable version recommended).
• Wait for Gradle sync to complete automatically.

2. Run the Project

• Select a device or emulator running Android 7.0 – Nougat or higher.
• Click Run (Shift + F10) in Android Studio.
• The app will build and install automatically.

3. Customize the App

• Change branding: Replace app icons in app/src/main/res/mipmap-*. Update splash screen images in app/src/main/res/drawable.
• Modify tools: Add, remove, or edit tools in the app module source files.
• Enable AdMob: Add your AdMob App ID to AndroidManifest.xml. Add Ad Unit IDs in the code where ads are loaded.
• Change app name or package ID: Update in app/src/main/AndroidManifest.xml and build.gradle.

4. Test the App

• Use a real device or high-performance emulator.
• Ensure all 18+ tools function offline as intended.

5. Build Release APK

• Go to Build → Generate Signed Bundle/APK in Android Studio.
• Create or use an existing keystore for signing.
• Select APK → Release → Finish.
• Your signed APK will be generated in app/release/.

6. Publish

• Ready to upload on Play Store, Codester, or any app marketplace.
• Include screenshots, icons, and banners for a professional listing.

Demo & Resources:

APK: Download APK
Watch Video: YouTube Demo