Introduction

This Dev Tools Bundle is a portable collection of developer utilities designed to run fully offline.

The bundle includes a set of web-based tools and standalone Python scripts. Everything works locally with no background services, no data collection, and no external dependencies.

Included Web Tools

• OS Detector

• Keyboard Event Viewer

• Clipboard Tester

• URL Inspector

• Password Generator with PIN-protected reveal

• Hash Generator and Verifier

• JWT Decoder

• JSON Formatter and Validator

• Base64 Encode and Decode

• Epoch Time Converter

• UUID Generator

• Regex Tester

• Text Diff Tool

All web tools run by opening a single HTML file in your browser.

Python Scripts

The Python folder contains standalone scripts intended for learning, experimentation, and utility use. Each script runs independently using Python 3.

Design Goals

• Fully offline operation
• Portable by default
• Transparent file structure
• No telemetry or tracking