One-Stop Developer Toolbox
A collection of essential offline developer tools to boost your productivity. Available for macOS, Windows, and Linux.
🧰 What's in the box?
OfflineTools provides powerful utilities for developers in a single, well-designed desktop application. All tools are also available online for free use in your browser.
Ethereum Unit Converter
Convert between Ethereum units including Wei, Gwei, Ether, Finney, and Szabo with precision.
HTML Text Extractor
Extract plain text from HTML content with customizable options for handling links, images, and formatting.
Base64 Encoder/Decoder
Convert text to Base64 or decode Base64 to plaintext with URL-safe option.
Binary Base64 Encoder/Decoder
Convert binary files to Base64 or decode Base64 to binary files.
File & Text Hash Compare
Compare hashes of files or text strings using different algorithms.
Text Hash Generator
Generate cryptographic hashes from text using various algorithms including SHA-256, SHA-3, and RIPEMD-160.
File Generator
Generate files with specific size and format with random data, zeros, or custom patterns.
UUID Generator
Generate universally unique identifiers (UUIDs) in various formats (v1, v4, v5, v6, v7).
Speech Length Estimator
Calculate how long it will take to speak a text with adjustable speed settings.
Text to Slug
Convert text to URL-friendly slugs with customizable separators and character handling.
Unit Converter
Convert between units of length, weight, temperature, volume, area, energy, and power with precision.
Password Strength Meter
Analyze password strength and get security recommendations based on OWASP industry standards.
Text Utility
Transform text with line break conversion, case conversion, and line sorting utilities.
Watermark Tool
Add watermarks to images with customizable positioning and batch processing support.
Timezone Converter
Convert time between different timezones around the world with real-time conversion.
Data Encryptor
Encrypt and decrypt text or files using password-based AES-256 encryption with secure key derivation.
Steganography Tool
Hide any text securely within images using advanced steganography techniques.
Online Timer
Countdown timer with preset options, sound notifications, and localStorage persistence.
For every developer workflow
OfflineTools adapts to how you work, whether you're a frontend developer, backend engineer, or DevOps specialist.
Frontend Developers
Streamline your frontend workflow with tools for JSON formatting, CSS manipulation, color conversion, and more. All integrated in one powerful application for maximum productivity.
Backend Engineers
Decode JWTs, generate UUIDs, create secure hashes, and test regular expressions without leaving your desktop or exposing sensitive data online. Privacy-first development tools.
Ready to boost your productivity?
Join thousands of developers who use OfflineTools to streamline their daily tasks.
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