Free tools
Free Online Web Tools & Developer Utilities
Access a complete collection of free online utilities. Fast, easy-to-use developer tools, image converters, and formatters ready to use in your browser.
Developer Tools
Base64 Encoder Decoder
Easily convert text or binary data to Base64 and back. Secure, browser-based Base64 encoder decoder with zero server uploads for complete privacy.
Try itBulk Base64 Encoder Decoder
Convert multiple text strings or files to and from Base64 instantly. Secure client-side processing with our bulk Base64 encoder decoder.
Try itOnline JSON Formatter
Format, beautify, and validate your JSON data instantly in your browser. Clean up minified JSON and debug syntax errors securely with no server uploads.
Try itOnline MD5 Generator
Generate secure MD5 hashes instantly in your browser. Perfect for verifying file integrity, checking checksums, and database indexing.
Try itURL Encoder Decoder
Encode or decode URLs instantly. Safely convert query parameters, special characters, and percent-encoded strings directly in your browser.
Try itGeneral Utilities
Free Online Image Compressor
Compress JPG, PNG, and WebP images directly in your browser. Reduce file size without losing quality. No uploads required for maximum privacy.
Try itImage to PDF Converter
Convert JPG, PNG, and WebP images into high-quality PDF documents directly in your browser. No registration or file uploads required.
Try itSecure Password Generator
Generate strong, secure, and random passwords instantly in your browser. Customize length and characters. No data is sent to our servers.
Try itFree PDF to Image Converter
Convert PDF pages into high-quality PNG or JPG images instantly in your browser. No registration, no file uploads, and complete privacy.
Try itFree QR Code Generator
Generate static QR codes instantly in your browser. Secure, private, and free QR code generator with no registration or server-side storage required.
Try itOnline Text Diff Checker
Compare two texts instantly to find differences. Our free online text diff checker highlights additions, deletions, and changes locally in your browser.
Try itAbout the StashKit Toolkit
StashKit provides a comprehensive suite of free, browser-based utilities designed to streamline your daily workflow. Whether you need developer tools like JSON formatters and Base64 encoders, or everyday utilities like PDF converters and password generators, everything is available instantly in one place.
No software downloads or registrations are required. All tools run quickly and securely, ensuring your tasks are completed in seconds without compromising your data.
Need to generate trackable QR codes?
Take your links to the next level. Create custom, fully trackable QR codes with real-time scan analytics to monitor your performance — no credit card required.