GUI Tools is an all-in-one collection of 40+ web utilities designed for speed and privacy. Unlike traditional tools, all processing happens locally in your browser—your files, passwords, and data never touch our servers. Key Features: Developer Tools: JSON/XML formatters, JWT decoder, and UUID generator. File & Image: PDF merging/splitting and image compression. Visual Design: QR/Barcode generators and CSS builders. Productivity: Unit converters and secure password generators.