I built 50+ free browser tools that run without uploads, servers, or accounts

I built 50+ free browser tools that run without uploads, servers, or accounts I spent the last few months building NexaTools — a suite of 50+ browser-based tools that do everything from converting images to generating PDFs, testing regex, and transferring files between devices. The key constraint: most tools never send your data to a server. Why I built this I kept using online file converters that required uploading files to unknown servers. For sensitive documents, screenshots, or anything with metadata — that's a problem. I wanted tools that: Run entirely in the browser (client-side) Work offline after first load (PWA) Have no file size limits Don't require accounts, sign-ups, or even JavaScript frameworks Handle real-world tasks (not just demos) What's in it Media tools Image Converter — WebP, PNG, JPG, AVIF, GIF via Canvas API Video Converter — MP4, WebM, MKV, AVI using FFmpeg WebAssembly Audio Converter — MP3, WAV,