I made this because I was tired of upload-your-PDF sites that want a sign-up or put a watermark on the result. OpenFile is a static web app with 360+ tools for PDF, images, video, audio, fonts, archives and data. Everything runs on your device with WebAssembly and Web Workers, so a file never reaches a server. You can install it as a PWA and use it offline, and there are desktop and Android builds too. Live app: openfile-studio.vercel.app . Demo video: youtu.be/cfftdAUJwp4 . I would like to hear which tools you miss from the big upload-based sites, and I am happy to add them.