Compress and convert images, merge and split PDFs, format JSON, generate QR codes and hashes — all running entirely in your browser. Your files never reach a server. There is no upload step, no account, and no queue. Open the tool, drop the file, get the result. The tools are also honest about their limits: the image compressor returns your original file whenever compression would make it bigger, instead of handing back a larger file labelled "compressed". Free, no sign-up, works on mobile.