dotdotimg
Compress and convert any file. Runs in your browser — nothing is uploaded.
Drop files here or click to browse
Any file type · as many as you like
Unpacks .zip and .gz files.
Scanning is local. Only the SHA-256 hash (never the file) is sent if you enable VirusTotal. This is a heuristic check, not a replacement for real antivirus.
Results
Images, audio, CSV/JSON and any other file, any size your browser can handle. Video & office formats are compressed, not re-encoded.