Warning: This demo runs compression and decompression entirely in your browser. Uploading very large files may consume a large amount of RAM and CPU and can crash your tab really badly, and if you have a chromebook, you're probably one of the most cooked people at that moment. For large files, you should use the native command line, shard-cli build instead.
Shard Compressor © 2025 by 12Tae12 is licensed under CC BY-ND 4.0

Shard Compress — WASM demo

Upload a file, compress or decompress it locally in your browser. No data leaves your machine.

Drop a file here
or click to select — supported: any file
No file selected
Idle