Your files stay on your device

# Open a Zstandard file

Open a .zst file.
Zstandard fileDrop a file hereNothing is uploadedChoose file

Decode only, on purpose: this build ships the zstandard decoder and no encoder: nothing half-ships. The magic bytes (28 B5 2F FD) are checked before the decoder runs, so wrong files fail with a name, not a crash.

## More PDF & file tools

- [Gzip files](/files/gzip)
- [Brotli files](/files/brotli)
[All PDF & file tools](/files)

---

Canonical HTML: https://nutter.tools/files/zstd/
Markdown version: https://nutter.tools/files/zstd/index.md
Plain-text version: https://nutter.tools/files/zstd/index.txt
Agent index: https://nutter.tools/llms.txt