Legal
Legal notice.
Last updated 26 October 2026
Who runs this site
Zipling and this website are made by Observant Systems. You can reach us through the project's GitHub page.
Copyright
© 2026 Observant Systems. All rights reserved. The Zipling source code is public so anyone can see how it works, but no licence to use, copy, modify or distribute it is granted at this time.
Trademarks
Apple, Mac, macOS, Finder and Quick Look are trademarks of Apple Inc. MacPacker, 7-Zip, The Unarchiver, Keka, BetterZip and other product names belong to their respective owners. They are mentioned only to compare features and performance. Zipling is not affiliated with, endorsed by or sponsored by any of them.
Benchmarks and comparisons
Benchmark results were measured on the hardware, software versions and data described on the benchmarks page. Your results will differ. Information about other apps comes from public sources as of the date shown on the comparison page and may have changed since. If you find an error, please let us know and we'll correct it.
Pre-release software
Zipling is in development and has not been released. This website and any pre-release builds are provided "as is", without warranty of any kind, to the extent permitted by law. Always keep a backup of anything important.
Open-source components
Zipling's Arca engine is built on these open-source projects, used under their licences:
- Lepton JPEG (Microsoft's Rust port of Dropbox's Lepton), Apache-2.0
- preflate-rs (Microsoft), Apache-2.0
- Zstandard (Meta), BSD-3-Clause, via the zstd crate (MIT)
- XZ Utils liblzma, 0BSD, via the liblzma crate (MIT or Apache-2.0)
- BLAKE3, CC0-1.0 or Apache-2.0
- FastCDC, MIT
- PPMd (ppmd-rust), CC0-1.0 or MIT-0
- Rayon, MIT or Apache-2.0