Free demo
All-zero files
We compress them here. A file that is only zeros becomes 8 bytes, and it restores. Try it below. No account. No charge.
See it work · then pick how you pay
Prove compression in the browser. Buy the hosted one when the files are real.
One million zeros become 8 bytes and come back. That demo is free. Everyday files — backups, datasets, archives, logs — run on PCC, the hosted compressor. pulsar is the free compressor you run on your own machine.
TRU8
1e6 → 8 Bzeros round-trip
free demo
PCC
51,498,645Silesia packed
DECODE_OK 12/12
pulsar
55,745,438you run it locally
GPLv3
Hosted · you pay for access
Everyday files — PCC
Real datasets, backups, archives, logs. You run it on our machines. You get a smaller file that still restores every byte. Source is dual-licensed. A PCC seat is the hosted grant.
Free to download
pulsar
Free lossless compressor you run on your own machine. Linux binary and source. To put it inside a closed commercial product, pay $390/year. $199 support is help on top of that.
Prices and terms: licensing.json · COMMERCIAL-LICENSE.md. The production engine stays private.