C++ compression (zip) library for closed-source app.

Question

Please recommend a C++ compression (zip) library for a commercial, closed-source application. So, not a GPL license.

This is for my day job...

Answer 1

7 Zip is LGPL, meaning so long as you treat it like a 3rd-party library, your usage of it is fine in a closed-source app.

http://www.7-zip.org/

Answer 2

I know you said C++, but zlib is a very permissively licensed C library that you could use directly from a C++ app.

If I recall correctly, there are various "iostream-like" wrappers around zlib available, too.

Answer 3

If you need fast decompression, the best you can find is probably LZO. Be aware you need a separate (paid) commercial license when using in a closed source project. Still, if you need the fast decompression it may be well worth the money.

Answer 4

libbzip2 is BSD-licensed and should compress better, although slower, than zlib.

Answer 5

Try this:

http://zziplib.sourceforge.net/