Welcome to SQX Archiver!

On these pages you can find the latest information on the SQX format, the free SDK as well as source code and source samples related to the SQX archive format.

The SQX archiver is a high performance file archiver. It was developed because the specifications for most other archivers are not fully available to third parties. Some archiver manufacturers even prohibit the use of their formats in your own applications if you wish to compress files. In the areas of high compression ratios, strong encryption or extra features such as recovery data, no free libraries are available.

The SQX archiver is different: You are allowed to freely use the provided format specifications, the source code, source samples and precompiled DLLs – all without paying any license fees.