PolarSSL is now part of ARM Official announcement and rebranded as mbed TLS.

About us

What is mbed TLS?

mbed TLS is an open source SSL library licensed by ARM Limited.. mbed TLS used to be called PolarSSL, which started as the official continuation of another project, called XySSL, in 2008 and has been developed further ever since. mbed TLS is supported by ARM with a young dynamic team which aims to keep customers happy with its straightforward and easygoing philosophy.


ARM contributes most major developments for mbed TLS. In addition we get a lot of love from our users and we often get new features contributed to the project that originate from the open source community.

So if you are looking for a simple and effective SSL library do not look any further! Be part of an ever growing community of satisfied users. Curious what other users say about mbed TLS and PolarSSL?


Our users