Mega has been on our radar for secure file storage ever since the file storage phoenix rose from the ashes of MegaUpload. Now, the company has created MegaChat, which it bills as a secure alternative to Skype, offering browser-based voice and video chat.
The service is clearly being pitched to the security-conscious. As The Verge rightly points out, Mega's history with end-to-end encryption hasn't always been up to industry standards, but it's probably better than nothing. Mega is also offering bounties for anyone who can find security holes at the moment. It's a fledgling beta, but the adventurous can try it out right now.
At the moment, the service is limited to voice (seen above) and video calls. Text chat and group video conferences are coming later. The beta is open to the public. All you need to do is sign-up for a Mega account at the source link below and add contacts. So far it seems to work pretty well as a chat service, though whether it's really as secure as Mega claims is yet to be determined.