Thanks for trying Semaphor

Encrypted group chat and file-sharing to protect you and your company.

Follow these three easy steps to get going:

1. Download

Semaphor should begin downloading for you automatically. If not or if you have any issues, please visit our Downloads page to get started.

2. Install

Install Semaphor and begin the signup process in the application. You can add your photo, set your recovery key, and create your team or organization.

3. Get Going

Once you have your first team set up, invite others so you can begin enjoying encrypted group chat. Simply send an email invite or URI under "Manage Team."


Please visit our Support page, we're happy to help. If you have any issues or would like to download Semaphor on another operating system, please visit our Downloads page.

Enjoy Semaphor! Every conversation you and your employees have, every file you share, and message you send is 100% cryptographically secure. We wanted to give you something that not only drastically increases security, but is enjoyable and easy to use.

If you want to dig deeper, check out the Semaphor Encryption White Paper, review the source code, and find out why we only build products with Zero Knowledge privacy to give you complete ownership of your data.