Signal
About
Signal is a free, open-source, cross-platform instant messaging service that prioritizes user privacy and security through end-to-end encryption. It offers secure text, voice, and video calls, as well as file sharing, for individuals and groups. Signal is developed and maintained by the non-profit Signal Foundation.
Key facts
At-a-glance profile data
- Website
- signal.org
- Headquarters
- Washington, United States
- Total funding
- -
- Business model
- B2C
Tech stack
Detected on signal.org, last scanned 27 Sept 2026. Run your own scan
- Support
- Zendesk
- CMS / Builders
- Shopify
- CDN
- Cloudflare
- Email provider
- Google Workspace
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