Signal is an open-source Instant Messaging & Chat solution from Signal Foundation. Compare it against 3 other Instant Messaging & Chat tools on FreeSoftwareX — by features, licensing and price — and request a quote or demo free in 2026.
What is Signal?
Signal is open source — its source code is publicly available and free to use, modify and self-host, usually with an active community and no licensing fees. It is categorised under Instant Messaging & Chat and published by Signal Foundation. Buyers typically evaluate Signal when they need a dependable Instant Messaging & Chat option and want to weigh the trade-offs between free, open-source and paid tools before committing.
Yes. Signal is open source and free to use, with no purchase cost for the core product.
What are the best Signal alternatives?
Popular Instant Messaging & Chat alternatives to Signal include Discord, Telegram, WhatsApp. See the full list of Instant Messaging & Chat on FreeSoftwareX.
