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Asterisk vs FreePBX: catalog facts
Asterisk	FreePBX
Free Free and open source.	Freemium Free and open source, with optional paid commercial modules and support.
Linux, Self-hosted	Web, Self-hosted
Run your own PBX and VoIP system Flexible enough to build custom telephony setups	Free to download and run on your own server Web interface for managing the phone system
Configuration requires telephony knowledge A framework to build on rather than a ready-to-use phone system	Requires running and maintaining your own server Some advanced features are in paid commercial modules
Downloadable app, Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.