PRODUCTIVITY
SELF-HOSTABLE
ACTIVELY MAINTAINED
FREEMIUM
FONOSTER
Fonoster is the premium open-source alternative to Twilio, empowering businesses to build and deploy scalable voice and messaging applications with ease. Unlock limitless communication possibilities with a flexible, developer-friendly platform, leveraging a robust stack for voice, messaging, and storage, ideal for innovative enterprises.
GITHUB STARS
7.8k
+12% this month
FORKS
502
Active community
LAST PUSH
Apr 24, 2026
High momentum
WATCHERS
114
Tracking updates
LICENSE
Apache-2.0, MIT, Mozilla Public License 2.0, ISC
Commercial use
Fonoster is the premium open-source alternative to Twilio, empowering businesses to build and deploy scalable voice and messaging applications with ease. Unlock limitless communication possibilities with a flexible, developer-friendly platform, leveraging a robust stack for voice, messaging, and storage, ideal for innovative enterprises.
High Performance
Built for speed and minimal overhead.
Self-hostable
Docker, Kubernetes, or bare metal
Developer Native
Programmable via any language workflow
SUPPORTED LANGUAGES
VISUAL INTERFACE
The Quick Glance
Status
Active
Category
Productivity
Pricing
Freemium
Self-Hosted
Yes
Available on
Web
Latest Release
v0.17.1
Jan 30, 2026Relative Standing — across 1,284 tools
STARS7.8k
Top 40% globally
FORKS502
Top 49% in Open Source
ACTIVITYModerate
Top 66% Activity
WATCHERS114
Top 31% Community