11 alternatives to Twilio

Twilio is a Communication product. The community recommends 11 alternatives: 11 open source, 11 self-hostable and 11 free to use. They are ranked by community votes, ratings and favorites, with the key differences from Twilio highlighted.

Last updated:

T

About Twilio

Cloud communications API platform for programmable SMS, voice calls, WhatsApp messaging, email and verification.

Closed source
Not self-hostable
Usage-based
Web

Quick picks

Flexisip logo

Best open-source pick

Flexisip

Open source, AGPL-3.0 license

Flexisip logo

Best self-hosted pick

Flexisip

Run it on your own server

Flexisip logo

Best free pick

Flexisip

Free to use

All alternatives

  1. 0
    1.

    Flexisip

    Communication

    Complete, modular and scalable SIP server, includes a push gateway, to deliver SIP incoming calls or text messages on mobile device platforms where push notifications are required to receive information when the app is not active in the foreground.

    Open source Β· AGPL-3.0
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  2. 0
    2.

    Fonoster

    Miscellaneous

    πŸš€ The open-source alternative to Twilio.

    Open source Β· MIT
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  3. 0
    3.

    FreeSWITCH

    Communication

    Scalable open source cross-platform telephony platform.

    Open source Β· MPL-2.0
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  4. 0
    4.

    Janus

    Communication

    General-purpose, lightweight, minimalist WebRTC Server.

    Open source Β· GPL-3.0
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  5. 0
    5.

    Kamailio

    Communication

    Modular SIP server (registrar/proxy/router/etc).

    Open source Β· GPL-2.0
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  6. 0
    6.

    Notifo

    Communication

    Multichannel notification server with support for Email, Mobile Push, Web Push, SMS, messaging and a javascript plugin.

    Open source Β· MIT
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  7. 0
    7.

    Novu

    Communication

    Notification infrastructure for developers.

    Open source Β· MIT
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  8. 0
    8.

    ntfy

    Communication

    Push notifications to phone or desktop using HTTP PUT/POST, with Android app, CLI and web app, similar to Pushover and Gotify.

    Open source Β· Apache-2.0, GPL-2.0
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  9. 0
    9.

    openSIPS

    Communication

    SIP proxy/server for voice, video, IM, presence and any other SIP extensions.

    Open source Β· GPL-2.0
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  10. 0
    10.

    OpenWA

    Communication

    Free, Open Source, Self-Hosted WhatsApp API Gateway

    Open source Β· MIT
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)
  11. 0
    11.

    PushBits

    Communication

    Self-hosted notification server for relaying push notifications via Matrix, similar to PushBullet and Gotify.

    Open source Β· ISC
    Self-hostable

    Compared with Twilio

    • + Open source (Twilio is not)
    • + Self-hostable (Twilio is not)
    • + Free to use (Twilio is paid)

Twilio vs. alternatives

ServiceOpen sourceSelf-hostedLicensePricingPlatformsRatingVotes
Twilio
Current
NoNoproprietaryUsage-basedWebβ€”β€”
FlexisipYesYesAGPL-3.0β€”β€”β€”0
FonosterYesYesMITβ€”β€”β€”0
FreeSWITCHYesYesMPL-2.0β€”β€”β€”0
JanusYesYesGPL-3.0β€”β€”β€”0
KamailioYesYesGPL-2.0β€”β€”β€”0
NotifoYesYesMITβ€”β€”β€”0
NovuYesYesMITβ€”β€”β€”0
ntfyYesYesApache-2.0, GPL-2.0β€”β€”β€”0
openSIPSYesYesGPL-2.0β€”β€”β€”0
OpenWAYesYesMITβ€”β€”β€”0
PushBitsYesYesISCβ€”β€”β€”0

FAQ

What is the best alternative to Twilio?

Community-recommended alternatives to Twilio include Flexisip, Fonoster, FreeSWITCH, Janus, Kamailio, and Notifo. Compare open source, self-hosting, pricing and platforms to choose.

Is there a free alternative to Twilio?

Yes. Flexisip, Fonoster, FreeSWITCH, Janus, Kamailio, and Notifo can be used for free; the open-source, self-hostable ones can be run on your own server at no cost.

Is there an open-source alternative to Twilio?

Yes. Open-source alternatives include Flexisip, Fonoster, FreeSWITCH, Janus, Kamailio, and Notifo.

Can I self-host an alternative to Twilio?

Yes. Flexisip, Fonoster, FreeSWITCH, Janus, Kamailio, and Notifo can run on your own server, so you keep control of your data.

Services in the same category that haven't been suggested as Twilio alternatives yet. If one fits, add it as an alternative.

  • MT
    Microsoft Teams

    Microsoft's workplace chat and video meeting app, integrated with Microsoft 365 files and calendars.

  • D
    Discord

    Voice, video and text chat platform organized into community servers and channels, popular with gamers and online communities.

  • Z
    Zoom

    Video conferencing platform for meetings, webinars and screen sharing, with team chat and phone add-ons.

  • I
    Intercom

    Customer service platform with live chat messenger, shared inbox, help center and the Fin AI agent.

  • M
    Mailchimp

    Intuit's email marketing platform for newsletters, audience management and automated campaigns.

  • S
    Slack

    Team messaging platform organized into channels, with direct messages, huddles, file sharing and thousands of integrations.

Know another Twilio alternative?

Once added, the community can vote and the best suggestions rise to the top.