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Open Source Push Notification Services using CSS

A curated collection of the best open source services for sending push notifications to devices. using CSS.

Novu

Multi-channel notification infrastructure for apps

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39,297
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4,353
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1 day ago

Open-source platform for building in-app, email, push, SMS, and chat notifications with a unified API, workflow engine, and embeddable inbox component.

Open Source Alternative to:

Customer.io

useSend

Pay per email sent, not for contact storage

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4,447
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387
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23 hours ago

Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.

Open Source Alternative to:

Resend

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