Build PostgreSQL-backed auth, storage, real-time APIs, and edge functions on an open source Firebase alternative you can self-host with Docker Compose.
Run millions of AI agent sandboxes on shared infrastructure with 10x higher density than standard container runtimes. Apache 2.0, Kubernetes-native.
About substrate
substrate is an open source tool in Cloud & Hosting. Use it as a free, self-hostable alternative to E2B, Modal and Daytona.
Run millions of AI agent sandboxes on shared infrastructure with 10x higher density than standard container runtimes. Apache 2.0, Kubernetes-native.
Licensed under Apache-2.0 with 5,600 stars on GitHub.
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