supabase/edge-runtime

A server based on Deno runtime, capable of running JavaScript, TypeScript, and WASM services.

Rust

992

1,130 commits

updated Oct 1, 2026

See the code

See what people are saying

README

Supabase Edge Runtime

A web server based on Deno runtime, capable of running JavaScript, TypeScript, and WASM services. Edge Runtime is built and maintained by the Supabase team. For more details, read the intro blog post.

You can use it to:

  • Locally test and self-host Supabase's Edge Functions (or any Deno Function)
  • As a programmable HTTP Proxy: You can intercept / route HTTP requests

WARNING: Beta Software. There will be breaking changes to APIs / Configuration Options

Architecture

Sequence diagram of Edge Runtime request flow

The edge runtime can be divided into two runtimes with different purposes.

  • Main runtime:
    • An instance for the main runtime is responsible for proxying the transactions to the user runtime.
    • The main runtime is meant to be an entry point before running user functions, where you can authentication, etc. before calling the user function.
    • Has no user-facing limits
    • Has access to all environment variables.
  • User runtime:
    • An instance for the user runtime is responsible for executing users' code.
    • Limits are required to be set such as: Memory and Timeouts.
    • Has access to environment variables explictly allowed by the main runtime.

Developers

To learn how to build / test Edge Runtime, visit DEVELOPERS.md

Contributions

We welcome contributions to Supabase Edge Runtime!

To get started either open an issue on GitHub or drop us a message on Discord

Edge Runtime follows Supabase's Code of Conduct.

deno
edge-computing
edge-functions
rust
web-server

supabase/edge-runtime

A server based on Deno runtime, capable of running JavaScript, TypeScript, and WASM services.

Rust

992

1,130 commits

updated Oct 1, 2026

See the code

See what people are saying

README

Supabase Edge Runtime

A web server based on Deno runtime, capable of running JavaScript, TypeScript, and WASM services. Edge Runtime is built and maintained by the Supabase team. For more details, read the intro blog post.

You can use it to:

  • Locally test and self-host Supabase's Edge Functions (or any Deno Function)
  • As a programmable HTTP Proxy: You can intercept / route HTTP requests

WARNING: Beta Software. There will be breaking changes to APIs / Configuration Options

Architecture

Sequence diagram of Edge Runtime request flow

The edge runtime can be divided into two runtimes with different purposes.

  • Main runtime:
    • An instance for the main runtime is responsible for proxying the transactions to the user runtime.
    • The main runtime is meant to be an entry point before running user functions, where you can authentication, etc. before calling the user function.
    • Has no user-facing limits
    • Has access to all environment variables.
  • User runtime:
    • An instance for the user runtime is responsible for executing users' code.
    • Limits are required to be set such as: Memory and Timeouts.
    • Has access to environment variables explictly allowed by the main runtime.

Developers

To learn how to build / test Edge Runtime, visit DEVELOPERS.md

Contributions

We welcome contributions to Supabase Edge Runtime!

To get started either open an issue on GitHub or drop us a message on Discord

Edge Runtime follows Supabase's Code of Conduct.

deno
edge-computing
edge-functions
rust
web-server

Significant stargazers

(top 24 of 25)

罗泽轩

982 followers · starred Apr 2025

Kamil Ogórek

351 followers · starred Feb 2024

Haoqun Jiang

2,482 followers · starred Oct 2024

Daniel González Lopes

98 followers · starred Dec 2024