---
id: 'functions-limits'
title: 'Limits'
description: "Limits applied Edge Functions in Supabase's hosted platform."
subtitle: "Limits applied Edge Functions in Supabase's hosted platform."
---

## Runtime limits

- Maximum Memory: 256MB
- Maximum Duration (Wall clock limit):
  This is the duration an Edge Function worker will stay active. During this period, a worker can serve multiple requests or process background tasks.
  - Free plan: 150s
  - Paid plans: 400s
- Maximum CPU Time: 2s (Amount of actual time spent on the CPU per request - does not include async I/O.)
- Request idle timeout: 150s (If an Edge Function doesn't send a response before the timeout, 504 Gateway Timeout will be returned)

## Platform limits

- Maximum Function Size: 20MB (After bundling using CLI)
- Maximum no. of Functions per project:
  - Free: 100
  - Pro: 500
  - Team: 1000
  - Enterprise: Unlimited
- Maximum log message length: 10,000 characters
- Log event threshold: 100 events per 10 seconds

### Secrets

- Maximum number of secrets per project: **100**
- Secret name length: up to **256** characters
- Maximum secret size: **48 KiB** (**24,576** characters)
- Names must NOT start with the prefix `SUPABASE_` (this prefix is reserved).

## Other limits & restrictions

- Outgoing connections to ports `25` and `587` are not allowed.
- Serving of HTML content is only supported with [custom domains](/docs/reference/cli/supabase-domains) (Otherwise `GET` requests that return `text/html` will be rewritten to `text/plain`).
- Web Worker API (or Node `vm` API) are not available.
- Static files cannot be deployed using the API flag. You need to build them with [Docker on the CLI](/docs/guides/functions/quickstart#step-6-deploy-to-production).
- Node Libraries that require multithreading are not supported. Examples: [`libvips`](https://github.com/libvips/libvips), [sharp](https://github.com/lovell/sharp).
