Edge Functions

Limits

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)
  • Maximum Function Size: 20MB (After bundling using CLI)
  • Maximum log message length: 10,000 characters
  • Log event threshold: 100 events per 10 seconds

Other limits & restrictions

  • Outgoing connections to ports 25 and 587 are not allowed.
  • Serving of HTML content is only supported with custom domains (Otherwise GET requests that return text/html will be rewritten to text/plain).
  • Web Worker API (or Node vm API) are not available.
  • Node Libraries that require multithreading are not supported. Examples: libvips, sharp.