Is your Supabase anon key safe in the frontend? Yes. Here's what isn't.
This story is from 2026-10-18. It is preserved in the archive; the latest stories are on the live feed.
If you've built an app with Lovable, Bolt, v0 or Cursor on top of Supabase, you've probably opened DevTools, seen a long eyJ... key in your JavaScript, and felt your stomach drop. Good news first: that key is supposed to be there. Here's what it actually does, and the four things that do leak data…
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- 2026-10-18 13:36 · DEV Community — AI
Is your Supabase anon key safe in the frontend? Yes. Here's what isn't.