Is it safe to expose my Supabase anon key?

Yes — the anon key is designed to be public and ships in your frontend. Your protection comes from row-level security policies, not from keeping the anon key secret. The service-role key, however, must never be exposed.

How do I check if my Supabase tables are public?

Use our free Supabase RLS checker. Paste your project URL and anon key and it reports which tables return data without authentication.

Is Supabase HIPAA compliant?

Supabase offers a HIPAA-compliant tier on its paid plans with a signed BAA, but compliance is a shared responsibility — you still have to configure RLS, access controls and logging correctly. The platform being capable of HIPAA does not make your specific app compliant.

Is Supabase safe? How to secure your Supabase app

Supabase is secure by design — but only if you turn on and correctly configure row-level security. Most exposure comes from skipping that step.

Short answer

Supabase is a well-built, secure platform. Nearly every Supabase data breach traces back to one mistake: row-level security is disabled or written too permissively, so the public anon key can read entire tables. The anon key is meant to be public — your security comes from RLS, not from hiding the key.

Supabase is a secure, well-engineered platform, and the anon (public) key is designed to be exposed in your frontend. Nearly every Supabase data breach comes down to a single mistake: row-level security (RLS) is disabled or written too permissively, so anyone with your anon key can read entire tables. Your protection comes from RLS policies, not from keeping the anon key secret. If you only do one thing before launch, confirm that RLS is enabled and correctly scoped on every table that holds user data.

Supabase security at a glance

Platform type: Open-source backend (Postgres, auth, storage)
Most common risk: RLS disabled or set to 'allow all'
Is the anon key secret?: No — it's public by design; RLS is the control
Service-role key: Must never reach the browser — it bypasses RLS
How to check: Run the free Supabase RLS checker

The most common Supabase security risks

RLS disabled on a table

Any table without RLS enabled is fully readable (and often writable) by anyone with your anon key — which ships in your frontend.

Overly permissive policies

A policy of 'allow all' or 'true' technically enables RLS while leaving the data wide open. RLS being 'on' is not the same as RLS being correct.

Service-role key in the client

The service-role key bypasses RLS entirely. If it reaches the browser or a public repo, your whole database is exposed.

How to secure your Supabase app

Check your Supabase app in 60 seconds

Paste your deployed URL for a free launch-readiness scan, then get a human-reviewed, insured clearance before you launch.

Supabase security FAQ

Is it safe to expose my Supabase anon key?: Yes — the anon key is designed to be public and ships in your frontend. Your protection comes from row-level security policies, not from keeping the anon key secret. The service-role key, however, must never be exposed.
How do I check if my Supabase tables are public?: Use our free Supabase RLS checker. Paste your project URL and anon key and it reports which tables return data without authentication.
Is Supabase HIPAA compliant?: Supabase offers a HIPAA-compliant tier on its paid plans with a signed BAA, but compliance is a shared responsibility — you still have to configure RLS, access controls and logging correctly. The platform being capable of HIPAA does not make your specific app compliant.