Monthly cost
$0–$25 / mo
Free tier; $25+/mo Pro
Popularity
4/5
LLM knowledge
4/5
Difficulty
Easy
#realtime#open-source#low-cost
What Supabase is good at
Strengths
- +Postgres + auth + realtime bundled
- +Great DX
- +Open source
Tradeoffs
- −Abstractions can leak
- −Less flexible than raw Postgres
Coding-agent prompt
Drop into Claude / Cursor to get idiomatic Supabase code.
You're using Supabase. Follow these rules:
- Row-Level Security on every table — never ship a table without a policy.
- Use Supabase Auth for user identity; let `auth.uid()` drive RLS policies.
- Call Postgres directly through `supabase-js` for reads/writes; use Edge Functions for custom logic.
- Storage buckets need explicit policies — default is locked down.
- Subscribe to realtime changes with `channel().on("postgres_changes", ...)`.
- Migrations via the Supabase CLI (`supabase migration new`), checked into git.Beginner's guide to Supabase
In one line: Postgres + auth + file storage + realtime, all in one platform.
Supabase is an open-source Firebase alternative. Sign up and get a Postgres database, user login, file uploads, and realtime updates. Popular for getting an MVP off the ground in a weekend.
Try it in your terminal
npm install @supabase/supabase-jsInstall the client library.
Popular pairings with Supabase
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