Does Supabase accept disposable email addresses for account creation?

Yes — Supabase's email signup accepts most disposable addresses. GitHub OAuth is also available and is the recommended path for most developers since it integrates with Supabase's CLI and deployment tools.

Can I use Supabase's free plan without giving my real email?

Yes — Supabase's generous free tier (2 projects, 500MB database, 50,000 monthly active users in your projects' auth) is fully accessible with a temp-mail account. The email type doesn't affect free plan features.

What is the difference between Supabase email signup and GitHub OAuth?

Both create a Supabase account. GitHub OAuth additionally links your GitHub identity, enabling smoother CLI authentication and integration with Supabase's GitHub Actions workflows. For pure dashboard use, email signup is sufficient.

Does Supabase send project usage alerts by email?

Yes — Supabase emails warnings when you approach free plan limits (database size, bandwidth). For production projects, use a stable address so you receive these alerts before services are paused.

Temp Mail for Supabase: Signing Up with a Disposable Email

Supabase is the open-source Firebase alternative — here's how its email signup handles a temporary inbox address.

Supabase is an open-source Firebase alternative offering a Postgres database, authentication, storage, and edge functions. Its sign-up flow supports GitHub OAuth and direct email registration. Disposable addresses work for the email path — Supabase sends a verification link and activates your account immediately after you click it. GitHub OAuth is generally the preferred route for developers since it integrates with Supabase's CLI and deployment tools.

How to sign up for Supabase with a temporary email

Open inbox Me and copy your disposable email address.
Go to supabase.com and click Start your project or Sign Up. Choose the email option.
Enter your temp address and a password. Submit the form.
Supabase sends a confirmation email. Check inbox Me — usually arrives within 30 seconds.
Click the link to confirm your email and land on the Supabase dashboard.
Create a new project and choose a database region to get started.

Common verification blockers

Supabase email verification and disposable address considerations

GitHub OAuth is more practical: Supabase's CLI, GitHub Actions integration, and deployment features work most smoothly when your account is connected to GitHub. Email-only accounts can still use the dashboard but miss CLI conveniences.
Project billing: Free projects include limited database size and compute. Usage alerts and billing emails go to your registered address — use a real email for production Supabase projects.
Domain filtering: Supabase does not aggressively block disposable domains. If yours is flagged, a fresh inbox Me address resolves it.

Get a temp email to try Supabase

Get a free temporary email →

Free tools

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Frequently asked questions

Does Supabase accept disposable email addresses for account creation?: Yes — Supabase's email signup accepts most disposable addresses. GitHub OAuth is also available and is the recommended path for most developers since it integrates with Supabase's CLI and deployment tools.
Can I use Supabase's free plan without giving my real email?: Yes — Supabase's generous free tier (2 projects, 500MB database, 50,000 monthly active users in your projects' auth) is fully accessible with a temp-mail account. The email type doesn't affect free plan features.
What is the difference between Supabase email signup and GitHub OAuth?: Both create a Supabase account. GitHub OAuth additionally links your GitHub identity, enabling smoother CLI authentication and integration with Supabase's GitHub Actions workflows. For pure dashboard use, email signup is sufficient.
Does Supabase send project usage alerts by email?: Yes — Supabase emails warnings when you approach free plan limits (database size, bandwidth). For production projects, use a stable address so you receive these alerts before services are paused.