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Emails for Supabase vs CodeOutbox

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Emails for Supabase compared with CodeOutbox
Detail Emails for SupabaseCodeOutbox logo CodeOutbox
What it doesBranded, production-ready Supabase auth email templates from your website URL Email marketing for developers. Paste a form, no backend, write in Markdown, run from your coding agent.
StageMVP Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Freemium
PricingFree during early access. Brand pack coming soon at $18 one-time per brand. Not given
Key features
  • Live preview with dark-mode toggle
  • Real GoTrue merge tags wired in automatically
  • Inlined CSS tested across email clients
  • Per-field edits and copy customization
  • One-click export to Supabase dashboard
  • Cross-client HTML compatibility for Outlook and other email clients
  • Write campaigns in Markdown files
  • Run broadcasts from coding agent over MCP
  • Double opt-in on by default
  • Automatic domain authentication with DNS setup
  • Export subscriber data to CSV or JSON
  • Lists and campaigns stored as repository files
  • 30-day money-back guarantee on paid plans
  • SPF, DKIM, DMARC authentication
  • One-click unsubscribe and bounce suppression
What makes it different
  • Only tool built specifically for Supabase auth emails, not a generic email builder
  • Automatic brand extraction from your website in minutes
  • Real merge tags pre-wired and ready to paste directly into Supabase dashboard
  • Cross-client tested HTML built by email experts
  • Completely free during early access
  • Developer-first workflow with no dashboard required—set up forms, manage lists, and send campaigns entirely from your coding agent and repository
  • More subscribers at lower entry price than competitors: 3,000 subscribers at $9/mo vs Mailchimp ~$13 for 500 or Kit ~$25 for 1,000
  • Completely free tier with 100 subscribers and no credit card or trial clock
  • Version-controlled campaigns as Markdown files reviewed in pull requests
  • Open source platform with no backend infrastructure to maintain
Community votes00
DR (Domain Rating by Ahrefs)1 −1 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)30
Citation Flow (Majestic)100
Referring domains (Majestic)10

4 details filled in for both companies.

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