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Inbox Archive vs CodeOutbox

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

Inbox Archive compared with CodeOutbox
DetailInbox Archive logo Inbox ArchiveCodeOutbox logo CodeOutbox
What it doesReal brand email examples as live HTML with platform, tracking and promo code data Email marketing for developers. Paste a form, no backend, write in Markdown, run from your coding agent.
StageStartup Not given
Founded2026 Not given
Based inNot given Not given
Pricing modelFree Freemium
PricingFree with no paid tier Not given
Key features
  • Live HTML rendering of emails as received
  • ESP and tracking technology detection
  • Browse by campaign type, brand, industry and platform
  • Promo code history and tracking
  • Brand following and RSS feeds
  • DMARC, SPF and BIMI authentication data
  • Collections and likes for account holders
  • 8,517 campaigns from 231 brands continuously archived
  • No account required to browse all content
  • 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
  • Automatically captured as emails arrive unedited
  • 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)18 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)70
Citation Flow (Majestic)250
Referring domains (Majestic)220

4 details filled in for both companies.

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