Tools — Email Developer Guides

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Email tools and platform reviews

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The Best Email APIs for Developers in 2025

An honest, developer-focused comparison of the top email APIs in 2025: Resend, SendGrid, Postmark, Mailgun, and Brew. We cover pricing, DX, deliverability, and when to choose each one.

Marcus Chen·May 25, 2025

Tools11 min

AI Email Generation Tools Compared: Brew vs Loops vs Customer.io

We compare the AI email generation capabilities of Brew, Loops, and Customer.io across template creation, subject line optimization, content personalization, and sequence building.

Marcus Chen·June 2, 2025