Directory
React Email
React email template components
FreeEmail, forms & notificationsreact.email
What it is
Open-source component library for building HTML emails in React and TypeScript, maintained by Resend. Ships unstyled primitives (Html, Button, Container, Section, Tailwind) plus a local preview server, link linter, spam-score check and client compatibility checker. Renders to HTML or plain text for any provider.
Why it earns a slot
Stops you hand-writing nested-table email HTML in 2026. Write JSX, preview it at
localhost:3000, then render() to HTML and hand it to Resend, Postmark or SES.Know before you commit
Renders cleanly in Gmail and Apple Mail, but Outlook on Windows still uses the Word rendering engine — preview there before shipping anything with fancy layout.
Getting started
npx create-email@latest
Neighbourhood
How React Email sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.
Also in Email, forms & notifications
Amazon SES
aws.amazon.comNot yet swept
Cheapest bulk email (AWS)
PaidEmail, forms & notifications
A la carte $0.10 per 1,000 emails. Essentials plan $0.16 per 1,000. Outbound attachment data $0.12/GB, managed dedicated IPs $15/mo. New AWS accounts get up to $200 in Free Tier credits.
Open dossier
Basin
usebasin.comNot yet swept
Form backend with spam blocking
Free tier + paidEmail, forms & notifications
Free: 50 submissions/mo, 1 form, 30-day retention. Starter $12.50/mo (250), Growth $24.17/mo (1,000, unlimited forms), Pro $30.62/mo (5,000), Agency $81.25/mo (25,000), billed yearly.
Open dossier
Courier
courier.comNot yet swept
Multi-channel notification API
Free tier + paidEmail, forms & notifications
Free Developer: 10,000 sends/mo. Business is usage-based at $0.005 per send beyond that. Enterprise is custom with volume discounts.
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Discord Webhooks
docs.discord.comNot yet swept
Community alerts via webhook
FreeEmail, forms & notifications
Free. No bot user, OAuth or authentication required; standard Discord API rate limits apply per webhook.
Open dossier