React Email 6.0 by Resend

Resend dropped React Email 6.0 and honestly, embedding a full visual email editor straight into your app with just a few lines of code is the move — especially when the output actually renders across Gmail, Outlook, and whoever else without you having to debug it for hours. The new auth and e-commerce template packs are solid for real production workflows, and the composable API lets you build custom blocks like inline charts or CDN image uploads, which is the kind of flexibility most devs actually need. With 2M weekly npm downloads and nearly 200 open-source contributors, this is a project with real traction — not another half-baked developer tool collecting dust on GitHub. If you're building in the React ecosystem and need email functionality that doesn't feel like a compromise, this is worth your attention.