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Dev tools · April 24, 2014

OptKit – Enterprise Level Conversion Rate Optimization Kit

Email subscriber management powered by Cloudflare's send_email binding. SQL-backed, queue-powered campaigns, admin dashboard — zero external services. - acoyfellow/optkit

OptKit – Enterprise Level Conversion Rate Optimization Kit launched on April 24, 2014 with 13 votes and more than 75% of that year's launches. The site was still online in September 2026, 12 years on.

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In plain words

OptKit is an email subscriber management system designed for enterprises that want to optimize conversion rates. Built on Cloudflare's send_email binding, it uses SQL databases and queue-based systems to manage campaigns without relying on external services. The platform includes an admin dashboard for managing subscribers and campaigns, making it suitable for development teams seeking an independent, self-hosted email solution.

written from the facts on this page · September 2026

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