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Keplars
Email Infrastructure for Modern Product Teams
Keplars powers transactional emails with full delivery visibility, sandbox testing, and seamless scale - with strong developer experience, enabling you to send emails in under 5 clicks, and usage-based pricing.
Top comment
Hey everyone, Thought I’d share a bit of context behind why we started building Keplars. While working on a product, I needed to set up transactional emails - and that’s where things started to feel unnecessarily complicated. Most tools required separate effort just to get started - configuration, setup, figuring out how everything works - all before you could actually use it. It felt like I had to pause building the product to deal with email infrastructure. So I built something simple for myself. In one night, I put together a basic working setup - just a single page, everything left-aligned, nothing fancy, but emails were being sent. But once it worked, I got really drawn into it. I kept refining it, improving reliability, simplifying the workflow, and adding visibility into what actually happens after sending an email. Over time, that small solution evolved into Keplars. The idea has stayed the same - reduce friction, make email easy to start with, and make it feel like a natural part of the product, not a separate system.
About Keplars on Product Hunt
“Email Infrastructure for Modern Product Teams”
Keplars launched on Product Hunt on April 1st, 2026 and earned 115 upvotes and 10 comments, placing #14 on the daily leaderboard. Keplars powers transactional emails with full delivery visibility, sandbox testing, and seamless scale - with strong developer experience, enabling you to send emails in under 5 clicks, and usage-based pricing.
On the analytics side, Keplars competes within Email, Marketing and SaaS — topics that collectively have 540.8k followers on Product Hunt. The dashboard above tracks how Keplars performed against the three products that launched closest to it on the same day.
Who hunted Keplars?
Keplars was hunted by Debojyoti Singha. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Keplars including community comment highlights and product details, visit the product overview.