Keplars powers transactional emails and marketing 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.
This is the 2nd launch from Keplars. View more
Keplars Marketing Emails
Launched this week
Keplars Marketing Emails lets you run campaigns with full tracking, audience targeting, and a clean API-first workflow. Setup under few clicks.
Track deliveries, opens, clicks, and timelines in real time.
Pricing is volume-based, not contact-based - with custom plans as you scale. Monitor and protect your email reputation to improve deliverability.
Built for developers and modern teams to launch, manage, and optimize campaigns faster without the usual tool bloat.
Free Options
Launch Team
Keplars
Keplars
Finally out!
Been a crazy journey taking this from a rough idea to something people are actually using today.
We’ve spent a lot of time trying to simplify what’s usually a painful space - email setup, tracking, campaigns and make it feel way more straightforward.
Seeing real usage, feedback, and even small spikes already… hits different.
Still a lot more to build, but this is a big step for us.
Would really love to hear what you all think and what we should improve next.
Congrats on the launch! As a marketing lead at a startup, I'm constantly caught between two worlds — I need our transactional emails (welcome flows, password resets, etc.) to actually land in the inbox, but I also need enough visibility to know when something breaks without bothering the dev team every time. The "full delivery visibility" piece is what caught my eye. Can I see bounce reasons broken down by email provider - like whether Gmail is treating us differently than Outlook? That's the insight that would actually let me act on delivery issues myself instead of guessing.
Keplars
Hey @yotam_dahan, really appreciate the detailed feedback. This is exactly the kind of use case we're building for.
You're right on the money. We actually already capture provider-level bounce reasons on our end (Gmail, Outlook, etc.), but right now we surface generic bounce data to users for privacy reasons. Breaking it down by provider with specific bounce codes is something we can absolutely add. It's more of a product decision than an infrastructure gap.
I'll add this to our roadmap. Would be super helpful to stay in touch as we ship it. Would love to have you try it early.
Keplars
@yotam_dahan +1 to this - this is exactly the kind of visibility we want to unlock.
A lot of teams end up guessing when something breaks, especially across providers. Making that clearer (and actionable) is something we’re actively thinking about.
Would love to keep you in the loop as we build this out.
@ananya_452 Been trying this out for a bit and the experience is quite smooth. Setup didn’t take much time, and having both transactional + marketing emails in one place is convenient.
Also liked the tracking, you can actually understand what’s happening instead of just seeing high-level numbers.
Keplars
@abhiranjan_kumar2 Thanks for trying it out 🙌
Good to hear the setup felt easy - that was one of the main things we wanted to fix.
And yeah, the tracking part… we’ve felt that pain ourselves with other tools, so tried to make it a bit more clear and useful.
Would love to hear how it feels as you use it more.
Keplars
@abhiranjan_kumar2 Really appreciate this, thanks for sharing 🙌
StreamAlive - Interactive PPT slides
Hi @debojyoti452 congrats on your second launch! I thought this product would have got a bit more traction. I love the name of your product (hello, astronomy), and I love your website design. Who is responsible for these two things?
Keplars
@peterclaridge Hey Peter, really appreciate that 🙌
It’s just the two of us - I handle the engineering side (all the tech and features), and my co-founder @ananya_452 takes care of product design and marketing. Hope to expand our team soon.
And yeah, the name 😄 I’ve always been a big fan of space and anything related to the cosmos, so “Keplars” just kind of came out naturally. Didn’t overthink it too much - just went with what felt right.
StreamAlive - Interactive PPT slides
@ananya_452 @debojyoti452 One more question: What would you say to someone looking your product vs resend.dev for transactional emails (I've been using resend.dev for my hobby projects so far).
Keplars
@peterclaridge Keplars provides Clarity, full visibility, better UX, and a built-in editor (code + drag & drop) https://enceladas.com , also pricing is super flexible here which you will not find anywhere else. Just one thing to say try Keplars once, and it will be hard to switch back to anywhere else.
Keplars
@peterclaridge After using Keplars, everything else feels a bit more complicated. As we don’t realize how much friction we had… until someone removes it. Our email editor has a special highlight upon it : it's enceladas.com