Keplars

Email Infrastructure for Modern Product Teams

5.0•3 reviews•

306 followers

Email Infrastructure for Modern Product Teams

5.0•3 reviews•

306 followers

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Email marketing

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.

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Keplars Launches

Keplars Marketing EmailsTrack, target & send campaigns - pay by volume, not contacts

Launched on April 29th, 2026

KeplarsEmail Infrastructure for Modern Product Teams

Launched on April 1st, 2026

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20d ago

We are launching again! Keplars 2nd Launch

Our 2nd Product Hunt Launch tomorrow, April 29.

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5.0

Based on 3 reviews

Review Keplars?

Reviews

Most Informative

•1 review

What's great

Keplers is fantastic because it finally fixes the pain every builder faces with email. Instead of wrestling with DNS records, deliverability issues, or clunky dashboards, you get a clean, developer‑first workflow that just works. The setup is insanely fast, the API is straightforward, and the delivery speed is genuinely impressive. What stands out most is how transparent everything feels; every email, every log, every event is visible in real time. It is the kind of tool that removes friction instead of adding it, which is exactly what you want when you’re building and shipping fast.

What needs improvement

Keplars is already solid, but there are a few areas where it could get even better. I’d love to see deeper analytics around engagement, like device breakdowns or more advanced segmentation for marketing emails. A few more native integrations with tools like Zapier, Notion, or Airtable would also make onboarding smoother for non‑technical teams. And while the dashboard is clean, adding more customization options for templates and workflow automation would take it to the next level. None of these are blockers, but they’re the kind of refinements that would make an already great product feel even more complete.

vs Alternatives

I have used the usual suspects: SendGrid, Mailgun, Resend, Postmark, and they all work, but they come with friction. Either the setup is slow, the dashboards feel dated, or deliverability becomes a guessing game. What made Keplars stand out is how quickly you can go from zero to sending real emails without touching DNS or wrestling with SPF/DKIM. The OAuth sending option alone removes hours of setup pain. Add in the clean API, real‑time logs, and genuinely fast delivery, and it just felt like the tool that respects a builder’s time. It’s the first email service that feels designed for people who want to ship fast without sacrificing reliability

Ratings

Ease of use

Reliability

Value for money

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16 views20d ago

•1 review

What's great

It solves a very real problem most email tools ignore

You actually get clear visibility into what happens after sending not just basic metrics

Also love how transactional and marketing emails are handled in one place with simple workflows

What needs improvement

Would be great to see even more advanced analytics insights as the product evolves

vs Alternatives

I’ve looked at other tools before

They are powerful but either too developer focused or feel fragmented

Keplars feels more balanced with better visibility and an easier overall flow

Ratings

Ease of use

Reliability

Value for money

Customization

Report

28 views20d ago

•1 review

What's great

Clean product, clear thinking behind it. Contact-based pricing is one of those things that sounds fine until your list grows and suddenly you're paying for 50,000 contacts when only 8,000 of them have opened anything in the last six months. Paying per email sent feels more honest. Well done.

vs Alternatives

The combined transactional and marketing setup in one place also removes a genuine headache for smaller teams that don't want to maintain two separate integrations

Ratings

Ease of use

Reliability

Value for money

Customization

Report

20 views20d ago

•1 review

What's great

What needs improvement

vs Alternatives

Ratings

Ease of use

Reliability

Value for money

Customization

Report

16 views20d ago

•1 review

What's great

It solves a very real problem most email tools ignore

You actually get clear visibility into what happens after sending not just basic metrics

Also love how transactional and marketing emails are handled in one place with simple workflows

What needs improvement

Would be great to see even more advanced analytics insights as the product evolves

vs Alternatives

I’ve looked at other tools before

They are powerful but either too developer focused or feel fragmented

Keplars feels more balanced with better visibility and an easier overall flow

Ratings

Ease of use

Reliability

Value for money

Customization

Report

28 views20d ago

•1 review

What's great

vs Alternatives

The combined transactional and marketing setup in one place also removes a genuine headache for smaller teams that don't want to maintain two separate integrations

Ratings

Ease of use

Reliability

Value for money

Customization

Report

20 views20d ago