Dev tools · alternatives · 2026
24 alternatives to Transactional Email Templates by Postmark
Open source email templates for use in your SaaS app.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Transactional Email Templates by Postmark launched in 2018; newer entries below may have overtaken it.
- 1
Curated email templates from leading SaaS companies
2021 · saasemailtemplates.io · its alternatives →
- 2
Responsive HTML email templates for SaaS startups
2017 · htmlemailtemplates.net · its alternatives →
- 3
Free (do whatever you want) responsive email templates
2016 · emailoctopus.com · its alternatives →
- 4
Enter your URL for 14 branded email templates for free 💌
2019 · mailjet.com · its alternatives →
- 5
HTML Email▲783Responsive HTML email templates for startups & developers
2016 · htmlemail.io · its alternatives →
- 6
Steal the emails that have generated $100+ million
2021 · million-dollar-emails.com · its alternatives →
- 7
A free React/NodeJS SaaS template for quick idea execution
2023 · github.com · its alternatives →
- 8
- 9
30+ graphic templates for SaaS social media
2020 · saasframe.io · its alternatives →
- 10
Hundreds of free, responsive email templates. Pick and edit.
2017 · its alternatives →
- 11
Curated directory of 40+ in-app messaging templates for SaaS
2021 · templates.helppier.com · its alternatives →
- 12
Monitor your transactional email from anywhere.
2018 · apps.apple.com · its alternatives →
- 13
- 14
Email templates for your important relationships
2015 · its alternatives →
- 15
Sidemail 2.0▲306Hi all! I'm Kristyna, maker of Sidemail. I'd love to share with you what we've been building. We built Sidemail because sending emails from a SaaS app was way harder than it should be. Sidemail is made for developers and teams that want one simple place to handle SaaS emails with reliable delivery and no bloat. It has: - Everything for creating, managing and delivering SaaS emails in one platform, - Easy-to-use email API for sending password resets, receipts, etc. - Messenger for writing product updates and newsletters, - Email automations for onboarding and lifecycle flows, - Fast email…
Nov 2025 · sidemail.io · its alternatives →
- 16
Create your free email signature with our easy-to-use tool.
2019 · hubspot.com · its alternatives →
- 17
PLG Templates▲110Templates for emails, analytics, and playbooks for SaaS
2023 · integrasystems.co.in · its alternatives →
- 18
Responsive email templates with drag and drop editing - free
2019 · playground.dyspatch.io · its alternatives →
- 19
Startup Emails▲434Responsive HTML email templates for startups
2017 · htmlemailtemplates.net · its alternatives →
- 20
Create & customize Gmail templates that live in your inbox 💌
2017 · templatesforgmail.com · its alternatives →
- 21
Responsive, Free, and Community Driven
2014 · dyspatch.io · its alternatives →
- 22
600+ free no-code HTML email templates
2021 · unlayer.com · its alternatives →
- 23
Letterbox▲244Clean HTML email templates for creating stylish newsletters
2021 · letterbox.craftwork.design · its alternatives →
- 24
Email Signature▲110Fast and easy way to create professional email signatures
2018 · emailsignature.org · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →