Growth · alternatives · 2026

24 alternatives to Darwin Mail

Enhance Gmail to get your Google Inbox features back.

Darwin Mail is a Gmail enhancement tool that restores and expands inbox functionality with features like reminders, email snoozing, message templates, undo send, dark mode, and custom backgrounds. It's designed for… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Darwin Mail launched in 2019; newer entries below may have overtaken it.

1. 1IB
   I Built Darwin Mail as a Google Inbox Replacement▲218

   2019 · darwinmail.app · its alternatives →

2. 2IM
   I miss Google Inbox and built a replacement▲40

   2019 · darwinmail.app · its alternatives →

3. 3
   New Gmail▲935

   The new version of Gmail web

   2018 · blog.google · its alternatives →

4. 4
   Inbox by Google▲1,147

   Next generation inbox

   2014 · google.com · its alternatives →

5. 5
   Signal – Edit emails in your Gmail inbox▲151

   2013 · trysignal.com · its alternatives →

6. 6
   Mailwarm 2.0▲676

   The email warmup tool, upgraded for deliverability.

   Jun 2026 · mailwarm.com · its alternatives →

7. 7
   Superinbox▲531

   Email vibing in your Gmail / Outlook

   Oct 2025 · superinbox.com · its alternatives →

8. 8
   Google Postmaster▲252

   High volume email tools from Google

   2015 · gmail.com · its alternatives →

9. 9
   InboxSDK▲508

   First usable API to write Gmail Apps for 1B active users

   2015 · inboxsdk.com · its alternatives →

10. 10
    InboxPro▲174

    Boost your productivity & turn Gmail into a powerful machine

    2022 · inboxpro.io · its alternatives →

11. 11
    HTML Email▲783

    Responsive HTML email templates for startups & developers

    2016 · htmlemail.io · its alternatives →

12. 12
    Email Warm-Up Tool by Reply▲311

    Make sure your emails land in the inbox, not spam

    2021 · reply.io · its alternatives →

13. 13
    Mailmeteor 2.0▲301

    Send auto follow-up emails with Gmail

    2022 · mailmeteor.com · its alternatives →

14. 14
    Forage Mail▲306

    AI that solves email overwhelm. Not another mail app.

    2025 · foragemail.com · its alternatives →

15. 15
    MailMood▲282

    From casual email to corporate speak — in one click

    2025 · chromewebstore.google.com · its alternatives →

16. 16
    NudgeForMe▲286

    AI follow-up agent for missed email opportunities

    Aug 2026 · nudgeforme.com · its alternatives →

17. 17
    Ugly Email▲421

    See if an email is being tracked before you open it in Gmail

    2015 · uglyemail.com · its alternatives →

18. 18
    Hello Inbox▲283

    Hey HN, I built an email deliverability SaaS with a RAG system. It's trained on all my knowledge and hundreds of real deliverability use cases from 4+ years experience as an Email Deliverability Specialist on Upwork. It solves a frustration problem a lot of businesses are experiencing. I'm looking for feedback so let me know in the comments.

    Aug 2026 · helloinbox.email · its alternatives →

19. 19
    Lavender▲233

    A complete AI toolkit for amazing 1:1 emails in your inbox.

    2020 · lavender.ai · its alternatives →

20. 20
    Silent Inbox for Gmail▲251

    Receive unimportant emails and newsletters on your schedule

    2020 · workspace.google.com · its alternatives →

21. 21
    Gmail in the Gemini Era▲371

    Ask your inbox anything to get summaries, drafts, & more

    Jan 2026 · blog.google · its alternatives →

22. 22
    Warmbox▲383

    Warm-up your inbox and never land in spam

    2021 · warmbox.ai · its alternatives →

23. 23
    Ovy▲268

    One click AI-generated email replies for Gmail

    2022 · chromewebstore.google.com · its alternatives →

24. 24
    Email Testing By Inbox Pirates▲355

    Preview, analyze & test emails with one click

    2022 · inboxpirates.com · its alternatives →

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 →