Alternatives

Products that do what Cleanbox does

Email aliases, smart filtering, and AI routing in one tool.

1. 1
   PureBox.ai▲139

   Review-first AI cleanup for your real Gmail inbox.

   Jul 2026 · purebox.ai

2. 2
   Superinbox▲531

   Email vibing in your Gmail / Outlook

   Oct 2025

3. 3
   Inbox Zero▲821

   Clean up your inbox in minutes, open source

   2023 · getinboxzero.com

4. 4
   Upstream▲977

   The inbox designed for humans and agents

   Jun 2026 · upstream.do

5. 5
   AI Emaily▲165

   Your AI inbox that writes like you + replies on autopilot

   Jul 2026 · aiemaily.com

6. 6
   mailX by mailwarm▲602

   Email deliverability toolkit for humans and AI agents

   May 2026 · themailx.com

7. 7
   Warmbox▲387

   Warm-up your inbox and never land in spam

   2021

8. 8
   KleanMail Free Email Verifier▲177

   Emails inboxed, always.

   2022

9. 9
   Clean Inbox for Gmail™▲150

   A privacy-oriented Gmail add on against marketing email

   2024

10. 10
    Superflows▲476

    AI assistant for email - get to inbox zero faster

    2023

11. 11
    AgentMail▲275

    Email Inboxes for AI Agents

    Apr 2026 · agentmail.to

12. 12
    Cleanlist AI▲273

    Natural-language prospecting: find, enrich and sync leads.

    Jul 2026 · cleanlist.ai

13. 13
    ZeroInbox.ai▲130

    AI email organizer

    2024

14. 14
    Unspam AI▲385

    See how your subscribers read your emails with our AI inbox

    2024

15. 15
    Folderly AI▲235

    AI-generated emails that hit the inbox and get replies

    2025

16. 16
    Supamail AI▲214

    Turn Mail Inbox Chaos Into Clarity

    Oct 2025

17. 17
    Lavender▲233

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

    2020

18. 18MS
    Make senders work to get into your inbox▲44

    Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…

    Jul 2026 · captchainbox.com

19. 19
    MailAdept by mailwarm▲287

    AI Agents & Email deliverability experts on your team

    Jul 2026 · mailadept.com

20. 20
    Deliveryman.ai▲186

    Cold email infrastructure on autopilot without Gsuite

    Jun 2026 · deliveryman.ai

21. 21
    Warmup Inbox▲204

    Free email spam checker & inbox placement tester

    2023

22. 22
    NudgeForMe▲286

    AI follow-up agent for missed email opportunities

    Aug 2026 · nudgeforme.com

23. 23
    Atomic Mail Agentic▲268

    Let your agents read, send, and react to email autonomously

    Jun 2026 · atomicmail.ai

24. 24
    Reply.id▲81

    Supercharge your inbox with our AI Gmail filter

    2018

Ranked by how close each launch is in meaning, then by votes. Refine with a description →