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Dev tools · alternatives · 2026

24 alternatives to An Open Source Superhuman Email Client Clone

An open-source, fully native, and local-first Superhuman Clone. - michaelmagan/OpenHuman

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Revolutionary AI email, reimagined for teams

    2024 · superhuman.com · its alternatives →

  2. 2

    Hey Hacker news, Over the last couple months, I've been hacking with a friend on an email client for gmail that is similar to superhuman. A little backstory, we think that superhuman, in it's current implementation is vim-like. We hope to mostly match the performance and usability there and expand it into something more vscode-like. Looking for feedback and suggestions!

    2023 · github.com · its alternatives →

  3. 3
    OpenHuman▲549

    An open source AI harness built with the human in mind

    May 2026 · tinyhumans.ai · its alternatives →

  4. 4
    Zero▲845

    Hi HN, I’m Nizar, and I’m building Zero (https://0.email) — an AI-powered email client that manages your inbox for you. Email hasn’t changed in decades, even though the way we work has. The average knowledge worker now spends close to 30% of their week on email, constantly reacting, replying, and sorting through noise. It’s become one of the biggest productivity sinks in modern work. At the same time, AI has transformed how we write, plan, and collaborate — yet our inboxes are still stuck in the past. I built Zero to fix that. Zero automatically prioritizes, organizes, and even…

    2025 · 0.email · its alternatives →

  5. 5

    Build, manage & run useful autonomous AI agents on cloud

    2023 · superagi.com · its alternatives →

  6. 6IM
  7. 7

    Write emails faster than ever. On the go.

    2024 · superhuman.com · its alternatives →

  8. 8

    Impress clients effortlessly with AI built for agencies. Connect your meetings, docs, and email context for better AI outputs. Fast and easy. Start free.

    2020 · supernormal.com · its alternatives →

  9. 9
    Outerspan▲205

    Deploy agents that have their own email inbox

    2025 · outerspan.com · its alternatives →

  10. 10
    Nitrosend▲168

    Email for AI agents. They sign up, send and reply.

    Jul 2026 · nitrosend.com · its alternatives →

  11. 11

    I have been working on making WebRTC + Embedded Devices easier for a few years. This is a hackathon project that pulled some of that together. I hope others build on it/it inspires them to play with hardware. I worked on it with two other people and I had a lot of fun with some of the ideas that came out of it. * Extendable/hackable - I tried to keep the code as simple as possible so others can fork/modify easily. * Communicate with light. With function calling it changes the light bulb, so it can match your mood or feelings. * Populate info from clients you control. I wanted…

    2025 · github.com · its alternatives →

  12. 12

    Use open-source AI in your Node.js apps, up to 67x faster

    2023 · energeticai.org · its alternatives →

  13. 13

    The prototype of ambient agents

    2025 · agentinbox.ai · its alternatives →

  14. 14

    Generate AI driven relevant > hyper-personalised cold emails

    2024 · its alternatives →

  15. 15

    No more typing, no more stress - let AI handle your emails

    2023 · superreply.co · its alternatives →

  16. 16AE

    Hi HN! We're Haakam, Michael, and Adi from AgentMail- a ycs25 company. We give AI agents their own email inboxes. Recently, we ran an experiment called Agent.Email. It's a signup flow designed specifically for AI agents instead of humans. The inspiration came from a few comments we received when we did our seed launch a few months back. They all came from the very apt observation that agents not being able to sign up to a product made for agents without human credentials was ironic and unideal. This is basically the thesis we built AgentMail on: The internet was made for humans exclusively,…

    May 2026 · its alternatives →

  17. 17

    The First AI-Powered Email Productivity Platform

    2023 · its alternatives →

  18. 18

    Hi, I've been watching the rise of AI agents with a mix of excitement and dread. We're building incredible tools that can browse the web, but we're forcing them to navigate a world built for human eyes. They scrape screens and parse fragile DOMs. We're trying to tame them to act like humans. I believe this is fundamentally wrong. The goal isn't to make AI operate at a human level, but to unlock its super-human potential. The current path is dangerous. When agents from OpenAI, Google, and others start browsing at scale and speed, concepts like UI/UX will lose meaning for them. The entire…

    2025 · github.com · its alternatives →

  19. 19

    The fastest email experience ever made — now on Android

    2023 · superhuman.com · its alternatives →

  20. 20

    Custom AI agents for SMBs. agentic voice, email, sms, & more

    2025 · poweredby.agency · its alternatives →

  21. 21

    We love Instinct, but have been increasingly worried about the data footprint we are handing over to them, and what they might do with that data. So we built an oss self-hostable version. It includes a vault that can store cards, logins, and personal information, so it can execute complex tasks on your behalf, like: "Get me two tickets to the odyssey on saturday at my nearest theatre" "Find me the best golf grip trainer and order it for me" "Read my email and find opportunities to save money by cancelling subscriptions I don't use" The tech stack: - Eve agent framework for durable agent runs…

    Aug 2026 · github.com · its alternatives →

  22. 22LO

    Hi HN, Martin, Nils, and Jannes here. We are building Legit, an open source version control and collaboration layer for AI agents and AI native applications. You can find the repo here https://github.com/Legit-Control/monorepo and the website here https://legitcontrol.com Over the last years, we worked on multiple developer tools and AI driven products. As soon as we started letting agents modify real files and business critical data, one problem kept showing up. We could not reliably answer what changed, why it changed, or how to safely undo it. Today, most AI…

    Jan 2026 · its alternatives →

  23. 23MA

    The mnm project is building a legitimate* replacement for email: a client, a server, and a simple protocol between them. https://mnmnotmail.org The project is seeking contributors and patrons. It has been in progress since 2017, wholly self-funded. This is the first announcement to a wide audience. [*] Legitimate, meaning decentralized, store-and-forward, open protocol, open source.

    2020 · its alternatives →

  24. 24

    Managed cloud for open-source AI agents

    Jul 2026 · mantlecore.ai · 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 →