Inbox Zero Mail is an open-source email client for Gmail and Outlook. Fast, keyboard-first, and free to use, on web, Mac, Windows and iPhone, with all your accounts in one inbox. Add AI for $20/mo: every email is sorted, and replies are drafted in your voice before you open them. Comment privately with your team, get Slack alerts, and give the AI context from your tools.
I’m excited to launch Inbox Zero Mail, an open-source Superhuman alternative.
I’ve been running Inbox Zero for 3 years. It started as an AI assistant for Gmail and Outlook, and grew to 12k GitHub stars and 25k+ sign-ups, including Enterprise customers.
Now we’ve built our own email client.
It’s open source, so you can self-host it or build the feature you’ve always wanted.
⚡ Fast and keyboard-first
📥 All your Gmail and Outlook accounts in one inbox
🗂️ Split inbox
✍️ AI drafts in your voice
🧹 Bulk unsubscribe
💬 Team comments
📱 Web, Mac, Windows and iPhone
Free to use. AI is $20/month.
🎁 Code PRODUCTHUNT26 gets 50% off AI for 3 months.
This looks absolutely fantastic. The recent AI tool push for Gmail management is brilliant and is seriously making me rethink my forever-long iCloud mail in favor of moving to Gmail. I love the smooth, clean UI you've developed here.
This is great! But my muscle memory with Gmail is so strong that switching to another email app feels like a lot of effort. As someone who's been using Gmail for years, what's the one thing you'd recommend I try that would make me want to switch?
For the longest time, I didn't even try Superhuman because I couldn't justify paying that much for something Gmail already lets me do for free 😅
@elie222 Inbox Zero looks like a great way to keep emails organized and save time. Love that it's open source and uses AI to sort emails and Draft replies!!
I'm excited to try this out! So far so good.
Heads up, I accidentally marked something as spam at one point and it was really hard to unmark it (I ended up opening up Gmail to unmark it). Besides that, it's been really cool.
Hi team, what's the major difference between this product and grok bot/muse connected to all my email inbox. They do that pretty well for me today.
Congrats Elie on launching Inbox Zero Mail. Going from an AI layer on top of Gmail to your own open-source client is a big step, and self-hosting makes it an option for teams that can't hand their mail to another vendor. When the AI drafts a reply in my voice, does it learn from each account's sent mail separately, or one shared style across every inbox I connect? I write very differently from my work and personal addresses.
Really nice work on this, Elie! Looks great, congrats on the launch. Look forward to checking it out.
Running three years on Inbox Zero and then deciding to build the whole client around it is a bold move, and the split inbox plus bulk unsubscribe combo is why I stopped opening Gmail in a tab.
Elie, congrats on the launch. Been following your work on Inbox Zero for a long time and love all the progress you've made so far.
About Inbox Zero on Product Hunt
“Open-source Superhuman alternative”
Inbox Zero launched on Product Hunt on October 18th, 2026 and earned 357 upvotes and 30 comments, earning #1 Product of the Day. Inbox Zero Mail is an open-source email client for Gmail and Outlook. Fast, keyboard-first, and free to use, on web, Mac, Windows and iPhone, with all your accounts in one inbox. Add AI for $20/mo: every email is sorted, and replies are drafted in your voice before you open them. Comment privately with your team, get Slack alerts, and give the AI context from your tools.
Inbox Zero was featured in Email (36.8k followers), Open Source (69k followers), Artificial Intelligence (481.7k followers) and GitHub (41.4k followers) on Product Hunt. Together, these topics include over 189k products, making this a competitive space to launch in.
Who hunted Inbox Zero?
Inbox Zero was hunted by Ben Lang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Inbox Zero stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Ben Lang
Hey Hunters 👋
I’m excited to launch Inbox Zero Mail, an open-source Superhuman alternative.
I’ve been running Inbox Zero for 3 years. It started as an AI assistant for Gmail and Outlook, and grew to 12k GitHub stars and 25k+ sign-ups, including Enterprise customers.
Now we’ve built our own email client.
It’s open source, so you can self-host it or build the feature you’ve always wanted.
⚡ Fast and keyboard-first
📥 All your Gmail and Outlook accounts in one inbox
🗂️ Split inbox
✍️ AI drafts in your voice
🧹 Bulk unsubscribe
💬 Team comments
📱 Web, Mac, Windows and iPhone
Free to use. AI is $20/month.
🎁 Code PRODUCTHUNT26 gets 50% off AI for 3 months.
🧹 Try it today: https://www.getinboxzero.com
⭐️ Give us a star on GitHub: https://www.getinboxzero.com/github
What would you most like to see added to an open-source email app?