Quartz - AI email client built for focus. Runs locally on your Mac

Quartz turns Gmail into a focused inbox. It sorts every message by importance, and learns what matters to you over time. When you reply, it drafts in your own voice. And the AI runs entirely on your own Mac, so your mail stays end-to-end encrypted and never shared with AI providers.

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Interesting! Congrats on the launch

Thank you  ❤️

Local-first is the right instinct for email agents. The hard part is less summarization and more trust: what can act, what only drafts, and how quickly a user can audit why something happened.

 that's why show AI reasoning in the app and let users correct it. This way Quartz learns from its mistakes and gets better over time. Thank you for checking us out!

Local-on-Mac with Gemma on-device is a great privacy angle, that's exactly why I run my own AI tools on my own machine too. One thing I haven't seen asked: since the model runs on the Mac, what happens to sorting and drafts when the laptop is asleep or closed? Does it catch up the moment you reopen it, or do you need it awake to keep processing? Congrats on the launch.

, when the lid is closed, the app is hibernated and we don't do any processing. The app should resume the processing as soon as you open the lib back up.

So it'll resume automatically but won't process anything when laptop is asleep. In rare case when something gets wrong and processing fails, it's possible to trigger re-processing of an email manually.

Any plans for Windows anytime soon?

 Thanks for asking!

We definitely plan to support Windows. With the huge variety of hardware and system configurations, it’s much harder to guarantee a great user experience, so we decided to focus on Mac first and get that right before expanding.

An email product built around focus! I love that:)

Is there a way to identify which emails are important besides manually marking them myself?

 thank you and good question! You can describe it via your user profile first and then teach Quartz with corrections and feedback. It will get better the more you use it!

Interesting approach. Curious how well it adapts to different writing styles over time

 we're still working on improvements to drafting, that appeared to be pretty challenging task. You should notice difference after sending just a couple of emails from Quartz. If you replied in a thread, it'll try to follow your style immediately.

Quartz AI will also adapt to your contact: emails to friends usually look a bit different than emails to clients or colleagues.

I also have to admit we still have work to do for this feature.

Quartz finished the day at #4 and that was a pleasant surprise!

When you're three founders with no launch budget, every upvote is a person who chose to spend a minute of real attention on you. That's the whole thing we're trying to protect with Quartz, so it means more than I can say to have felt it from this community yesterday.

I want to thank everybody who supported us and even bigger thank you to those who actually installed our app and shared feedback. Getting real people to try Quartz out was our main goal for this launch. So if you haven't had a chance yet, please give it a go and tell us your honest opinion - we're reading and replying here all day.

How about integrating them with office emails? Mostly office emails consist of 1000+ unread emails, which needs sorting and prioritizing. Any idea how we can integrate with office emails?

 are you on MS Outlook / Microsoft 365?
Currently, we support Gmail only but other providers are on the roadmap. Tell me your exact setup and I'll see how we can help and bump it up the list.

Running AI locally is a big deal for privacy. Most email tools want you to hand over everything to their servers. Quick question, does it handle multiple Gmail accounts or just one?

 yes, you can add multiple Gmail accounts.

Congrats! But always Gmail - I really would like to see something modern on the Mac for all of my IMAPs. 🙏

 I know! Gmail is such a huge part of the market, and its API makes it much easier to build without losing features people rely on. That said, IMAP support is definitely on our roadmap. Every comment like this helps us prioritize it a little higher ⬆️