Open Source
Read-only · No emails sent or deleted

187 unread
— not a number.

sitting in your inbox right now

MailOS sits on top of Gmail and turns your inbox chaos into one clean daily summary. No new email client. No migration.

10hsaved/week
98.7%AI accuracy
2 mindaily review
Star on GitHub

No credit card. 5-min setup. Self-hostable.

MailOS · Live
S

Sarah Chen

Invoice #1042 due Friday

Important
N

Notion

Your weekly digest is ready

Grouped
L

Linear

[BUG] Critical crash in v2.1

Important
P

ProductHunt

Top products of the week

Filtered
A

Alex Rivera

Re: Partnership proposal

Important
S

Stripe

Your payout is on its way

Important
0
Important
0
Grouped
0
Filtered
Real-time · Event-driven

Email arrives. AI acts. You decide.

No polling delays. Every email is classified within seconds of landing in Gmail.

1

Email Arrives

2

Push Notif.

3

Webhook Fires

4

AI Classifies

5

Actions Run

6

You Review

Gmail Watch API
Google Cloud Pub/Sub
Production AI · Gemini Flash
View Source

What MailOS actually does

Six focused capabilities. Zero fluff.

AI Classification

Intent, urgency, category — classified within seconds.

Smart Grouping

Newsletters and promos clustered, out of your way.

Surface Important

Time-sensitive emails never buried again.

Task Extraction

Action items and deadlines pulled from email body.

Daily Digest

One scannable summary. Read it in 2 minutes.

Real-time Push

No polling. Processed the moment it arrives.

187 emails. One clean digest.

Every morning, MailOS collapses your inbox into what actually requires your attention.

Before MailOS

187unread emails
  • 45 min of inbox scrolling daily
  • 3 important emails missed
  • Constant context switching
  • Manual filters that constantly break

After MailOS

0
Important
0
Grouped
0
Filtered
  • 2-minute daily digest review
  • Zero important emails missed
  • One clean prioritized view
  • Fully automatic — no rules needed
Security First

Built for trust. Read-only by default.

MailOS never modifies your inbox. It's a read-only intelligence layer on top of Gmail — your data stays yours.

Read security details

Read-only access

Only reads metadata — never email body storage

Cannot send emails

Zero outbound access, ever

Cannot delete emails

Your Gmail stays untouched

AES-256 encrypted

Data encrypted at rest and in transit

Revoke in one click

Disconnect from Google settings anytime

Open Source · Free to self-host

Reclaim 10 hours this week.

500+ professionals already have. Join them — free to start, open to inspect.

Star on GitHub
Read-only · Never sends emails
No credit card required
MIT Licensed · Self-hostable
Featured on FoundrList