InboxZero uses AI to cluster, clean and organise your Gmail in one click — right inside Gmail. No app switching. No setup. Just a clean inbox.
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mail.google.com — Inbox (847)
Primary847 emails
Sarah K.
Re: Q4 budget review — need your sign-off
2h
Morning Brew
The fintech shake-up nobody saw coming
8h
Amazon
Your order has shipped — arrives Thursday
1h
Marcus L.
Re: Design handoff notes from Figma
3h
james@acme.io
Quick question about your workflow...
Today
Figma
50% off annual plan — today only
6h
Priya M.
Sprint planning tomorrow at 10am — agenda inside
5h
TLDR
AI news you missed this week
Yesterday
IZ
InboxZero
847
Total
612
Clutter
34
Action
💼
Work threads
34
📰
Newsletters
241
🧾
Receipts
187
📣
Cold outreach
89
🎉
Promotions
101
1 cluster · 34 emails selected
What it does
Everything your inbox needs. Nothing it doesn't.
Built for people who get too many emails and have spent too much time trying to deal with them.
🧠
AI clustering
Every email is classified by intent — work, newsletters, receipts, cold outreach, promotions — not just sender or date.
Claude AI
⚡
One-click bulk clean
Select a cluster, click Archive or Delete. Wipe 200 newsletters in one action. No manual selection needed.
Gmail API
💬
Natural language
Type "delete all cold outreach I never replied to" and it's done. No filters, no rules, no menus to navigate.
Command bar
🔒
Privacy first
Only email subjects and sender names are processed. No full email content ever leaves your browser. No data sold.
Local processing
🛑
Unsubscribe hunter
Automatically surfaces every sender with an unsubscribe link that you've never replied to. Cut the noise at the source.
Smart detection
📍
Lives inside Gmail
No separate app to open, no dashboard to check. The sidebar lives inside Gmail — right where you already are.
Chrome extension
How it works
Three steps to a clean inbox
From install to clean inbox in under 3 minutes.
01
Install the extension
Add InboxZero from the Chrome Web Store. One click. No account needed to get started.
02
Connect Gmail
Authorise with your Google account. InboxZero only reads what it needs — subjects and senders. Nothing else.
03
Scan and clean
Click Scan. AI clusters your inbox in seconds. Select what to clean. Done. Your inbox is under control.
4.8B
Email users worldwide
120
Emails per person per day
28%
Of workday spent on email
<3min
To clean 800 emails with InboxZero
Pricing
Simple, honest pricing
Start free. Upgrade when you need more. No tricks.
Free — Spark
$0
Everything you need to see if InboxZero is right for you. No credit card required.
3 AI clusters per inbox
50 emails bulk cleaned per day
5 unsubscribes per week
Basic command bar
Unlimited clusters
Unlimited bulk clean
Pro
$6/mo
For people serious about inbox zero. Unlimited everything, advanced AI, priority support.
Unlimited AI clusters
Unlimited bulk clean
Unlimited unsubscribes
Full natural language commands
Priority support
Early access to new features
Legal
Privacy Policy
Effective date: March 2026Last updated: March 2026
InboxZero is built on a simple principle: your email is private. We access only what we need, process it locally where possible, and never sell your data. This policy explains exactly what we do — and what we don't do.
🔒
No body content
We only read subject lines and sender names. Never full email content.
🚫
No data selling
We never sell, rent, or share your personal data with third parties.
🗑️
Delete anytime
Disconnect the extension at any time. All cached data is immediately removed.
1. Who we are
InboxZero is a Chrome extension built by an independent developer. The extension helps Gmail users organise and clean their inbox using AI-powered email clustering. For questions about this policy, contact us at hello@inboxzero.app.
2. What data we access
InboxZero accesses your Gmail account through the official Google Gmail API using OAuth 2.0. We request the following permissions:
Scope
What we read
What we never read
gmail.readonly
Subject lines, sender name, sender email, date
Email body, attachments, CC/BCC lists
gmail.modify
Message IDs only (to archive/delete when you request it)
We never modify emails without explicit user action
We access email metadata only when you click the Scan button. We do not monitor your inbox in the background or access emails automatically.
3. How we process your data
Email subject lines and sender names are sent to the Claude AI API (operated by Anthropic, Inc.) for classification into clusters. This is the only external service that receives any part of your email data.
Specifically:
We send: email subject lines and sender names (no body content, no attachments)
Anthropic receives this data to perform classification and returns cluster labels
If you have not configured a Claude API key, all clustering is done locally in your browser using keyword matching — no data is sent externally
Cluster results are cached temporarily in your browser's local storage (Chrome Storage API) to avoid repeated API calls. This cache is stored on your device only and is cleared when you disconnect the extension.
4. What we store
On your device (Chrome Storage): Your cluster cache, your preferences, and your Pro licence status. This data never leaves your device except as described in section 3.
On our servers (if you create an account): Your email address, account creation date, and subscription status. We do not store any email data on our servers.
We do not store: Email subject lines, sender names, email content, or any Gmail data on our servers at any time.
5. Gmail API limited use disclosure
InboxZero's use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.
Specifically, we confirm that:
We do not use Gmail data to develop, improve, or train generalised AI or ML models
We do not allow humans to read your Gmail data unless you explicitly grant permission or it is required for security purposes
We do not transfer Gmail data to third parties except as necessary to provide the InboxZero service (i.e. sending subject lines to Claude API for classification)
We do not use Gmail data for serving advertisements
Our use of Gmail data is limited to providing and improving the InboxZero email clustering feature
6. Data retention and deletion
Disconnect the extension: All locally cached data is deleted immediately. Revoke Gmail access via your Google account permissions page.
Delete your account: Email us at hello@inboxzero.app and we will permanently delete all account data within 30 days.
Waitlist data: If you joined our waitlist, your email address is stored only for launch notification. You can unsubscribe at any time using the link in any email we send.
7. Third-party services
Service
Purpose & data shared
Anthropic Claude API
AI email classification. Receives: subject lines & sender names only.
Lemon Squeezy
Payment processing for Pro subscriptions. We never see your full card number.
Supabase
User account storage (email address, subscription status). No email data stored.
PostHog
Anonymous product analytics (install events, button clicks). No PII collected.
8. Your rights
Depending on your location, you may have the following rights under GDPR, CCPA, or other applicable privacy laws:
Access: Request a copy of the personal data we hold about you
Correction: Ask us to correct inaccurate personal data
Deletion: Request deletion of your personal data
Portability: Receive your data in a machine-readable format
Objection: Object to certain types of processing
To exercise any of these rights, email hello@inboxzero.app. We will respond within 30 days.
9. Security
We use OAuth 2.0 (the industry standard) for Gmail authentication. Access tokens are stored in Chrome's secure identity API and are never exposed to web pages. All communication with the Gmail API and Claude API occurs over HTTPS. We do not store Gmail access tokens on our servers.
10. Children
InboxZero is not directed at children under 13. We do not knowingly collect personal data from children. If you believe a child has provided us with personal data, contact us and we will delete it promptly.
11. Changes to this policy
If we make material changes to this policy, we will notify users via email (if you have an account) and update the effective date at the top of this page. Continued use of InboxZero after changes take effect constitutes acceptance of the revised policy.
12. Contact
Questions about this policy?
We are happy to answer any questions about how we handle your data. We aim to respond within 2 business days.