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EmailSlim
What it is
EmailSlim is a web service for finding storage-heavy email and cleaning up Gmail or Microsoft accounts. It analyzes metadata such as sender, subject line, date, size, and labels, then ranks senders and domains by total storage used. Users can inspect grouped senders and approve bulk deletion, with messages sent to Trash or Deleted Items first. One-click unsubscribe uses standard List-Unsubscribe headers when available, although it may not work for every sender. Connections use Google OAuth or Microsoft OAuth, and access can be revoked in account settings. EmailSlim says it does not read email body content, sells or shares no email data, and uses encryption in transit and at rest, access controls, and regular security audits. Supported accounts include Gmail, Outlook, Hotmail, Live.com, MSN, and Microsoft 365. The Free scan costs nothing for the first 500 emails, with no credit card or subscription. Paid pricing starts at $2.50/mo; mailbox-tier amounts for cleanup and automation appear after sign-in.
For and against
For
- Ranks senders by storage use
- Bulk deletion requires approval
- Supports Gmail and Microsoft accounts
- Does not read email bodies
- Offers unsubscribe tools
Against
- Unsubscribe may not work for every sender
- Paid plan starts at $2.50/mo
- Exact tier prices require sign-in
- Free scan covers 500 emails
The verdict
EmailSlim provides metadata-focused cleanup with sender rankings, approval-based deletion, and unsubscribe support. Its free scan is limited to 500 emails, while mailbox-tier pricing applies to broader cleanup and automation.
Who it suits
EmailSlim suits Gmail and Microsoft email users who want to locate large senders, remove messages in bulk, or unsubscribe. It is useful when metadata-based cleanup and user approval are priorities.
Plans and prices
Free scan
First 500 emails · no credit card · no subscription
Read 9 Oct 2026 · emailslim.com
Annual Subscription
Automation · tiers up to 150k emails
Read 9 Oct 2026 · emailslim.com
One-Time Cleanup
Mailbox tiers based on scan volume, up to 150k emails
Read 9 Oct 2026 · emailslim.com
Set & Forget Automation
Daily inbox cleanup automation · tiers up to 150k emails
Read 9 Oct 2026 · emailslim.com
On the record
- API handling
- The terms say Gmail API use follows Google's Limited Use requirements and Microsoft Graph use follows Microsoft's API terms; email data is not sold, shared, or used for advertising.emailslim.com · read 9 Oct 2026
- Automation
- The monthly automation plan is described as cleaning the inbox daily.emailslim.com · read 9 Oct 2026
- Bulk cleanup
- Users can review grouped senders and bulk delete emails, with deletions initiated only after user approval.emailslim.com · read 9 Oct 2026
- Connection method
- Users authenticate through Google OAuth or Microsoft OAuth, and can revoke access through their account settings.emailslim.com · read 9 Oct 2026
- Metadata privacy
- EmailSlim says it processes sender, subject line, date, size, and labels and does not read email body content.emailslim.com · read 9 Oct 2026
- Payments
- Payments are processed through Stripe, and EmailSlim says it does not store payment information on its servers.emailslim.com · read 9 Oct 2026
- Purpose
- EmailSlim analyzes email metadata and helps users identify storage-heavy senders and clean up their Gmail or Microsoft email accounts.emailslim.com · read 9 Oct 2026
- Security
- The terms state that EmailSlim uses encryption in transit and at rest, access controls, and regular security audits.emailslim.com · read 9 Oct 2026
- Storage ranking
- It ranks senders and domains by total storage used so users can review the largest space users first.emailslim.com · read 9 Oct 2026
- Supported email providers
- The service supports Gmail and Microsoft email accounts including Outlook, Hotmail, Live.com, MSN, and Microsoft 365.emailslim.com · read 9 Oct 2026
- Unsubscribe
- EmailSlim offers one-click unsubscribe using standard List-Unsubscribe headers when available, but says the feature may not work for every sender.emailslim.com · read 9 Oct 2026
- User control
- EmailSlim says email operations require explicit user consent and initiation, and deleted emails go to Trash or Deleted Items first.emailslim.com · read 9 Oct 2026
