GMClean vs InboxSweeper
GMClean
github.comInboxSweeper
github.comSide by side
| Figure | GMClean | InboxSweeper |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Email Cleanup Software | 8.5 (#8) | 8.7 (#5) |
| Authentication | It supports app passwords and OAuth2 for Google and Microsoft. | The product uses a scoped Gmail or Yahoo app password over IMAP rather than OAuth or Google Sign-In. |
| Email providers | It supports Gmail, Outlook, and custom IMAP mailboxes. | Gmail is fully supported; Yahoo and other IMAP inboxes are experimental. |
| Privacy | The README says GMClean fetches email headers only and does not download email bodies. | The tool runs on the user's computer and says mail, credentials, and tokens are not uploaded; anonymous usage counters can be disabled with INBOXSWEEPER_NO_TELEMETRY=1. |
| Purpose | GMClean scans email headers, classifies messages, and supports mass unsubscribe, bulk deletion, and export. | InboxSweeper bulk deletes old promotions and newsletters and unsubscribes from mailing lists. |
Plans
In their own words
GMClean
GMClean is a free, self-hosted web tool for scanning email headers, classifying messages, unsubscribing in bulk, deleting email, and exporting data. It works with Gmail, Outlook, and custom IMAP mailboxes, with up to 10 mailboxes connected at once. GMClean fetches headers such as sender, subject, and List-Unsubscribe details without downloading message bodies. It can scan INBOX, Spam, Promotions, Trash, and other IMAP folders. Inbox analysis includes a 0–100 health score based on five weighted factors, sender insights, and email age distribution. Classification uses heuristic rules, with optional Gemini assistance for ambiguous cases. Users can unsubscribe with one click using RFC 8058 support or unsubscribe in bulk; bulk deletion runs in batches of 500 messages. Exports include selected subscriptions with resubscribe links and scanned emails in CSV format. The project documents deployment with npm, Docker, or Docker Compose. It says app data stays in browser IndexedDB and there is no cloud database or telemetry. Credentials are encrypted with AES-256-CBC before storage, and setup requires an ENCRYPTION_SECRET. The repository is MIT-licensed.
InboxSweeper
InboxSweeper is a free, open-source tool for clearing old promotional mail and newsletters and unsubscribing from mailing lists. It supports Gmail fully; Yahoo and other IMAP inboxes are experimental. Choose among three sweep modes: Sloth targets mail older than two years, Normal mail older than one year, and MadMax includes recent promotional mail. Their respective run caps are 25, 50, and 100 senders. Before moving messages, sweeps show counts; financial, security, payment, receipt, and government mail is protected. You can unsubscribe, move selected messages to Trash, or report senders as spam. Trash messages are described as recoverable for about 30 days. One-click and mailto unsubscribe options are supported; web-link-only options are flagged for manual handling. The tool runs on your computer and says it does not upload mail, credentials, or tokens. It offers a local browser interface, Windows executable, terminal CLI, and AI-agent instructions. It uses a scoped app password rather than Google OAuth, with credentials stored in macOS Keychain or a locked file.