Klorn
Klorn classifies incoming email into five lanes—urgent interruptions, meetings, queue, information, and silent filing—and displays the reason for each decision. It offers web, macOS, and Windows clients, with self-hosting, user-controlled keys, and local-model support for privacy-conscious professionals and teams.
Commercial OSSAGPL-3.0WebSelf-hostedmacOSWindowsCloud-managedAPI
8stars
1fork
10features
2026since
Overview
10 featuresKlorn is an Email & inbox project. It focuses on reducing inbox interruptions while preserving urgent messages and explaining why each email was prioritized. It is built as a B2B product for individual professionals and privacy-conscious teams managing busy inboxes. It follows a commercial open-source model under the AGPL-3.0 license. It runs on the web, macOS, Windows, and API, and it can be self-hosted.
Behind Klorn is Klorn, and it first shipped in 2026. The project is developed in the open on GitHub with 817 commits in the last 90 days. Key capabilities include five email lanes, reason display, and urgent mail protection. The interface is available in 7 languages, including German, English, and Spanish. It exposes integrations via a public API.
Summary written by a language model from the project’s public pages.
- Five email lanes
- Reason display
- Urgent mail protection
- Calendar checking
- Reply approval
- Email filing
- Web app
- macOS app
- Windows app
- Local model support
Tags
email-triageexplainable-prioritizationinbox-lanesself-hosted-emailprivacy-first
AI capabilities
Text
Inference: Hybrid
Built with & integrations
Connectors
API
Runs on
BrowserSelf-hostedmacOSWindowsCloud-managedAPI-only
Trust & compliance
License
AGPL-3.0
Verified signals
Indexing history
1What PulseGate has recorded for this listing
- Indexed26 Aug · 19:06 UTCPrompt injection starts in your inbox. The defense can't be a prompt. verified against its public sourceSource: PulseGate · Open
Frequently asked questions about Klorn
- What is Klorn?
- Klorn focuses on reducing inbox interruptions while preserving urgent messages and explaining why each email was prioritized. It is catalogued under Email & inbox on PulseGate.
- Who should use Klorn?
- Klorn is a B2B product built for individual professionals and privacy-conscious teams managing busy inboxes.
- How much does Klorn cost?
- Klorn is open source (AGPL-3.0); commercial plans start at $9.
- What platforms does Klorn run on?
- Klorn runs on the web, macOS, Windows, and API. It can also be self-hosted.
- Is Klorn still maintained?
- The GitHub repository shows 817 commits in the last 90 days.
- What are alternatives to Klorn?
- Similar projects tracked by PulseGate include Blocks, Post Publish Email Notifier, and {eac}Doojigger Simple SMTP Extension.BlocksPost Publish Email Notifier{eac}Doojigger Simple SMTP Extension
- Who develops Klorn?
- Klorn is developed by Klorn.
- How long has Klorn been around?
- Klorn first shipped in 2026.
Also in Email & inbox
Same category — not a similarity match