Papr
Papr is a free, open-source email and calendar app for Windows, macOS and Linux. A fast, native RSS reader — plus an agent-facing CLI so your AI agent can read, search and triage your feeds from the shell. It has 539 GitHub stars and is released under the MIT license.
- Linux
- macOS
- Windows
- Email & calendar
- Actively maintained
About Papr
A fast, native RSS reader — plus an agent-facing CLI so your AI agent can read, search and triage your feeds from the shell. A fast, native RSS reader — and a CLI your AI agent can actually drive. Papr is two front-ends over one local database:
Install Papr
Package names found in the project's README. Each links to its package page so you can check the publisher first.
brew install --cask l0ng-aiSimilar apps
More open-source email clients
Folo
RSSNext/Folo
Folo is an open-source AI RSS reader that brings everything you follow into one calm timeline, then helps you read it.
Email & calendarWindowsmacOSLinuxMailspring
Foundry376/Mailspring
A beautiful, fast and fully open source mail client for Mac, Windows and Linux.
Email & calendarWindowsmacOSLinuxNetNewsWire
Ranchero-Software/NetNewsWire
NetNewsWire is a free and open-source feed reader for macOS and iOS.
Email & calendarmacOSFluent Reader
yang991178/fluent-reader
Modern desktop RSS reader built with Electron, React, and Fluent UI.
Email & calendarWindowsmacOSLinuxMeetingBar
leits/MeetingBar
🇺🇦 Your meetings at your fingertips in the macOS menu bar.
Email & calendarmacOSRssguard
martinrotter/rssguard
Feed reader (podcast player, basic XMPP client and also Gemini protocol client) which supports RSS/ATOM/JSON and many web-based feed services.
Email & calendarWindowsmacOSLinux
What is Papr?
Papr is a free, open-source email and calendar app for Windows, macOS and Linux. A fast, native RSS reader — plus an agent-facing CLI so your AI agent can read, search and triage your feeds from the shell. It has 539 GitHub stars and is released under the MIT license.
Is Papr free and open source?
Yes. Papr's source code is public on GitHub under the MIT license, which is OSI-approved or FSF-free, so you can use, copy and change it for free.
How do I install Papr?
Homebrew: brew install --cask l0ng-ai. The commands are on this page. Installers are also on its GitHub Releases page (latest: v0.16.1).
Is Papr still maintained?
The repository's most recent commit was on Sep 23, 2026. appsgit only lists apps whose repository had a commit in the last six months.