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Cauldronwallabag
Free

Free and open source under the Apache-2.0 licence; requires an Instapaper account.

 Freemium

Free and open source to self-host. A hosted account is paid.

Linux Android, iOS, Web, Self-hosted, Browser extension
  • Native GTK interface for GNOME
  • Reads saved Instapaper articles outside the browser
  • Keeps a permanent readable copy, so link rot does not lose the article
  • Exports to EPUB and PDF and publishes your saved items as RSS
  • Only works with Instapaper
  • Linux only
  • Article extraction fails on some sites and needs site configuration files
  • Self-hosting requires PHP and a database, or a paid hosted account
Downloadable app Self-hosted, Web application, Browser extension
Open source Open source
License: Apache-2.0 License: MIT
Account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.