KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux.

Related contents:

• KOmpanion - bookshelf companion for KOreader @ GitHub.

The to-do app to organize your life. Also one of the two wild South American camelids which live in the high alpine areas of the Andes and a relative of the llama. Vikunja is an Open-Source, self-hosted To-Do list application for all platforms. It is licensed under the AGPLv3.

• Vikunja @ GitHub.
• 🎙️ Vikunja Voice Assistant for Home Assistant @ GitHub.

Open source password manager for teams The password manager your team was waiting for. Free, open source, extensible, based on OpenPGP.

• Passbolt @ GitHub.

Related contents:

• Passbolt : gestionnaire de mots de passe open-source pour équipes @ DevSecOps :fr:.

Visualize your data, optimize your performance.

Easily collect, correlate, and visualize data with beautiful dashboards using Grafana — the open source data visualization and monitoring solution that drives informed decisions, enhances system performance, and streamlines troubleshooting.

• Grafana @ GitHub.

Related contents:

• I can’t recommend Grafana anymore @ Henrik Gerdes.

Kandan is a free open source chat app.

Kandan is a private chat service for your company or team. You can invite colleagues to share ideas and files in a persistent group chat room or rooms.

Unlike HipChat or other alternatives, Kandan is completely Open Source and can be hosted internally or externally by your organization or by a third party.