Freedom tag: open source

WBO
  • Collaborative boards
Collaborative whiteboard software. Basic writing and drawing tools on anonymous surface.

Collaborative whiteboard software. Basic writing and drawing tools: Ellipses, rectangles, lines of various thickness; one font, ten colours. Generate private boards with UUID in URL, or with (guessable) chosen name; self-hosted or use the demo server (with no data-retention nor -protection policy described, hence not GDPR-compliant).

Open source, free of charge, no registration needed. Released 2020.

  • "Tested; Not yet rated."
  • no registration
  • open source
  • sufficiently free
Scrumblr
  • Collaborative boards
  • Project management
Simple collaborative Kanban board; two types of notes, coloured by user. Open source, free of charge, no registration needed. Released 2011.

Simple collaborative Kanban board; two types of notes, coloured by user (eight colours), single (black) font. Not clear how many users possible, no stated data security policy. Looks good but very limited.

Open source, free of charge, no registration needed. Released 2011.

  • "Tested; Not yet rated."
  • no registration
  • open source
  • sufficiently free
HedgeDoc
  • Collaborative documents
Create and edit documents (using Markdown, flow and bar charts, maths, … ) together.
Create and edit documents (using Markdown for text formatting, flow charts and sequence diagrams, Mathjax, bar charts, … ) together.

Free, open source tool, GDPR-compliant but requiring login via TUM (SSO) or self-hosted instance. This project is a fork of a fork: HackMD released 2015, from which CodiMD forked 2017, from which HedgeDoc forked 2018.

  • "Tested; Not yet rated."
  • GDPR
  • open source
  • sufficiently free
  • TUM
Cryptpad
  • Collaborative documents
Collaborative usable office suite (e.g. texts, code, spreadsheets, whiteboard, markdown slides, diagrams, or kanban boards).

Collaborative usable office suite (e.g. texts, code, spreadsheets, whiteboard, markdown slides, diagrams, or kanban boards).

Open source, privacy by design, usable without registration (but registration needed to upload files). Hosted by TUM at https://cryptpad.rbg.tum.de/. Released 2014.

  • "Tested; Not yet rated."
  • GDPR
  • no registration
  • open source
  • sufficiently free
  • TUM
Wakelet
  • Collaborative boards
  • Create learning material
Pinboard, either collaborative or for teacher to put tasks and resources on.

Pinboard, mainly intended for a teacher to present information (images, videos, text, links, …) and tasks. The students then have only reading permission, except where the teacher has inserted a commentary or ‘like’ button. Integrations with many other services.

Commercial provider, free basic version, registration required. Since 2010.

  • "Tested; Not yet rated."
  • open source
  • sufficiently free