- Live chat
- Quiz/ survey
Commercial provider, no registration needed for participants. Since 2024, frontend for the underlying open source ARSnova project.
- GDPR
- no registration
- open source
- recommended
- sufficiently free
- Live chat
- Quiz/ survey
Collect, evaluate and present questions live. Access with QR-code or 8-digit room number. Students can reply to questions, teacher can also put up quick multiple-choice surveys. Unlimited questions and participants.
Free, GDPR-conform tool supported by Hessen, no registration needed for students (registration needed for teacher for automatic ChatGPT-based answers). Since 2019.
- GDPR
- no registration
- recommended
- sufficiently free
- Images
- Live chat
It’s for sending memes to students, so Categories = Live Chat (<Communicate with Students) and Images.
It’s TUM and GDPR, no registration — but not sufficiently free. Five star rated.
- GDPR
- no registration
- recommended
- TUM
- Communicate with students
- Live chat
Online private chat tool, self-hosted, without login needed.
Open source chat tool, free. Released 2020, last update 2021; demo site (2025) insecure.
- no registration
- open source
- sufficiently free
- Communicate with students
- Live chat
- Quiz/ survey
Live voting and feedback tool: QR or short URL to enter, chat, six standard buttons for lectures (too soft/ fast/ slow/ … ), quizzes, and surveys.
GDPR conform, commercially spun off University of Rostock tool, free basic version, no registration needed (except host in pro version). Released 2020.
- no registration
- sufficiently free
- Collaborative boards
- Live chat
- Presentations
- Quiz/ survey
- Video conferencing
Videoconferencing system focusing on online event/group work. Virtual space “Proximity chat”, where participants move their avatars close to allow chatting; environment is a collaborative board so you can put any type of material or decoration.
Private provider, cost scaling by participants ($300 for up to 25, $500 for up to 100, etc) registration required. Released 2020.
- Collaborative boards
- Live chat
- Video conferencing
Video conferencing system focused on online event/group work. Virtual space “Proximity chat”, where participants move their avatars close to allow chatting; an open office type environment with chairs and plants to make physical breakout rooms (with whiteboards, games like chess, virtual TVs, … ).
Private provider, not GDPR compliant (except Enterprise plan), free of charge up to 50 participants, registration required. Released 2021.
- sufficiently free
- Live chat
- Quiz/ survey
Uni-Tool, free of charge, usable without registration. Since 2012, actively promoted 2021-2023.
- no registration
- sufficiently free