Claper
The ultimate tool to interact with your audience (alternative to Slido, AhaSlides and Mentimeter).
- Polls, Surveys & Events
- Elixir
- AGPL-3.0
- Docker
- Actively maintained
GitHub stats
- GitHub stars
- 810
- Forks
- 154
- Open issues
- 13
- Commits, last 12 months
- 104
- Last commit
- Oct 2, 2026
- Latest release
- v3.1.0Oct 2, 2026
- Created
- Jul 22, 2022
Data from the GitHub API, refreshed daily.
About Claper
The ultimate tool to interact with your audience (alternative to Slido, AhaSlides and Mentimeter). Claper is open source under the AGPL-3.0 license and written mainly in Elixir, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 810 stars and 154 forks on GitHub, with 104 commits over the last year. It ships a Docker image, which makes it a good fit for a small VPS or a home server running Docker Compose.
Topics
- audience-engagement
- interaction
- live
- poll
- powerpoint
- presentation
- public-speaking
Repository preview
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What is Claper?
Claper is a free, open-source app you can host on your own server, listed in our Polls, Surveys & Events category. The ultimate tool to interact with your audience (alternative to Slido, AhaSlides and Mentimeter). The source code lives at github.com/ClaperCo/Claper, where it has 810 stars.
Is Claper free and open source?
Yes. Claper is open-source software released under the AGPL-3.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Claper with Docker?
Yes. Claper provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to Claper?
Popular open-source alternatives to Claper include Formbricks, HeyForm and Rallly.
Is Claper actively maintained?
The most recent commit to Claper was on Oct 2, 2026 with 104 commits in the past twelve months. The latest release is v3.1.0, published Oct 2, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.