Fider

Fider is an open source platform for collecting and prioritizing customer feedback. It allows teams to give users a voice by letting them submit ideas, vote on features, and follow progress updates.

Built with Go and designed to be self-hosted, Fider is lightweight, fast, and simple to deploy. It supports OAuth sign-in, custom domains, email notifications, and a clean public board where users can engage directly with product decisions.

Fider is a great alternative to tools like UserVoice or Canny for teams that want full control over their feedback data without the enterprise pricing.