Build quizzes.
Battle friends.
Open-source multiplayer quiz platform for classrooms, communities and friends.
or create and host your own quiz →
Everything you need
Realtime Multiplayer
Host live rooms players join with a code.
AI Quiz Generator
Generate whole quizzes instantly with Gemini.
Ranked 1v1 Duels
Challenge others in ELO-ranked matches.
Live Results
Instant scoring, charts and leaderboards.
Self Host
Deploy your own instance, AGPL-3.0 licensed.
Mobile Friendly
Play on any device, anywhere.
What is Buzrr?
Buzrr is an open-source quiz platform that runs in the browser. A host builds a multiple-choice quiz — by hand or with AI — and opens a live room; players join from their own phones or laptops with a 6-character code, a link or a QR code, without creating an account. Signed-in users can also play ranked 1v1 quiz battles. Buzrr is licensed under AGPL-3.0, so anyone can read the code or run their own instance.
See Buzrr in action
What people use Buzrr for
- Live quizzes for the classroomPut a code on the projector, students join from their phones or school laptops, and you run a quick review or a revision game in the time it takes to take attendance.
- Quiz rounds for college fests and club eventsFest quiz rounds, society inductions, freshers' nights, hackathon breaks — Buzrr gets a hall full of people answering on their own phones with one QR code on the screen.
- Knowledge checks for training sessionsTurn a training document into a live quiz at the end of the session: generate questions from the material, check what landed, and keep the whole thing on your own servers if you need to.
- Quick quizzes for team buildingA Friday quiz, an all-hands icebreaker, an offsite warm-up. Drop the join link in chat and the whole team is playing inside a minute, remote or in the room.
- Trivia nights without the answer sheetsWhether it's a regular pub quiz or a trivia night over video call, Buzrr does the marking and the leaderboard so the quizmaster can concentrate on the banter.
- Quiz your audience, liveClose a talk with a five-question quiz, run a trivia segment on a livestream, or warm up a meetup crowd. The audience joins from their phones; the leaderboard does the rest.
- Alternatives to Kahoot, Wayground (Quizizz), Slido and MentimeterHow Buzrr compares, with sources — and when another tool fits better.
- Buzrr as an open-source quiz platformWhat's in the AGPL-3.0 codebase, how it's built, and how to contribute.
- Run a self-hosted quiz serverWhat you need to run your own Buzrr instance, and what changes when you do.
Built in Public
Buzrr is open source and contributor friendly.
Free software under AGPL-3.0 — we welcome contributions from everyone. Check out our repo!
Enjoying Buzrr? Help keep it running.
Donations cover servers and chai — always optional, never required.