Add your racers
Type or paste names, one per line, or fill in numbered marbles. Every marble gets its own colour, which you can change.
Marble Race Maker
Type up to 100 names, pick one of 17 tracks or press Surprise me for a brand-new course, and press Start. A camera follows the leader, a live leaderboard keeps score, and Make video turns the race into a finished clip with a title card, sound and a podium.
Open Marble Race Maker →How to make a marble race
Pick a track and start
Pick a track from the gallery, from a quick dash to a long marathon, or press Surprise me for a new course, then press Start.
Make the video
Press Make video. You get the whole race with sound, a title card and a podium as an MP4, in vertical, square or widescreen, ready to post.
Tips for a great marble race video
Keep the seed
The same racers, track and seed always produce the same race. Note the seed to replay a race or export it again in another format.
Vertical for short videos
9:16 at 1080×1920 fills a phone screen. Use 16:9 for widescreen videos, where the leaderboard sits beside the track.
Bigger fields, shorter races
With 50 or more marbles, end the race when the top three finish to keep the video short and the ending exciting.
Fair starts
Start places are shuffled by the seed, so the order you type names in gives nobody a head start.
Surprise me
Surprise me builds a new course and a new race from two seeds. Roll until you like it, then copy the race link to keep or share that exact race.
Preview first
Use the 540p preview quality for a quick check, then export the final video at 1080p.
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Marble race maker FAQ
What is a marble race simulator?
It drops a field of marbles down an obstacle track using real physics: gravity, bounces, friction and collisions between marbles. Each marble carries a name, so the finishing order is a fun way to rank people, teams or ideas.
How many marbles can race?
From 2 to 100. Type or paste the names one per line, or separated by commas, or fill in numbered marbles with one click.
Is the race random?
Every race comes from a seed. Start places are shuffled by it and the physics runs at a fixed time step, so a race cannot be steered, and the same racers, track and seed always replay the same race.
Can I save the race as a video?
Yes. Press Make video and the whole race, from an optional title card through the countdown to a podium and the full results, is made into an MP4 in 9:16, 1:1 or 16:9 at 1080p or 540p and 30 or 60 fps, with race sounds or silent. You see the progress and can cancel at any time. Browsers that cannot write MP4 get a WebM file.
Which tracks are there?
Seventeen: grand tour, zig-zag ramps, peg forest, spinner tower, funnel cascade, see-saw valley, long drop, quick dash, slalom, spiral funnel, plinko field, bumper garden, split lanes, windmills, pinball, pure gravity and marathon. Each shows its length and difficulty. Surprise me builds a new course from a seed.
Can I use it to pick a random order?
Yes. Paste a list of names, run the race and copy the finishing order. It works well for turn orders, team picks and giveaways shown live.
Will every marble reach the finish?
Yes. Every track, including every Surprise me course, is built so the whole field can roll through. If a marble ever stops moving it gets a gentle push, and in the rare case it still cannot move the race ends fairly, ranking it by how far it got.
Is it free?
Yes. No sign-up, no watermark on videos and no limit on races. Everything runs in your browser.
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