Free
$0forever
1 video a week
- Every song, voice and theme
- 1080×1920 vertical video at 60fps
- Race Studio: pick who sings and when
Marble races that sing.
Pick a song, give every racer a marble and an AI voice, and whoever leads the race sings. You get a vertical video ready for TikTok, Reels and Shorts in about a minute.
Free accounts make 1 video a week. No card needed.
From song to video in three steps
Pick the song
Search anything or start from the charts, then slide a window over the waveform to choose the 15, 30 or 60 seconds you want.
Cast your racers
Choose two to six AI voices. Each gets a marble. Whoever is in front sings, and the voice changes as the lead changes.
Make and post
Your browser draws the race and records it with the song. Download it and post it, no editing needed.
Built for the way these videos get watched
The leader always sings
No dead air and no marble singing from the back. The mic stays with the winner until the last marble finishes.
Races built around your plan
Want one voice from 0:00 to 0:15 and another after? Race Studio builds the race so they really lead at those times.
Collisions are real
Marbles bounce off pegs, windmills and each other. They never get stuck, and the race stays close without anyone slowing down on purpose.
Made for vertical
Full 1080×1920 at 60fps, with titles and labels kept clear of the buttons and captions that TikTok, Reels and Shorts draw on top.
Twelve themes
Abyss, Lagoon, Neon, Aurora, Ember, Candy and six more, each with its own colors and lighting.
Rendered on your device
Your video is drawn and recorded in your own browser, so there is no render queue to wait in.
Simple pricing
Every plan gets the same renderer, voices and themes. Only the number of videos a week changes.
Plus
$5a month
7 videos a week
- Everything in Free
- Enough for a post a day
- Cancel any time
Unlimited
$10a month
Unlimited videos
- Everything in Plus
- Make as many as you can post
- Your profile pic and @name in every video
- Fair-use ceiling of 100 a week
Questions
Do I need an account?
You can build a race and watch the preview without one. You need a free account to make the video, so your daily limit is tracked.
What counts as a week?
The last 7 days, not a calendar week. If you make your free video on Monday at 3pm, the next one is available the following Monday at 3pm.
What if making a video fails?
If we can't generate the voices, the video doesn't count against your limit and you can try again straight away.
Where can I post the video?
Anywhere that takes vertical video. It is 1080×1920 at 60fps, saved as an MP4 in Chrome, Edge and Safari.
Can I cancel?
Any time, from your account page. You keep your plan until the end of the period you paid for.
Which songs and voices can I use?
Any song that Apple Music and our audio source can find, with a large library of AI voices to choose from.