Stem isolation
Split a track into vocals and instrumental, or into vocals, drums, bass and other on paid plans — powered by Demucs v4.
AI stems · cross-mix · mashups · mastering
Remix any song like a studio would — in minutes
Upload a track, or up to four, and describe what you want. Pull out the vocals, drop one song's voice on another's beat, build a mashup, or master it to streaming loudness — right in your browser.
Free plan included. WAV or MP3, up to 6 minutes per track on Free and 15 minutes on Studio.
Four tools, one studio
Every plan runs the same engine: separation on GPUs, then tempo, key and loudness handled for you.
Cross-mix
Put one song's vocal on another song's instrumental. Tempo and key are matched, the vocal is locked to the beat and the music ducks under the voice.
Mashups
Combine 2–4 songs. They're conformed to one tempo and key, cut on bar lines and arranged into an intro, verse, drop and outro.
AI mastering
Loudness, peaks and tone are measured, then EQ, glue compression and a true-peak limiter bring it to −14 LUFS for Spotify and YouTube. Add backing vocals if you like.
How it works
No plugins, no DAW, nothing to install.
Upload
Sign in with Google and add one track for stems or mastering, or two to four for a cross-mix or mashup.
Describe it
Pick a tool and type what you want, like "vocals from track two on track one". Live progress shows each stage.
Download
Listen in the browser, then download your MP3, WAV or stems, depending on your plan.
Simple plans
Paid plans unlock higher quality, more downloads, longer tracks and a faster queue. Pay monthly or yearly; cancel any time.
Free
€0
- 15 minutes of audio a month, up to 2 jobs a day
- 1 download a day, after a short video ad
- 192 kbps MP3 with audio branding
- Vocals + instrumental stems
- 2-track mashups
- Tracks up to 6 min / 75 MB
- Standard queue
Most popular
Creator
€14.99 / month
or €149.99 a year: 2 months free
- 500 minutes of audio a month (about 125 songs)
- 15 downloads a day, no ads
- 320 kbps MP3 and 24-bit WAV, no branding
- 6 stems: vocals, drums, bass, guitar, piano, other
- 3-track mashups
- Tracks up to 12 min / 100 MB
- Queue up to 3 jobs at once, priority queue
Studio
€24.99 / month
or €249.99 a year: 2 months free
- 800 minutes of audio a month (about 200 songs)
- Unlimited downloads, no ads
- 24-bit WAV plus the full stems archive
- 6 stems
- 4-track mashups
- Tracks up to 15 min / 200 MB
- Queue up to 6 jobs at once, VIP queue: Studio jobs start first
Questions
What files can I upload?
WAV or MP3. Each track can be up to 6 minutes and 75 MB on Free, 12 minutes and 100 MB on Creator, and 15 minutes and 200 MB on Studio. Higher-quality sources give cleaner stems, so use WAV or 320 kbps MP3 when you can.
What counts as a minute of audio?
Each job uses the total length of the tracks you upload: a 4-minute song uses 4 minutes, a 2-song cross-mix of 4-minute songs uses 8. Free includes 15 minutes a month, Creator 500 and Studio 800. Jobs that fail don't count, and the minutes reset on the 1st of each month.
How long are my files kept?
Your renders stay available for 30 days after a job finishes (7 days on Free), then they are deleted. Download anything you want to keep. The tracks you upload are deleted as soon as the job is done.
How long does it take?
Most jobs finish in a few minutes. Separation runs on cloud GPUs, and paid plans get a faster queue.
Can I use songs I don't own?
Only upload music you have the rights to use. Stems and remixes of other people's recordings are for personal practice and study unless the rights holder allows more. See the terms for details.
Do I need to install anything?
No. It all runs in your browser on desktop or phone. Sign in with your Google account to start.
Can I cancel a subscription?
Yes. Manage or cancel your plan any time from your account page; billing is handled securely by Stripe.