Do I need a paid plan to split a song?

No. All 3 presets on the Split tab — Karaoke at 2 parts, Band at 4 parts and Detailed at 6 parts — are available on the free plan. What a paid plan adds is the instrument catalogue and the deeper decomposition packages, which lesson two covers.

How much does a split cost?

660 credits per minute of source audio, with a 10-credit floor for very short clips. A 3 minutes 30 song is about 2,310 credits. You are charged for the length of the song, not for the number of parts you get back. A two-stem split and a sixteen-stem package of the same track cost the same.

Does a six-part split cost more than a two-part one?

No. You are billed for the length of the song, not for how many files come back. That means there is no financial reason to take a shallower split than you want — though there is often a quality reason, which lesson three explains.

Can I close the tab while it runs?

Yes. The split runs on the server, and the job is waiting in your jobs list when you come back. Nothing is lost by navigating away.

Stem Splitter

Your first split

Q: Can I download everything at once?

No. There is no zip and no download-all — each part downloads from its own row. If what you want is all of them together, function(){throw Error("Attempted to call OPEN_ALL_IN_STUDIO_LABEL() from the server but OPEN_ALL_IN_STUDIO_LABEL is on the client. It's not possible to invoke a client function from the server, it can only be rendered as a Component or passed to props of a Client Component.")} loads the whole job into the Studio as one track per part instead, without downloading anything.

One song in, 4 parts out. The preset to start with, what it costs, and how the files come back — before any of the theory.

Lesson 1 · start · 4 min read

Open Stem Splitter

Stem separation takes a finished song — one mixed file, where every instrument is already blended into the same waveform — and gives you back the parts as separate audio. This lesson does it once, with the simplest settings, so you have a real result in front of you before anything explains itself.

Bring the audio in

Upload a file or paste a link. One thing is worth knowing now and the rest can wait: the tool is working from what you give it, and it cannot recover detail that a bad copy already threw away. If you have the original file and a version you downloaded from somewhere, use the original.

The three presets

The Split tab is the one that opens first, and it does exactly what its own line says: common splits, one click. You are not choosing instruments here — you are choosing how finely to cut.

Preset: What you get
Karaoke — 2 parts: Vocals and everything else. The fewest cuts, which is also why it is the cleanest — two-way separation has the least to get wrong.
Band — 4 parts: Vocals, drums, bass and everything else. The default the tool opens on, and the right answer for most jobs.
Detailed — 6 parts: Adds piano and guitar as their own parts. More parts is not automatically better — a song with no distinct piano gets a piano file with something else in it.

The preset packs, all of them free on every plan.

Tip

Start with Band. It is what the tool opens on, it is the split most work actually needs, and if it is not enough you will know precisely what you were missing — which is a much better question to bring to lesson two than “which one is best”.

What it costs

Stem splitting is metered from credits at 660 credits per minute of source audio, on every public plan. A 3 minutes 30 song comes to roughly 2,310 credits, and very short clips are charged a 10-credit floor. The tool quotes the figure before it spends anything, and the quote is an estimate — the server is the authority.

Note

You are charged for the length of the song, not for the number of parts you get back. A two-stem split and a sixteen-stem package of the same track cost the same. Every public plan meters at the same rate and differs only in how many credits it includes; only Enterprise carries custom terms. There is no unlimited stem plan.

Getting the files out

Each part comes back as its own row, with a player and a download button. Play them first. The part you came for is the one to judge — a vocal you can use is a successful job even if the “other” stem is a mess, and it usually is a bit of a mess.

Every stem downloads on its own, from its own row. There is no zip and no download-all.
function(){throw Error("Attempted to call OPEN_ALL_IN_STUDIO_LABEL() from the server but OPEN_ALL_IN_STUDIO_LABEL is on the client. It's not possible to invoke a client function from the server, it can only be rendered as a Component or passed to props of a Client Component.")} loads the whole job into the Studio as one track per stem — which is the fastest route to a rough mix, and it downloads nothing.
function(){throw Error("Attempted to call OPEN_IN_STUDIO_LABEL() from the server but OPEN_IN_STUDIO_LABEL is on the client. It's not possible to invoke a client function from the server, it can only be rendered as a Component or passed to props of a Client Component.")} on a single row does the same for one stem.

Careful

There is genuinely no “download all” button, so do not go looking for one. Four parts is four clicks. If that is the wrong shape for what you are doing, function(){throw Error("Attempted to call OPEN_ALL_IN_STUDIO_LABEL() from the server but OPEN_ALL_IN_STUDIO_LABEL is on the client. It's not possible to invoke a client function from the server, it can only be rendered as a Component or passed to props of a Client Component.")} is the route that skips downloading entirely.

What to read next

You now have a split. The next lesson is the one that changes how you use this tool: the Split tab you just used is one of three, and the other two answer a completely different question — not “cut this song into parts” but “give me exactly this instrument”, or “give me everything except this one”.

Questions

What people ask about this

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