By Sam Ridder — I build and run StemGrab on my own hardware, on my own. Who I am.
Karaoke night, a cover, practice, a backing track for your set: upload the song and StemGrab hands you the instrumental as MP3, plus the isolated vocal.
Free, no account, no watermark. If you're wondering how can I make a song instrumental, or how to make an instrumental of a song, this is that one upload. It works the same in a phone browser as on a desktop, and tracks up to 15 minutes are free.
Full-quality stems. No account, no per-track fee. Same model and same 192 kbps (or lossless WAV) as the paid tier — tracks up to 15 minutes. The instrumental maker ai free tier runs the identical separation as the paid one, not a lower-quality preview.
Your upload is deleted the moment the split is finished. Want WAV, play-along mixes or longer tracks? The full tool is on the home page.
It runs on real graphics cards rather than a queue of credits, so a three-minute song is usually done in well under a minute. Ask for an ai instrumental maker or want to make an instrumental online: it's the same page, with nothing to install and no separate app, and the instrumental maker free tier is the same as the paid one. To convert song to instrumental online you only need the file.
45 instrumentals have been made through this exact page in the 40 days we've measured. Sitewide, across every upload in that stretch, the average song runs 4.0 minutes, the longest was 44.1 minutes, and most cluster between 2 and 4 minutes (35 of them) or right around the 1-minute mark (20) — short clips and full songs both show up. 97% come in comfortably under our limits, and not one upload in the batch landed within 10% of the ceiling before going over. The one that does bite: a 15-minute cap on any single upload. "Track is longer than 15 minutes — please trim" is the message people hit when they try a full album side or a DJ set instead of a song — 22 times in 40 days, one of the more common ways an upload gets turned away here. Chasing a backing track for a long set rather than one song? Split it into parts first; this tool is built for a single track, not a mix.
Pre-made karaoke tracks are re-recordings: different key, different feel, often behind a paywall. StemGrab strips the vocals from the original recording, so the groove, the sound and the energy stay exactly as you know them. You also get the isolated vocal from the same upload; for the drums, bass, guitar and piano as separate tracks, use the full splitter on the home page.
Turning a song into an instrumental this way keeps the original groove, not a re-recorded cover — the same take you already know, just missing the vocal.
For years the only free way to kill vocals was the phase-cancellation trick: take a stereo song, invert one channel and sum it to mono. Because the lead vocal usually sits dead-centre, it partly cancels out — but so does the bass, the kick and anything else panned to the middle, and the result is a thin, hollow, mono mess. It only ever half-worked.
StemGrab doesn't do that. Our separation model is trained specifically on voices, so it lifts the vocal out and leaves the drums, bass and instruments full and in stereo. You get a real instrumental that still sounds like the record, not a phase-mangled ghost of it. The same upload also hands you the isolated vocal, so nothing is thrown away.
For a sing-along or karaoke-style track the lead vocal is what you want gone, and on most modern, well-mixed songs it comes out cleanly. Two honest caveats so you know what to expect: harmony vocals and backing parts leave together with the lead, since the model treats all singing as one vocal, and on a busy mix a little of them can remain. And on dense, live or heavily reverbed recordings you'll hear a little more residue than on a clean studio mix — that's true of every separation tool, not just this one. If a faint vocal ghost bothers you, drop the isolated vocal stem back in at a low level: it fills the gap and masks any artefacts far better than a dead-silent instrumental.
This instrumental maker online is one upload box: no software, no export dialog. As a free online instrumental maker it costs nothing per song, with a longer track limit only behind the paid pass. You can make instrumentals from songs you already own; to make song instrumental versions for a whole set, upload them one after another, up to 10 a day, and the same steps answer how to make a song instrumental or how to get the instrumental of a song: upload it, wait, download the backing track.
Just want the isolated vocal instead of the backing track? Head to extract vocals from a song. Once you've got your instrumental, you can also practice with the backing track: mute your own instrument and play along with the rest of the band. An instrumental is audio; sheet-ready notes are something else. MP3 to MIDI converts the same song into a MIDI file with bass, guitar and piano each on their own track.
Need to extract instrumental from song for a mashup instead of karaoke? Same upload, same download — the use case doesn't change the process, only what you do with the file afterward.
This is worth understanding, because it explains every result you'll get. The model on this page is trained to recognise a voice: it works out exactly what the vocal sounds like, and the instrumental is the original mix with that vocal taken away. Nothing else is filtered, so the drums, bass and instruments are left as they were in the record. (The full splitter on the home page works differently: it separates six parts and can rebuild the backing from the five that aren't the voice.)
Two consequences follow directly from that:
The upside of the same design: nothing is notched out of the middle of the frequency range, so the drums stay punchy, the bass stays whole, and the instrumental doesn't get that hollow, phased sound that older tricks produce.
Some material is simply easier than other material. From easiest to hardest:
Two practical habits make more difference than people expect. First, start from the best copy you have: a purchased download or CD rip has detail that a low-bitrate file threw away years ago, and the model can only work with what's in the file. Second, check the loudest chorus, not the intro. Intros are sparse and always sound perfect; the last chorus with every layer playing is where you find out whether this song separates well. If it doesn't, you'll know in fifteen seconds instead of after a full render.
The output is a 192 kbps MP3 — fine for singing along, rehearsing or a backing track through a PA. Tracks up to 15 minutes are accepted, and your files are deleted automatically within 45 minutes (24 hours with any pass, paid or free — that longer window is part of what the pass is for) of the job finishing.
To make instrumental online you don't need anything else: as an MP3 to instrumental converter it also takes WAV, FLAC, M4A, AAC, OGG, Opus, AIFF and WMA, and video files like MP4, MOV and MKV, where the audio is pulled out first. Used as an instrumental online maker, the free tier gives tracks up to 15 minutes at the same quality as the paid one. It's also a vocal splitter: both files come from the exact same upload, no second pass needed. The language of the vocal doesn't matter either; a K-pop track goes through the same process as an English one.
Want the reverse? Used as an acapella maker, the isolated vocal comes back alongside the instrumental, not instead of it; the extract vocals from a song page is built around that side. For drums, bass, guitar and piano as their own files too, use the full splitter on the home page. Note that the words themselves aren't transcribed here; only the sung audio is pulled away from the backing.
Upload the song — the vocals are removed and everything else (drums, bass, guitar, keys) stays, so you get a full backing track, sometimes called a "minus track", back as one file. Used as a playback maker for rehearsals it works the same way.
MP3, WAV, FLAC, M4A, AAC, OGG, Opus, AIFF and WMA, and video files like MP4, MOV and MKV — from a video we pull the audio out ourselves. Anything you can convert to one of these works too. Up to 2 GB and 15 minutes per track.
Two files: the instrumental and the isolated acapella, each as a 192 kbps MP3. That's fine for singing along, rehearsing or a backing track through a PA. If you need lossless WAV, the full tool on the home page offers it.
Usually well under a minute per song: the separation runs on a real GPU, not a queue of credits.
Not on this page: you get the instrumental and the acapella. For drums, bass, guitar, piano and other as separate downloads, use the full stem splitter on the home page. That's also the place for a guitar-only backing: it returns a standalone guitar stem, so you can mix your own backing from just the stems you want.
Harmonies and backing vocals leave with the lead on most songs, but on a busy mix a little can remain. Nudge the isolated vocal stem back in at a low level to mask it, or try a cleaner studio version of the track.
It works, but a live recording is harder: crowd noise and room reverb sit in the same space as the singer, so a faint ambient layer can remain in the instrumental.
No. It's a song instrumental maker, not an instrumental song maker in the sense of writing new music: it extracts the instrumental from an existing song. Upload a track with vocals and it comes back without them.
Yes — upload the cover recording the same as any other song and the vocals are pulled out, leaving the backing as your instrumental.
It's the same free split. The karaoke maker adds a lyrics step that turns the result into a karaoke video; this page keeps it to the audio.
The tool separates the audio; what you do with the result depends on who owns the song — make sure you have the rights before releasing or publishing anything commercially.
Deleted straight after processing; results wiped within 45 minutes (24 hours with any pass, paid or free — that longer window is part of what the pass is for). See the privacy policy.
By Sam Ridder — I build and run StemGrab on my own hardware, on my own. Who I am.
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