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Acapella Maker

Commercial use OK 380+ models No watermark No sign-up needed
Model:
+ GPT-5, Claude, Gemini

Drag and drop an audio file here, or click to browse

Supports MP3, WAV, FLAC, OGG up to 50MB

No file selected
Upload a song to separate it into individual stems: vocals, drums, bass, and other (instruments). Each stem gets its own player and download button.
~1,000 tokens base + ~50/sec of audio (~3K for a 1-min track)
Separated Stems

What You Can Do

Extract Vocals

Isolate the vocal track from any song. Perfect for creating acapellas, remixes, or karaoke versions.

Get Instrumentals

Remove vocals to get a clean instrumental track. Use it for background music, covers, or practice sessions.

4 Separate Stems

Split into vocals, drums, bass, and other instruments. Each stem gets its own audio player and download button.

Multiple Formats

Upload MP3, WAV, FLAC, or OGG files up to 50MB. Works with any audio format and quality level.

Fast Processing

AI-powered stem separation runs on our GPUs. Most tracks are processed in under a minute.

Download Each Stem

Every separated stem is available for individual download. Get just the vocals, just the drums, or all four stems.

How to Use

Upload your audio

Drag and drop an audio file or click to browse. Supports MP3, WAV, FLAC, and OGG up to 50MB.

Click Remove Vocals

Hit the button and our AI will analyze the audio and separate it into individual stems using deep learning.

Preview each stem

Listen to the separated vocals, drums, bass, and other instruments individually. Each stem has its own audio player.

Download your stems

Download any or all of the separated stems. Use them for remixes, karaoke, music production, or practice.

Token Costs

ActionTokens per useOutput
Stem Separation~50/sec4 stems: vocals, drums, bass, other

Free.ai has 400+ AI tools beyond vocal removal.

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Get an acapella from any song. Drop a track, AI separates the vocal stem in seconds. Free, unlimited, no watermark. Demucs MIT.

How to Use Acapella Maker

1
Enter your input

Type text, upload a file, or describe what you want. No account needed.

2
Click generate

Our AI processes your request in seconds using the best open-source models.

3
Download & share

Download, copy, or share your result. Free for personal and commercial use.

Use this tool via API

Automate this tool from your own code. OpenAI-compatible REST endpoint, Bearer-token auth, no extra SDK required. Token costs match the web interface.

API Documentation Get API Key 
curl -X POST https://api.free.ai/v1/music/generate/ \
  -H "Authorization: Bearer sk-free-..." \
  -H "Content-Type: application/json" \
  -d '{"prompt": "upbeat synthwave instrumental", "duration": 30}'

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Vocal Remover

Acapella Maker — FAQ

Drop in any song, AI separates the vocal stem and gives you a clean acapella — vocals only, no music. Powered by Meta's Demucs (MIT license). Free, unlimited, no watermark.

Remixes (vocals over a new beat), mashups (one song's acapella over another's instrumental), karaoke harmony practice, music transcription, lyric study, voice analysis, and AI voice cloning training data.

Identical underlying model — both call /v1/audio/separate/ with `mode=vocals`. Different SEO surface for the different ways people search ("acapella maker" vs "isolate vocals"). Same output WAV.

MP3, WAV, M4A, FLAC, OGG, AIFF — anything ffmpeg can decode. Max 50 MB (~5 min of 128 kbps MP3).

6-15 sec per minute of audio. A 3-minute song completes in 25-40 seconds total including upload + download.

Excellent on dry studio vocals (think pop / R&B). Good on most tracks. Weaker on tracks with heavy reverb tails, hard-panned vocals, or vocals doubled with effects (e.g., autotune harmonies). Demucs is near-perfect but not magic.

Personal use is generally fair-use OK in most jurisdictions. Publishing the acapella, selling it as a sample pack, or releasing the remix commercially requires sync / mechanical / sample licenses. You're responsible for downstream use.

About 3,000 tokens per song, flat per-request. Daily free-pool tokens cover anonymous use; signed-in users get 5K/day.

Yes — /music/stem-splitter/ runs Demucs once and returns BOTH the acapella and the instrumental (plus drums and bass) in a single ZIP. More efficient if you want both stems.

WAV at 44.1 kHz, 16-bit stereo. Use the format dropdown to download as MP3 instead if you need a smaller file.

Same Demucs model, same audio quality. Moises charges a monthly subscription with a track-count quota. Free.ai is pay-with-tokens (or free-pool), unlimited within the daily allowance, no subscription required.

Yes — POST audio to /v1/audio/separate/ with `mode=vocals`, get a job_id back. Poll /v1/audio/jobs/<id>/ for completion + the WAV URL. Docs at /api/.

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