Autotune Free Online: AI Auto-Tune for Vocals
Snap vocals to the right pitch.
Upload vocals and lock them to the correct key and scale — from subtle polish to full T-Pain, all in your browser.
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Highlights
Intelligent Pitch Detection
YIN algorithm detects your vocal pitch frame-by-frame with sub-cent accuracy. No cloud dependency — all processing runs locally.
T-Pain to Natural
From the iconic robotic hard-snap to barely-there studio polish. Choose from presets or fine-tune the correction speed yourself.
Every Key & Scale
Major, Minor, Pentatonic, Blues, Dorian, Mixolydian, and Chromatic. Select your key and scale, and the engine quantises every note.
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How it works
Upload your vocal
Add a vocal file (MP3, WAV, M4A, FLAC or OGG) and, if you like, a backing beat.
Set key, scale & preset
Choose the musical key, scale and how aggressive the correction should be.
Process & download
Preview the tuned result and download it as WAV.
About the Autotune Free Online: AI Auto-Tune for Vocals
By Ismail Farooq, founder of SongUp AI · Updated 2 November 2026
Completely free: free account, no card needed, no credits, no limit. It runs in your browser, so your audio stays on your device.
Neural Auto-Tune is autotune, free online: it snaps a vocal to the notes of a chosen key and scale. Upload a vocal, check the key it detects and pick a scale — major, minor, pentatonic, blues, Dorian, Mixolydian or chromatic — and set how fast the correction reacts.
A fast correction speed gives the hard, robotic “T-Pain” effect; a slow one gently nudges notes for natural-sounding pitch correction. Pitch is tracked frame by frame with the YIN algorithm, and all processing runs locally in your browser.
What you get: 12 keys and 7 scales, four speed presets (Natural, Moderate, Hard Tune, T-Pain) plus a 0–100 slider, a live A/B switch to hear the original, and an optional backing beat that is levelled under your vocal automatically. You download a WAV of the result, and with a beat you also get the tuned vocal on its own.
What you can use it for
- ✓Tighten the pitch of a home-recorded vocal before mixing
- ✓Create the classic hard-tuned trap and pop vocal effect
- ✓Check which notes of a take drift from the key
Common questions, answered
Frequently asked questions
How do I get the T-Pain effect?
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Choose the T-Pain preset, which sets the correction speed to 100 so notes jump instantly to the nearest note in the scale.
How do I keep the vocal natural?
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Use a slower correction speed and make sure the key and scale match the song, so the tool only moves notes that are genuinely off.
What if I don’t know the song’s key?
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The tool detects the key from your vocal and selects it for you. If it sounds wrong, change the key by hand, or run the backing track through Chord Recognition to find it.
Does it work on instruments?
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It is designed for monophonic sources such as a solo voice. Chords and full mixes will not tune correctly.
Is this autotune free online?
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Yes. It runs in your browser and is free with a free account; your vocal is not uploaded.
Is there a free online version of Auto-Tune Pro, Artist, Access or EFX+?
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No. Those are Antares desktop plugins that run inside a DAW, and Antares does not offer an online or free version of them. This page is a free browser alternative: it does the same job of snapping a vocal to a key and scale, with a speed control that goes from a gentle, natural correction to the hard-tuned effect, without installing anything. The detailed comparison is in SongUp AI vs Antares Auto-Tune.
How do I autotune a song online for free?
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Upload the vocal, check the detected key and scale, set the correction speed and choose Render & Download. The tuned vocal downloads as a WAV file you can put back into your mix. It works on a solo voice, not on a full mix with instruments; to tune a vocal that is already inside a song, extract it first with the free Acapella Extractor.
Is this AI autotune?
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It is automatic pitch correction: you upload a vocal, and it tracks the pitch, detects the key and moves each note to the nearest note in the scale, with no manual note editing. It keeps your own voice. It does not replace your voice or sing for you.
Can I autotune a vocal over a beat online?
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Yes. Upload the beat as the optional second track and you hear the tuned vocal over it while you adjust the key, scale and speed. The tool sets the beat’s level under the vocal, and the WAV you download is the full mix, with a separate link for the tuned vocal alone.
Can I record my voice on this page?
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Not yet: this page takes a file. Record with your phone’s voice memo app or any recorder, then upload it as MP3, WAV, M4A, FLAC or OGG. Record the vocal without music playing out loud, because the tool tunes a solo voice.