Tune a vocal in seconds with this free auto-tune online tool. Upload a take, choose a key and scale, and set how hard it corrects — from subtle, natural pitch correction to the classic robotic “T-Pain” effect. Preview before and after, then download a WAV or MP3. It runs entirely in your browser, so your vocal is never uploaded.
No plugins, no signup, no watermark — just drop in a vocal and tune it.
Auto-Tune & Vocal Pitch Correction
Auto-tune a vocal free, right in your browser. Upload a take, pick a key and scale, and set the strength — from subtle, natural pitch correction to the hard robotic “T-Pain” effect. Compare before/after and download a WAV or MP3. Nothing is uploaded — it all runs on your device.
Best on a solo vocal. Pitch correction works on one voice at a time, so upload an isolated vocal (not a full mix). Got a full song? Pull the vocal out first with the AI Stem Splitter, tune it here, then remaster with AI Mastering. Everything runs locally — your audio never leaves your browser. Set Retune speed high and Chromatic for the classic hard-tuned effect; lower it for natural correction.
How to auto-tune a vocal
- Upload a solo vocal. Drag in an MP3, WAV, M4A, OGG or FLAC. One voice at a time works best.
- Pick the key and scale of your song — or leave it on Chromatic to snap to the nearest note without knowing the key.
- Set Strength and Retune Speed. Higher = more corrected and more robotic; lower = natural.
- Auto-Tune, compare, download. A/B the before and after, then save a WAV or MP3.
Getting the sound you want
Two controls shape the effect:
- Strength — how far each note is pushed toward the correct pitch. 100% snaps fully to the scale; lower values keep some of the original, more natural pitch.
- Retune Speed — how fast it moves to the target. Hard snaps instantly for the signature auto-tuned/T-Pain sound; Natural glides between notes so corrections are transparent.
For the hard T-Pain effect, use Chromatic, Strength 100% and Retune Speed high. For invisible correction, choose the song’s actual key and scale, and dial Retune Speed down to Natural.
Pick the right key and scale
Setting the key and scale to match your song makes correction cleaner, because the tool only snaps to notes that belong in the key — so a slightly flat note lands on the right pitch instead of the nearest chromatic semitone. If you’re not sure of the key, Chromatic is a safe default (it snaps to the nearest note of any kind), or find it first with our BPM & Key Finder.
Works best on a solo vocal
Pitch correction analyses one voice at a time, so it shines on an isolated vocal — not a full mix. If your vocal is inside a finished song, separate it first with the AI Stem Splitter, auto-tune the isolated vocal here, then rebuild and master your track. To warm up or thicken the tuned vocal afterwards, try the Online Equalizer.
Free, private, in your browser
Everything runs locally with the Web Audio API — your vocal never leaves your device, there’s no signup, and the WAV/MP3 export has no watermark. Making music from scratch? Generate original AI songs with Solmi, then tune and shape the vocals here.
Frequently asked questions
How do I auto-tune my voice for free?
Upload a solo vocal here, pick a key and scale (or Chromatic), set the strength, and click Auto-Tune. Preview the result and download a free WAV or MP3 — no signup, and nothing is uploaded.
Can I get the T-Pain / hard auto-tune effect?
Yes. Choose Chromatic, set Strength to 100% and Retune Speed high — that snaps every note instantly for the classic robotic auto-tuned sound.
Does my audio get uploaded?
No. All the pitch correction runs in your browser with the Web Audio API, so your vocal never leaves your device.
What key and scale should I choose?
Match your song’s key and scale for the cleanest, most natural correction. If you don’t know it, use Chromatic (it snaps to the nearest note of any kind), or detect it with our BPM & Key Finder.
Can I auto-tune a full song?
Pitch correction works on one voice at a time, so a full mix won’t tune well. Isolate the vocal first with the AI Stem Splitter, tune it, then remix and master.
What formats can I upload and download?
Upload MP3, WAV, M4A/AAC, OGG or FLAC. Download your tuned vocal as a WAV or a 256 kbps MP3.