🎤 Clearsing
🌐 English
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Free · in your browser · no account

Learn to sing in tune. See your pitch as you sing.

The piano plays a short pattern, you sing it back. Your voice shows up as a line on a piano roll: green when you land on the note, yellow when you're close, red when you're off. 81 exercises, from a five-minute warm-up to belting, in 9 languages.

Start singing, it's free

Chrome, Edge or Safari, on a computer or a phone. Put on headphones so the piano doesn't leak into the mic. Audio is analyzed on your device and nothing is recorded.

Animated piano roll: blue target notes, a green line tracing the sung pitch and a score at the end 96%

What you get

Your pitch, live on a piano roll

While you sing, your voice is drawn as a line across the target notes. Green means you're on the note, yellow means you're a little off, red means you're far off. A finished note gets a colour and a percentage, so you don't have to wait for the end to know how it went.

81 exercises, from warm-up to belt

Lip trills and sirens to warm up, scales, arpeggios and intervals for intonation, mixed voice exercises for the top of your range, pentatonic runs, breath control and long notes with vibrato, ear training, and short melodies with lyrics. Everything is transposed to your vocal range.

A daily set that fits in 15 minutes

Daily training picks exercises for your level and range. Each exercise has three difficulty levels. Scores, your streak and the highest note you sang cleanly are saved, so after a few weeks you can see whether the top of your range is actually moving.

Nothing leaves your device

The pitch analysis runs in your browser. Your voice isn't recorded or uploaded, and your progress is stored only in the browser on this device. You don't need an account, and there are no ads.

How it works

  1. Headphones on, mic allowed

    Headphones matter more than the microphone: without them the piano comes back through the mic and muddles the tracking. The built-in mic in a laptop or phone is fine to start. A USB microphone or an audio interface (a Focusrite Scarlett, for example) with a dynamic or condenser mic tracks pitch more cleanly; you pick the input device and channel in Settings.

  2. Set your range, then listen and sing back

    Pick a voice type or take the two-minute vocal range test. Then the piano plays a short pattern, you sing it back and watch your line land on the blue blocks. Exercises are transposed so every note sits inside your range.

  3. Read the score

    Each note gets a verdict: in tune, flat, sharp or unstable. At the end you see a percentage and a short tip, for example that you were 20 cents flat on the high notes. How strict the scoring is you set yourself, from ±20 to ±100 cents (default ±50).

What you'll practice

81 exercises in 11 categories. Each has three difficulty levels and is transposed to your range.

Questions and answers

Is Clearsing free?

Yes. Every exercise, the programs and the progress view are free, and there is no account. I may add a paid Pro tier with extras later, but what you see today stays free.

Do I need to read sheet music?

No. You hear a pattern and sing it back; the target notes are blocks on a piano roll, not notation. Note names are shown on the side if you want them.

What microphone do I need?

The one built into your laptop or phone works. If you have a USB microphone, or an audio interface such as a Focusrite Scarlett with a dynamic or condenser mic, the pitch tracking is cleaner and less bothered by room noise. You pick the input device and, on an interface, the channel in Settings. Headphones matter more than the mic, though: without them the piano leaks back in.

Does it work on iPhone and Android?

Yes, in the browser. On iPhone use Safari; on Android and on a computer, Chrome or Edge. Firefox I haven't tested. There is nothing to install, though you can add it to your home screen.

Is my voice recorded or sent anywhere?

No. The pitch detection runs in your browser and the audio is discarded as soon as it's analyzed. I don't record anything, and there is no server that hears you. Progress is saved only in the browser on your device, so clearing site data clears it too.

I don't know my vocal range. Where do I start?

Take the vocal range test in Tools; it takes about two minutes. You sing a low note, then a high one, and the app finds your comfortable limits. Every exercise is then transposed to fit that range. You can also pick a preset such as tenor or alto and measure later.

How accurate is the pitch detection?

On a steady tone, within a few cents (a cent is a hundredth of a semitone). The detector listens roughly between 60 and 1100 Hz, bass to soprano. The scoring tolerance is yours to set, from ±20 to ±100 cents; the default is ±50, half a semitone. Glides and lip trills get a wider tolerance on purpose.

One exercise takes about two minutes. Try one.

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