Free online tools for singers. Measure your vocal range, find your voice type, check which note you are singing, convert a frequency to a note and work out intervals, semitones and octaves. Every tool runs in your browser on phones and computers, with no sign-up and no download. The microphone tools analyse sound on your device: nothing is recorded or uploaded.
Not sure where to start? Begin with the vocal range calculator: sing your lowest and highest notes to get your range in octaves, your closest voice type and the famous singers whose range is nearest to yours.
Vocal Range Tools
Vocal Range Calculator
Microphone or choose notes
Sing or choose your lowest and highest notes to see your vocal range, octaves, closest voice type and the famous singers with a similar range.
Octave Range Test
Microphone or choose notes
Find out how many octaves your voice covers, from your lowest to your highest steady note, and how your range compares with typical singers.
Octave Range Visualizer
No microphone
Pick any two notes or a voice type preset and see the range on a piano-style note map, with the span in semitones and octaves.
Vocal Range Chart
No microphone
All seven voice types on one keyboard, from soprano to bass. Play each range and add your own notes to see which type you match.
Vocal Range Comparison
Microphone or choose notes
Compare your range with famous singers: the closest matches, the notes you share and how much of each singer’s range you cover.
Voice Type and Voice Tests
Voice Type Test
Microphone or choose notes
Measure your range and see how closely it matches soprano, mezzo-soprano, alto, tenor, baritone and bass, with your closest type.
Vocal Register Test
Microphone or choose notes
Map your chest voice and head voice and see where they overlap or leave a gap: your bridge, your break and what to practise.
Vocal Tier Test
Microphone
Rate your voice from tier 1 to 5 in about three minutes, scored on range, pitch accuracy and how steadily you hold a note.
Voice Hz Test
Microphone
Find the frequency of your speaking or singing voice in Hz: average and median pitch, typical range and the nearest note.
Pitch and Note Tools
Pitch Detector
Microphone
See the note you are singing or playing in real time, with the frequency and how many cents sharp or flat you are.
Note Detector
Microphone or audio file
Find out what note is this: identify notes from your microphone or an audio file and see them in order on a staff and a piano.
Frequency to Note Converter
No microphone
Convert any frequency in Hz to the nearest note, octave and cents, or a note to its frequency, with a full chart from C0 to B8.
Music Theory Calculators
Music Interval Calculator
No microphone
Name the interval between any two notes, such as a perfect fifth or a major third, with the distance in semitones.
Semitone Calculator
No microphone
Count the semitones between two notes, with the interval, frequency ratio and cents. Useful for changing the key of a song.
Octave Calculator
No microphone
Work out how many octaves separate two frequencies, or find a frequency one or more octaves higher or lower.
Which Tool Should I Use?
| I want to… | Use |
|---|---|
| Find my vocal range | Vocal Range Calculator |
| Know if I’m a soprano, alto, tenor, baritone or bass | Voice Type Test |
| See which note I’m singing right now | Pitch Detector |
| Identify the notes in a recording | Note Detector |
| Know how high or low my speaking voice is | Voice Hz Test |
| Find where my voice cracks or breaks | Vocal Register Test |
| Get a rating for my singing | Vocal Tier Test |
| See which singers have a range like mine | Vocal Range Comparison |
| Sing a song in a lower or higher key | Semitone Calculator |
How to Get Accurate Results
The microphone tools detect pitch from your voice many times a second, and the range tools only save a note once you hold it steadily for about a second, so slides, cracks and background sounds don’t count. A few habits make the results much more reliable:
- Warm up for a few minutes before testing your range.
- Use a quiet room and keep the phone or laptop 30–50 cm from your mouth.
- Sing a clear “ah” and hold each note; don’t push or strain for extreme notes.
- Allow microphone access when your browser asks. If nothing happens, check the site’s microphone permission in your browser settings.
- Test on two different days and trust the range you can repeat.
Frequently Asked Questions
Are these tools free?
Yes. All tools are free, with no account, no download and no limit on how often you use them.
Do the tools record my voice?
No. The sound from your microphone is analysed in your browser while you use the tool. Nothing is recorded, saved or sent to a server.
Do they work on a phone?
Yes. The tools are built for phones as well as computers and work in current versions of Chrome, Safari, Edge and Firefox. Allow the microphone when asked.
How accurate is an online vocal range test?
For clear, steady notes the detected pitch is accurate to within a few cents, far less than one semitone. The bigger errors come from background noise, notes that are too quiet and testing without a warm-up.
What is the difference between vocal range and voice type?
Vocal range is the span from your lowest to your highest note. Voice type also depends on where your voice is comfortable, where it changes register and how it sounds, so two singers with the same range can be different types.
Where are the BPM, chord and audio calculators?
They have been retired so this site can focus on singing and voice tools. Their old addresses now lead to this page.