Tune your violin in seconds — free mic tuner
A chromatic tuner that listens through your mic and shows the nearest note with cents precision. Standard GDAE tuning with reference tones for each string. Works for fiddle too.
How to tune a violin cleanly
Bow strokes often give a cleaner signal than plucking. Start with the A string and work outward.
Allow mic access and start
Click the button below and allow microphone access. The tuner begins detecting immediately. Bow or pluck one string at a time.
Bow close to the nut
Draw a steady bow stroke on one string, away from the bridge but not too far toward the scroll. A smooth, even bow speed gives the cleanest fundamental for the detector to read.
Watch the note and needle
If the display shows the right letter, adjust the peg or fine-tuner until the needle centres on green. Within two or three cents is more than close enough for any ensemble or recording.
Bow or pluck each string in turn
G is the hardest to read because its overtones are strong relative to the fundamental. Bow slightly faster and stay near the nut. If the octave jumps, bow with less weight.
Violin strings, notes and frequencies
Standard violin tuning is GDAE in perfect fifths. The A string at 440 Hz is the standard concert pitch reference.
| String | Note | Frequency |
|---|---|---|
| G (4th) | G3 | 196.00 Hz |
| D (3rd) | D4 | 293.66 Hz |
| A (2nd) | A4 | 440.00 Hz |
| E (1st) | E5 | 659.25 Hz |
The Tempo & Delay Cheat Sheet
Tuned up and recording? Keep this one-page reference by the desk — genre tempos and tempo-synced delay times, all on a page.
- Tempo ranges for 16 genres
- Delay times for every common BPM
- The dotted-eighth and triplet values pros actually use
- Reverb pre-delay and LFO sync tricks
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Once you are in tune
Tuning is step one. Here is what players and producers reach for next.
Questions, answered
Can I use a bow instead of plucking?
Yes, and bowing usually gives a cleaner, more stable signal than pizzicato. Draw a slow, even bow stroke on one string while watching the display settle.
Does it work for viola?
Yes. Viola strings are CGDA (C3, G3, D4, A4). Use the Chromatic Tuner and tune each string to its target note, or tune your C string by ear against the G reference tone here.
Does it work for fiddle?
Fiddle and violin are the same instrument with the same standard GDAE tuning. This page works identically for both.
Do I need to download anything?
No. The tuner runs entirely in your browser. Mic audio is processed locally and never uploaded or stored.
Honest reviews, free tools and guides for music producers. Built by people who actually make music, for people who actually make music.