Content is loading…
Tune guitar, bass or ukulele by microphone with a precise cents meter.
Press start and allow microphone access
Pluck a string and the tuner shows the note, frequency and how many cents sharp or flat you are.
Works for guitar, bass, ukulele or any instrument. Use a quiet room and let each note ring for best accuracy. All processing happens locally — audio never leaves your device.
Tune your guitar, bass, ukulele or any instrument using your microphone. Real-time pitch detection with a precise cents meter, tuning presets (Standard E, Drop D, Half-step down, Open G, Ukulele, Bass and Chromatic), an adjustable A4 reference pitch and playable reference tones for every string. Runs entirely in your browser. Your audio never leaves your device — nothing is uploaded or recorded.
Guitar Tuner provides real-time pitch detection directly in the browser using your device's microphone, featuring a precise cents meter and multiple tuning presets for guitar, bass, and ukulele. It runs entirely client-side without requiring software installations or account signups, ensuring your audio is never recorded or uploaded.
Good to know: Users requiring advanced audio analysis suites or specialized hardware integrations may need dedicated professional software.
Learn how to tune your guitar, bass, or ukulele using your browser microphone and real-time pitch detection.
Open the online guitar tuner tool
Navigate to the Guitar Tuner web tool directly in your browser without downloading any software.
Grant microphone access to your browser
Allow the browser to use your microphone for real-time pitch detection. Your audio stays secure on your device and is never recorded or uploaded.
Select your tuning preset or instrument
Choose from available presets like Standard E, Drop D, Half-step down, Open G, Ukulele, Bass, or Chromatic depending on your instrument.
Play a string and check cents meter
Pluck an individual string on your instrument and watch the precise cents meter to see if you are sharp, flat, or in tune.
Adjust string tension until tuned
Tighten or loosen your instrument's tuning pegs until the cents meter centers and matches your desired pitch.
Estimated time: PT2M
Share this tool
Split audio files into chunks by time or count. 100% browser-based, no upload.
Convert audio to text with AI. Chunked processing, pay per actual usage.
Record voice or audio from your microphone and download it instantly.
Convert audio files between formats. WAV output, 100% browser-based.
Trim and cut audio files to any duration. Precise start/end control.
Merge and combine multiple audio files into one. Browser-based, no upload.
Convert text or Markdown to a Word .docx file with live preview, RTL, and page-setup options.
Draw a Secret Santa with exclusions and share a private reveal link for each person.
Make custom bingo cards from your own words — play, print, or share a link.
Convert images to video with the Ken Burns zoom/pan effect. Add music and export as WebM.
Load and compare multiple URLs side by side in resizable iframes.
Rank anything with quick 1-v-1 matchups → a full ordered list you can share.
Convert Markdown to a fully customized, RTL-ready PDF.
See your public IP address plus full location, ISP, ASN, timezone, coordinates, and more.
