JustATuner

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

JustATuner is ranked #2 of 32 in musical tuner apps on Inferse. It runs on Linux, macOS, Windows. There is a free plan.

Compared on musical tuner apps

Free plan: Yesstohrermusic.com
Strobe display: Yesstohrermusic.com
Custom reference pitch: Yesstohrermusic.com
Intonation monitoring: Yesstohrermusic.com
Available platforms: desktopstohrermusic.com

Facts

Product: JustATuner is a free, open-source desktop tuner for musicians with a stroboscopic tuner and a just-intonation drone.stohrermusic.com · 2 Oct 2026
Stroboscopic tuner: Its chromatic tuner has 12 wheels, one for each pitch class, with seven concentric rings per wheel.stohrermusic.com · 2 Oct 2026
Pitch settings: Users can configure reference pitch, instrument transposition, per-wheel cents bias, and per-ring octave bias.stohrermusic.com · 2 Oct 2026
Drone practice: The drone supports root, root-plus-fifth, major-triad, and minor-triad voicings, with a pure sine or harmonic-stack sound.stohrermusic.com · 2 Oct 2026
Interval analysis: A live meter reports the just-intonation interval and cents difference, and marks LOCKED within 5¢ of just intonation.stohrermusic.com · 2 Oct 2026
Visualizer: The drone’s Lissajous display visualizes interference between the played note and drone, with configurable phosphor color, trace thickness, trail count, and resolution.stohrermusic.com · 2 Oct 2026
Instrument support: Transposition options include Concert, B♭, E♭, and F, and pitch-detection presets cover saxophones, voice, brass, and strings.stohrermusic.com · 2 Oct 2026
Microphone and headphones: The app listens to a microphone for pitch detection; the maker recommends a quality microphone and strongly recommends headphones when the drone is on.stohrermusic.com · 2 Oct 2026
Supported systems: The maker lists Windows, macOS on Apple Silicon, and Linux; the macOS app is for M1, M2, M3, and M4 chips.stohrermusic.com · 2 Oct 2026
Linux requirement: Linux use requires PortAudio, and the downloaded binary may need its executable permission set.stohrermusic.com · 2 Oct 2026
Downloads and signing: Downloads are hosted on GitHub, and the maker says the app is not signed with a developer certificate, so the operating system may show a warning.stohrermusic.com · 2 Oct 2026
Source code: The source code is available on GitHub for inspection.stohrermusic.com · 2 Oct 2026
Support: The maker lists [email protected] for questions or feedback.github.com · 2 Oct 2026
Maker: The software page identifies Matt Stohrer as the maker; his About page says he moved to North Carolina in 2010 and lives between Durham and Hillsborough.stohrermusic.com · 2 Oct 2026