Overview
What is oTuner?
oTuner - Simple and portable musical tuner for guitar, bass, piano, violin and other instruments, which tells you if a note is flat, sharp or exact, and shows the pitch for reference
In depth
A closer look at oTuner
oTuner is a free and open-source musical tuner for Windows, Windows Mobile and Pocket PC users. It lets you adjust any instrument, including guitar, bass, piano and violin. The interface is based on a small window that automatically identifies the instrument plugged into the computer. Before attempting to fine-tune the musical device, you have to make sure that the volume bar (in the far right-side of the frame) is set to a green level, in order to avoid arrow flickering. The program indicates flat notes to let guitarist know they have to tighten their strings until the arrows reach the central triangle. During this time, you can keep an eye on the sample frequency for reference (between 430Hz A and 450Hz A). The title bar names the note played and tells you whether the pitch is flat, sharp or exact.
Verdict
Should you download oTuner?
oTuner runs on
Windows 10/11
and is available under the
GPLv3
license
— the installer is 228 KB.
We’ve catalogued it under
Audio Video.
✓
Verified clean. Every oTuner build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
Sponsored
At a glance
oTuner specifications
- Publisher
-
code::Biscuit
- Last updated
- May 1, 2026
- License
- GPLv3
- Operating system
- Windows 10/11
- File size
- 228 KB
- Price
- Free
- Page views
- 793
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