Pitch Tempo, a free web tool, estimates the key and BPM of a short audio file and exports a version at a different pitch or speed. The use its owner puts forward is preparing a rehearsal or demo file before opening a full production session: a singer trying their own instrumental a semitone lower, or a producer checking the key and tempo of a short reference.
Pitch moves from 12 semitones down to 12 semitones up, and tempo from 50 to 150 percent of the original, each independently of the other. Detection runs on the full track, and the result downloads in MP3, WAV, FLAC, M4A, AAC, OGG, Opus, AIFF or WMA. The service accepts files up to 100 MB and five minutes. Guest use needs no account, and the owner says guest uploads are capped at three per rolling 24 hours.
The limits matter as much as the features. The tool changes an uploaded recording: the owner states that it does not generate music, separate stems or pull audio from streaming-service links, and that detection results are estimates to check by ear. Processing happens on the company’s server rather than in the browser, and guest audio expires 24 hours after upload, so anything worth keeping has to be downloaded in that window.
Owner Andriy Dziuba submitted the launch to The InterSpace Daily through our news form as a disclosed announcement rather than an independent recommendation, stating that the company has no budget for a paid feature and requesting unpaid editorial consideration only. We have not independently tested the tool or verified its detection accuracy.
The tool is at pitch-tempo.online.
