Pitch Tempo helps you prepare a backing track or sample without opening a DAW. Estimate musical key and BPM, change pitch (-12 to +12 semitones) and tempo (75-125%) independently, preview, then export the full file. Free, with no account needed to start. Uploads: up to 5 minutes and 100 MB. Guests get 3 per 24 hours. Audio is processed on a server; key and BPM results are estimates.
