Audio Speed Changer
Adjust the tempo of any audio file. Perfect for language learning and practice tracks.
🔒 100% private — runs in your browser⚡ Free forever🎯 No watermark
About this tool
Change audio playback speed without changing pitch — 0.5× to 2×, in-browser.
Unlike most online tools, Audio Speed Changer never uploads your files. Everything is processed locally on your device using modern browser APIs — your videos, audio and images stay private, and there are no file-size limits or queues.
Frequently asked questions
Yes — the tempo changes without the 'chipmunk' effect.
0.5×, 0.8×, 1.25×, 1.5× and 2×.
Yes, fully free and private — no upload, no account.