Change Audio Speed Online — Free Tool
Change Audio Speed — Free Online Tool | f2file
Speed up a podcast to save time or slow down a music track for practice. Adjust the playback speed of any audio file from 0.5x to 4x while keeping the pitch natural. Upload, adjust, and download — all in your browser.
How it works
Upload the audio
Choose the recording or track you want to adjust.
Choose speed
Speed it up or slow it down based on your task.
Download and listen
Check clarity, pitch, and timing.
Frequently asked questions
About Change Speed
Change Speed makes audio play faster or slower. It is useful for reviewing lectures, speeding through meetings, slowing language practice, studying interviews, practicing music, or creating quick preview clips. Speed changes can affect pitch and clarity depending on the processing method. Speech usually tolerates moderate speed changes. Music can sound unnatural if pushed too far. Use small adjustments first, then listen to the output before relying on it for study, publishing, or transcription.
Updated June 2026: Added guidance for speeding up or slowing down audio for learning, transcription, review, music practice, and pitch expectations.