HomeAudio ToolsAudio Speed Changer

Audio Speed Changer

Speed up or slow down audio from 0.25× to 3× with pitch preservation. Export as MP3 or WAV — all processing happens locally in your browser using ffmpeg.

Processed locally in your browser

Upload File

⏩

Upload Audio File

Drag & drop or click to browse

MP3, WAV, OGG, M4A, AAC, WebM, FLAC · Max 200 MB

How to Use

  1. 1

    Upload your audio file — MP3, WAV, OGG, M4A, AAC, WebM, or FLAC (up to 200 MB).

  2. 2

    Choose a speed preset (0.5×, 0.75×, 1×, 1.25×, 1.5×, 2×) or drag the custom slider for any speed from 0.25× to 3×.

  3. 3

    Preview the audio in your browser at the selected speed using the built-in player.

  4. 4

    Check the original duration and estimated new duration shown on screen.

  5. 5

    Select your output format — MP3 or WAV.

  6. 6

    Click "Apply Speed & Export" to process the file locally using ffmpeg with pitch preservation.

  7. 7

    Preview the result and click "Download" to save the speed-adjusted audio.

Frequently Asked Questions