Song Slower

Song Slower is a free tool that runs in your web browser to change the speed of any audio file. It’s designed for musicians practicing a difficult part, creators making slowed edits, or anyone who needs to hear audio more clearly. Your files are never uploaded. All processing happens on your device.

The tool gives you direct control over the sound. You can adjust the speed, add reverb for space, and optionally lower the pitch for a darker tone. It's built for common tasks without needing a full audio editor.

Key features include:

• Speed control: Adjust the tempo anywhere from 50% to the original 100%.
• Pitch shifting: Lower the pitch by up to 12 semitones, independent of speed.
• Reverb: Add a sense of space with a simple mix slider.
• Section looping: Select and repeat a specific part of a song for focused practice.
• Presets: Use the one-click “Slowed + Reverb” setting or save your own combinations.

You can slow a track down without changing its key, which is useful for transcription or learning an instrument. Alternatively, you can enable pitch shifting to get the sound common in slowed edits. The controls are separate, so you can adjust one without affecting the other.

When you’re done, you can export the result as a high-quality 320 kbps MP3 or an uncompressed WAV file. There's no signup required and no watermarks on your audio.