Convertly
Change the speed

Speed up or slow down your audio.

Listen to a podcast faster or slow a track down to learn it: keep the voice's natural pitch, or let it shift like an old record.

Album cover art
podcast-episode.mp3
Normal speed · 24:00
Album cover art
podcast-episode-x1.5.mp3
Speed ×1.5 · 16:00
×1.5
0,75×1,25×1,5×2×
Fast and simpleResults in just a few clicks.
From 0.5× to 3×Six speeds to choose from.
Natural voicePitch preserved if you want it.
Local processingYour sound stays on your device.

Change the speed in seconds

Three simple steps, no installation required.
1ImportAdd your audio file from your device.
2Choose the speedSpeed, pitch, and output format.
3DownloadGet your result in one click.

Everything you need with "Change the speed"

1.5×
Six speeds
From 0.5× to 3×.
🎙
Pitch preserved
No chipmunk voice.
33 rpm
Record effect
Pitch follows the speed.
MP3
4 formats
MP3, WAV, M4A, or WebM Opus.
-33%
Duration recalculated
The file's length changes.
.zip
ZIP download
One archive when you process several files.

Designed for your audio files

See all tools
podcast-x1.5.mp3
Podcast
Listen at 1.5×
solo-x0.75.mp3
Music
Learn a track slowly
course-x2.mp3
Course
Save time
dialogue-x0.75.mp3
Language
Hear a phrase more clearly
Your audio files belong to youYour audio files stay on your device: nothing is uploaded, everything stays private. For M4A and WebM, processing takes about as long as the audio's own length: keep the tab open.
Simple. Private. Reliable.Use "Change the speed" with complete peace of mind.
Apply