Ensure
Audio

Audio Speed

Speed audio up or slow it down between a quarter speed and four times, keeping the pitch if you want.
Drop an audio file here
MP3, WAV, OGG, M4A, FLAC or Opus

Guides that cover this

Audio formats, bitrates and why one track is louderHow to choose between MP3, AAC, Opus, WAV and FLAC, what sample rate and bit depth really change, and why normalising to peak leaves a quiet track quiet.

Related tools

Audio Converter
Convert audio between MP3, WAV, OGG, AAC, FLAC and Opus with your own bitrate and sample rate.
Audio
Trim Audio
Cut a start and an end time out of an audio file and keep only the part in between.
Audio
Audio Volume
Raise or lower audio by a set number of decibels, or normalise it to a broadcast loudness.
Audio
Merge Audio
Join several audio files into a single track, in the order you choose.
Audio