Audio tools

• Convert audio

  Convert audio to MP3, M4A (AAC), WAV, FLAC, AIFF or OGG (Opus). Also opens AIFF, Dolby Digital (AC-3) and DTS sound. AudioOpen

• Trim audio

  Cut the start and end off an audio file, for example to make a ringtone. AudioOpen

• Cut several parts of audio

  Mark several parts of an MP3 or other audio file, then keep them joined, cut them out, or save each one. AudioOpen

• Split audio into parts

  Split a long recording, podcast or MP3 into parts of a length, equal parts, or at chosen times. AudioOpen

• Remove pauses from audio or video

  Find the pauses in a recording or video and cut them out or shorten them, for tighter jump cuts. AudioOpen

• Record your voice

  Record your voice with your microphone and save it as MP3, WAV or the original format. AudioOpen

• Test your microphone

  Check that your microphone works and how loud you are, then hear a 5-second recording of yourself. AudioOpen

• Remove background noise

  Clean up voice recordings and videos: removes fans, hum, hiss and traffic noise, and keeps the voice. AudioOpen

• Speed up or slow down audio

  Make an MP3, voice note or podcast faster or slower, keeping the voice at its normal pitch. AudioOpen

• Change the pitch of audio

  Make a song or voice higher or lower by semitones without changing its speed, for example to change a song's key. AudioOpen

• Play audio backwards

  Play a song, voice or sound effect backwards. AudioOpen

• Repeat audio

  Repeat a sound, beat or song several times, or until it is long enough, without re-encoding. AudioOpen

• Fade audio in and out

  Fade the start of a song or recording in from silence, and the end out to silence. AudioOpen

• Make a ringtone

  Turn the best part of a song into an iPhone (.m4r) or Android (.mp3) ringtone, with a soft fade. AudioOpen

• Join audio files

  Join MP3, M4A, WAV and other audio files into one, with an optional pause between them. AudioOpen

• Make audio louder or quieter

  Make an MP3 or other audio file louder or quieter, or normalize it. AudioOpen

• Fix sound in one ear only

  Mix stereo to mono, put sound that is only on one side in both ears, or swap left and right, in audio and video files. AudioOpen

• Adjust bass and treble

  Boost or cut bass, mids and treble, make voices clearer or remove rumble, in audio and video files. AudioOpen

• Make a waveform image

  Turn a song, podcast or voice recording into a waveform picture (PNG or SVG) in your colors and size. AudioOpen

• Remove audio tags

  Remove ID3 tags, cover art and other metadata from MP3, M4A, OGG and WAV files, without re-encoding. AudioOpen

• Keep time with a metronome

  A metronome with tap tempo, an accented first beat, 1 to 12 beats in a bar, subdivisions and a speed trainer. AudioOpen

• Play a tone at any frequency

  A sine, square, sawtooth or triangle tone from 1 Hz to 22,000 Hz: sweep a range, test left and right speakers, tune to a note, save it as WAV. AudioOpen

Quick conversions

One-click versions of the converters with the format already chosen.

• Make quiet audio louder
• Normalize audio loudness
• M4A to MP3
• WAV to MP3
• FLAC to MP3
• OGG to MP3
• AIFF to MP3
• WAV to FLAC
• FLAC to WAV
• MP3 to WAV

About these tools

Audio is decoded and encoded by your browser. MP3 files are made with the LAME encoder, compiled to run inside the page.

To pull the sound out of a video, use Video to MP3.

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