Audio

Convert between MP3, M4A, WAV, OGG, FLAC and AAC, trim and compress. Free to use, no sign-up needed.

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41 tools

Compress AudioMake a music or voice file smaller by re-encoding it at a lower bitrate. MP4 to MP3Pull the sound out of an MP4 and save it as an MP3, at the bitrate you pick. Video to MP3Any video in, one MP3 out. Works on MOV, MKV and WebM as well as MP4. MOV to MP3Take the audio track out of a QuickTime MOV and keep it as an MP3. WebM to MP3Turn the Opus or Vorbis sound inside a WebM into an ordinary MP3. WAV to MP3Convert a WAV recording to MP3, choose the quality and check the actual file size. M4A to MP3Convert the AAC audio Apple devices record into MP3 that plays anywhere. FLAC to MP3Trade a little quality for a lot of space, from lossless FLAC to MP3. OGG to MP3Convert an OGG Vorbis or Opus file into MP3 for players that want it. AAC to MP3Rewrite a bare AAC stream as an MP3 with proper tags and a real header. MP3 to WAVDecode an MP3 back to uncompressed 16-bit WAV for editing or mastering. M4A to WAVTurn an Apple M4A recording into a plain WAV that any editor will open. FLAC to WAVUnpack lossless FLAC into WAV without losing a single sample on the way. WAV to FLACPack a WAV into FLAC. Identical audio, roughly half the file size. MP3 to OGGConvert an MP3 into OGG with the Opus codec, which sounds better per kilobyte. MP3 to M4ARepackage an MP3 as AAC in an M4A container, the format Apple players prefer. WAV to M4ACompress a big WAV into a small M4A that still sounds close to the original. Extract Audio from VideoLift the soundtrack out of any video and keep it in whichever format you need. Audio ConverterOne page for every audio format here. Choose a file, choose a target, done. Trim AudioCut a clip out of a recording by typing the second it starts and ends. Audio File InfoRead the codec, sample rate, channels and true length of an audio file. MKV to MP3Take the soundtrack out of a Matroska file and keep it as an MP3. MOV to WAVPull uncompressed audio out of a QuickTime file for editing. MP4 to WAVGet the sound out of a video as raw WAV, with nothing thrown away. Video to WAVAny video in, uncompressed WAV out, ready for an audio editor. MP4 to M4AKeep the AAC audio from a video without re-encoding it at all. WebM to WAVTurn the Opus sound inside a WebM into a plain WAV file. MP3 to AACConvert an MP3 into a raw AAC stream, smaller at the same quality. WAV to AACCompress a WAV into AAC, which beats MP3 at every bitrate. M4A to AACUnwrap the AAC inside an M4A into a bare ADTS stream. AAC to M4AWrap a raw AAC stream in an M4A container so players accept it. AAC to WAVDecode AAC to uncompressed WAV for editing or mastering. FLAC to M4ATrade lossless for portable: FLAC in, a much smaller M4A out. M4A to FLACMove an M4A into FLAC, which stores audio without further loss. MP3 to FLACRewrap an MP3 as FLAC. Nothing more is lost, but nothing is regained. FLAC to OGGCompress lossless FLAC into OGG Opus at a fraction of the size. OGG to FLACMove an OGG file into FLAC for archiving or for an editor that needs it. WAV to OGGTurn a big WAV into OGG Opus, the best sound per kilobyte there is. OGG to WAVDecode OGG Vorbis or Opus back to uncompressed WAV. M4A to OGGConvert Apple M4A audio into an open OGG Opus file. AAC to FLACStore an AAC stream as FLAC so nothing further is lost when you edit.

Good to know

How do I start?

Choose an audio or video file. Review its preview and adjust the settings, then use the start button to process it. Changing a setting lets you run it again with the same file.

Can I choose a shorter section?

Where start and end controls are shown, enter the times in seconds or use the selection sliders after the preview loads. Leave the end at zero to use the end of the recording, unless the tool specifies a shorter excerpt.

Why might a format be unavailable?

Playback and conversion depend on the codecs supported by your browser and device. The page reports unsupported tracks or formats. Try another output format if one is unavailable.

How do I check the finished file?

Play the result where a preview is available, then download it. Keep the page open during processing; large recordings can take more time and memory.