Free MP4 Converter Online

Convert MP4 to other formats and vice versa.

Online UniConverter (originally Media.io) is a completely free online service that allows you to convert MP4 files to MP3, OGG, WAV, WMA, or convert MOV, AVI, WebM to MP4 etc. No registration or installing software program required.

Super All-in-One Video Converter

Unlimited Audio/Video Convert on Your Desktop

Free Download for Desktop

Switch to Mac

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0 second waiting for uploading and downloading.

1000+ video/audio formats supported for input/output.

Batch convert multiple files at one time.

30X faster than any converter.

Unlimited video downloading and converting to MP3.

What Else Can You Do With Online UniConverter?

Online UniConverter (originally Media.io) can not only convert MP4 files but also convert, compress media files, and edit videos free online.

Video Editor

Crop, rotate, flip, adjust, trim video online free.

Audio Converter

Convert MP3 and other audio files online free easily.

Video Compressor

Compress video online free with less quality loss.

Audio Compressor

Compress audio file size online free in seconds.

Popular Conversions:

Audio
Video

Windows Media Audio Format .wma
Convert WMA to MP3 · convert WMA to OGG · convert WMA to WAV

MPEG-1 Layer 3 Audio .mp3, .mpga, .rbs, .mpeg3
Convert MP3 to OGG · Convert MP3 to WAV · Convert MP3 to WMA

Waveform Audio Format .wav
Convert WAV to MP3 · Convert WAV to OGG · Convert WAV to WMA

Real Media/Real Audio .ra, .rm, .ram
Convert RM to MP3 · Convert RM to OGG · Convert RM to WAV · Convert RM to WMA

MPEG-4 Audio Format .m4a, .m4b, .mp4, .m4r, .mp4a
Convert MP4 to MP3 · Convert MP4 to OGG · Convert MP4 to WAV · Convert MP4 to WMA

Free Lossless Audio Codec .flac
Convert FLAC to MP3 · convert FLAC to OGG · Convert FLAC to WAV · Convert FLAC to WMA

Advanced Audio Coding .aac
Convert AAC to MP3 · Convert AAC to OGG · Convert AAC to WAV · Convert AAC to WMA

AU Audio File .au
Convert AU to MP3 · Convert AU to OGG · Convert AU to WAV · Convert AU to WMA

MPEG Layer II Audio .mp2
Convert MP2 to MP3 · Convert MP2 to OGG · Convert MP2 to WAV · Convert MP2 to WMA

Audio Interchange File Format .aif, .aiff, .aifc
convert AIFF to MP3 · convert AIFF to Ogg · convert AIFF to WAV · convert AIFF to WMA

Adaptive Multi-Rate .amr, .awb
Convert AMR to MP3 · Convert AMR to OGG · Convert AMR to WAV · Convert AMR to WMA

OGG Vorbis .ogg, .oga
Convert OGG to MP3 · Convert OGG to WAV · Convert OGG to WMA

Creative Labs Audio File .voc
Convert VOC to MP3 · Convert VOC to OGG · Convert VOC to WAV · Convert VOC to WMA

WavPack .wv
Convert WV to MP3 · Convert WV to OGG · Convert WV to WAV · Convert WV to WMA

Advanced Systems Format .asf
Convert ASF to MP3 · Convert ASF to OGG · Convert ASF to WAV · Convert ASF to WMA

Musepack .mpc
Convert MPC to MP3 · Convert MPC to OGG · Convert MPC to WAV · Convert MPC to WMA

Dolby Digital .ac3
Convert AC3 to MP3 · Convert AC3 to OGG · Convert AC3 to WAV · Convert AC3 to WMA

Tracker Formats .mod, .s3m, .xm, .it, .669, .amf, .ams, .dbm, .dmf, .dsm, .far, .mdl, .med, .mtm, .okt, .ptm, .stm, .ult, .umx, .mt2, .psm
Convert MOD to MP3 · Convert MOD to OGG · Convert MOD to WAV · Convert MOD to WMA

Speex .spx
Convert SPX to MP3 · Convert SPX to OGG · Convert SPX to WAV · Convert SPX to WMA

3GP .3gp, .3gpp, .3ga, .3g2
Convert 3GP to MP3 · Convert 3GP to OGG · Convert 3GP to WAV · Convert 3GP to WMA

Monkey’s Audio .ape
Convert APE to MP3 · Convert APE to OGG · Convert APE to WAV · Convert APE to WMA

Shorten .shn
Convert SHN to MP3 · Convert SHN to OGG · Convert SHN to WAV · Convert SHN to WMA

TwinVQ .vqf
Convert VQF to MP3 · Convert VQF to OGG · Convert VQF to WAV · Convert VQF to WMA

True Audio .tta
Convert TTA to MP3 · Convert TTA to OGG · Convert TTA to WAV · Convert TTA to WMA

Qualcomm PureVoice Audio File .qcp, .qcelp
Convert QCP to MP3 · Convert QCP to OGG · Convert QCP to WAV · Convert QCP to WMA

DTS .dts
Convert DTS to MP3 · Convert DTS to OGG · Convert DTS to WAV · Convert DTS to WMA

Apple’s Core Audio Format .caf
Convert CAF to MP3 · Convert CAF to OGG · Convert CAF to WAV · Convert CAF to WMA

GSM Voice Codec .gsm
Convert GSM to MP3 · Convert GSM to OGG · Convert GSM to WAV · Convert GSM to WMA

Minecraft Encrypted Music File .mus Convert MUS to MP3 · Convert MUS to OGG · Convert MUS to WAV · Convert MUS to WMA

Sony Wave64 .w64
Convert W64 to MP3 · Convert W64 to OGG · Convert W64 to WAV · Convert W64 to WMA

ACT Voice .act
Convert ACT to MP3 · Convert ACT to OGG · Convert ACT to WAV · Convert ACT to WMA

Opus .opus
Convert OPUS to MP3 · Convert OPUS to OGG · Convert OPUS to WAV · Convert OPUS to WMA

μ-Law/A-Law .ulaw, .alaw
Convert ULAW to MP3 · Convert ULAW to OGG · Convert ULAW to WAV · Convert ULAW to WMA

Sony OpenMG .oma
Convert OMA to MP3 · Convert OMA to OGG · Convert OMA to WAV · Convert OMA to WMA

CRI ADX .adx
Convert ADX to MP3 · Convert ADX to OGG · Convert ADX to WAV · Convert ADX to WMA

Third Generation Partnership Project .3g2,.agpp,.3gp
Convert 3G2 to MP4, Convert 3G2 to AVI, Convert MP4 to 3G2, Convert 3GP to 3G2, Convert MP4 to 3GP, Convert 3GP to MP3, Convert 3GP to MP4, Convert 3GP to AVI

Advanced Systems Format .asf
Convert ASF to MP4, Convert ASF to AVI, Convert ASF to MP3, Convert MP4 to ASF

Audio Video Interleave .avi
Convert MP4 to AVI, Convert AVI to MP4, Convert AVI to MP3, Convert MKV to AVI, Convert MOV to AVI, Convert WEBM to AVI, Convert SWF to AVI

DivX .divx
Convert DIVX to MP4, Convert DIVX to AVI, Convert MP4 to DIVX, Convert AVI to DIVX

Flash Video .f4v,.flv
Convert FLV to MP4, Convert F4V to MP4, Convert FLV to WAV, Convert MP4 to FLV

Use for Facebook Video .mp4
Convert Facebook Video to MP4, Convert Facebook Video to MP3, Convert Video to Facebook Format

High Efficiency Video Coding h.265
Convert H265 to H264, Convert H264 to H265

MPEG-4 Video File .m4v,.mp4
Convert MP4 to MP3, Convert MP3 to MP4, Convert AVI to MP4, Convert MP4 to MPEG4, Convert WMA to MP4, Convert MP4 to WMA

Matroska Multimedia Container .mkv
Convert MKV to MP4, Convert MKV to MP3, Convert MKV to AVI, Convert MKV to MOV, Convert MKV to MOV

QuickTime File Format .mov,.qtff
Convert MOV to MP4, Convert MOV to AVI, Convert MP4 to MOV, Convert MKV to MOV

MPEG-4 Part 14 .mp4
Convert MP4 to MP3, Convert MP3 to MP4, Convert AVI to MP4, Convert WMA to MP4, Convert DAT to MP4, Convert RMVB to MP4, Convert MP4 to MP4

Moving Picture Experts Group .mpeg,.mpeg-2,.mpeg-3,.mpeg4
Convert MPEG to MP3, Convert MPEG4 to MP3, Convert MP4 to MPEG, Convert MP4 to MPEG2, Convert AVI to MPEG

Material eXchange Format .mxf
Convert MXF to MP4, Convert MXF to MOV, Convert MXF to MP3, Convert MXF to AVI

Ogg Vorbis Video .ogv
Convert MP4 to OGV, Convert OGV to MP4, Convert OGV to AVI, Convert MOV to OGV

Shockwave Flash .swf
Convert SWF to MP4, Convert MP4 to SWF, Convert SWF to AVI, Convert SWF to MP3, Convert SWF to MOV, Convert SWF to FLA

Multiplexing Digital Video and Audio Streams .trp
Convert TRP to MP4, Convert MP4 to TRP

Transport Stream .ts,.mts
Convert MTS to MOV, Convert TS to MP4, Convert MTS to MP4, Convert TS to MP3, Convert MTS to MP3

Use for Vimeo Video .vimeo
Convert Vimeo to MP4, Convert Vimeo to MP3, Convert Vimeo to MOV, Convert Vimeo to AVI

Video Object .vob
Convert VOB to MP4, Convert VOB to MP3 , Convert MP4 to VOB, Convert VOB to WMV, Convert VOB to AVI

WEB Media .webm
Convert WEBM to MP4, Convert MP4 to WEBM, Convert WEBM to MP3, Convert WEBM to AVI, Convert AVI to WEBM, Convert WEBM to MOV, Convert MOV to WEBM, Convert WEBM to WMV

Windows Media Video .wmv
Convert WMV to MP4, Convert MP4 to WMV, Convert MP3 to WMV, Convert WLMP to WMV, Convert MOV to WMV, Convert MPG to WMV, Convert VOB to WMV

XviD .xvid
Convert XVID to MP4, Convert MP4 to XVID, Convert AVI to XVID, Convert XVID to AVI

Use for YouTube Video .mp4
Convert YouTube Video to MP3, Convert YouTube Songs to MP3