Online MP4 Converter

Convert any audio and video to MP4 in seconds straight from your browser. No installs. No watermarks. 100 % free.

Drop your file here to upload

Click or drag & drop to upload your file

Select a file

Select format to convert to

MP4 (.mp4)

Video Formats

3GP (.3gp)

AVI (.avi)

FLV (.flv)

M4V (.m4v)

MK3D (.mk3d)

MOOV (.moov)

MOV (.mov)

MP4 (.mp4)

MPA (.mpa)

MPE (.mpe)

MPEG (.mpeg)

MPG (.mpg)

MXF (.mxf)

QT (.qt)

VOB (.vob)

WEBA (.weba)

Audio Formats

AAC (.aac)

AIF (.aif)

AIFC (.aifc)

AIFF (.aiff)

AMR (.amr)

AU (.au)

CAF (.caf)

DSS (.dss)

FLAC (.flac)

GSD (.gsd)

GSM (.gsm)

M2V (.m2v)

M4A (.m4a)

MP2 (.mp2)

MP3 (.mp3)

MPGA (.mpga)

MTS (.mts)

MUS (.mus)

OGA (.oga)

OGG (.ogg)

OGV (.ogv)

OGX (.ogx)

RM (.rm)

SWF (.swf)

TS (.ts)

WAV (.wav)

WEBM (.webm)

WMA (.wma)

WMV (.wmv)

XSPF (.xspf)

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Why choose HappyScribe?

47+ Formats

Convert over 47 formats into popular outputs like MP4, MKV, WebM, AVI, and more.

100% Free

No signups, no fees, no hidden restrictions. Convert to MP4 directly in your browser for free.

Secure

We take your security seriously. All file transfers use 256-bit SSL encryption.

Online

No installs needed; convert to MP4 right from your browser, on any device, anytime.

How to convert to MP4?

1. Upload media file

Start by dragging and dropping your file into the upload area, or click to browse your device and select your file in the list.

2. Choose your target format

Next, pick MP4 as the format you’d like to convert your video into. Alternatively, we support +47 formats that you can choose from. When you’re ready, hit the Convert button.

3. Download your converted MP4

Once the conversion is complete, you’ll get a download link right away. Just click to save the file to your device. It’s fast, easy, and doesn’t require any software installation.

Frequently Asked Questions

How to open a MP4 file?

Virtually every player from Safari and Chrome to Xbox and Roku handles MP4. When editing, DaVinci Resolve and Final Cut Pro will optimise H.264 to intraframe proxies for smoother scrubbing. HandBrake transcodes old codecs like DivX to modern H.264+AAC MP4 profiles.

What is a MP4 file?

MP4 (MPEG‑4 Part 14) is the dominant container for online video. Based on QuickTime atoms, it can hold H.264/AVC, HEVC, AV1, AAC, AC‑3, timed text, and fragmented segments for adaptive streaming. Finalised in 2001 and revised in 2003 (ISO/IEC 14496‑14), MP4 became the hand‑off format of choice thanks to the iPod Video and PlayStation Portable. The arrival of HLS and DASH further entrenched MP4, which supports ‘moov’ boxes at either head or tail for progressive download or live streams.

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