Simple online media conversion

Convert your video.
Keep it simple.

Justvert is a clean online video converter for changing MP4, MOV, WebM, MKV and other common media files into the format you actually need.

Drop a video file here

or choose a file from your device

MP4 · MOV · WebM · MKV · AVI · M4V and more
Built for private file handling Fast conversion workflow No software to install

Popular video converters

Go straight to the conversion you need. Dedicated converter pages make common format changes faster and easier to understand.

MP4→MP3

MP4 to MP3 Converter

Extract audio from an MP4 video and save it as MP3.

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MOV→MP4

MOV to MP4 Converter

Convert MOV video into broadly compatible MP4.

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WEBM→MP4

WebM to MP4 Converter

Turn WebM files into MP4 for easier playback and sharing.

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MKV→MP4

MKV to MP4 Converter

Change MKV video into an MP4 file for wider compatibility.

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MP4→GIF

MP4 to GIF Converter

Create a shareable GIF from an MP4 video clip.

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VIDEO→MP3

Video to MP3 Converter

Convert common video formats into an audio-only MP3.

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Convert a video in three steps

No editing timeline, complicated settings or software installation. Just choose a file, select a format and convert.

01

Choose your file

Add a video from your device. Justvert can identify common video and audio formats automatically.

02

Pick an output format

Choose MP4 for compatibility, MP3 for audio, WebM for the web, or another format suited to your workflow.

03

Convert and save

Start the conversion, then save the finished file when it is ready.

Formats people actually use

Justvert focuses on practical video and audio formats instead of burying simple conversions under hundreds of obscure choices.

MP4 ConverterMOV ConverterWebM ConverterMKV ConverterAVI ConverterMP3 ConverterWAV ConverterGIF Converter

A video converter that stays out of your way

Online video conversion should be straightforward. Justvert is designed around the job users came to do: change a media file from one format to another without navigating a full video editor.

The homepage works as a broad online video converter, while dedicated pages cover specific searches such as MP4 to MP3, MOV to MP4 and WebM to MP4. That keeps each conversion page focused on one task and makes it easier to explain format compatibility, quality choices and use cases clearly.

Video converter FAQ

What video formats can I convert with Justvert?

Justvert is designed to support common formats such as MP4, MOV, WebM, MKV, AVI and M4V, along with popular audio outputs including MP3 and WAV. Each dedicated converter page should list its exact supported inputs and outputs.

Do I need to install software to convert a video?

No. Justvert is designed as an online video converter, so the conversion workflow can be started from a modern web browser without installing a desktop application.

What is the best format for a converted video?

For most users, MP4 is the safest general-purpose choice because it is widely supported. WebM can be useful for websites, while MP3 is appropriate when you only need the audio track.

Can I convert MP4 to MP3?

Yes. The dedicated MP4 to MP3 converter is intended for extracting the audio from an MP4 video and saving it as an MP3 file.

Will converting a video reduce its quality?

It can. Re-encoding video or audio may introduce some quality loss, depending on the source format, codec and output settings. A useful converter should make quality choices clear rather than hiding them.