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Play a MJPG video online, free

Play and convert .MJPG files online. Watch video, inspect tracks and convert to MP4, WEBM or MP3, free.

Drop your .MJPG file here

Opens your .MJPG file right here.

Choose file
Inspect up to 4 GB · convert up to ~500 MB
Instant. Opens in seconds
Real FFmpeg compiled to WebAssembly
100% free. No watermarks
Engines load only when needed: MediaInfo (2.4 MB) to inspect, FFmpeg (32 MB, cached after first use) to convert.

How to convert a .MJPG file online

Three steps, all tab.

01

Open your file

Drop your .MJPG file and every video, audio and subtitle track inside is listed with its codec, resolution, frame rate and language.

02

Preview

See frames from across your .MJPG file before you convert, even when your browser can't play the codec inside.

03

Convert

Pick MP4, WEBM or MP3, or repack to MKV without re-encoding. Play the result right here, then download it.

What is a .MJPG file?

Everything worth knowing about Motion JPEG Video File.

An MJPG file is a Motion JPEG video where every frame is stored as a separate JPEG image. It comes most often from IP cameras, dashcams, and USB webcams. VLC media player (free, Windows/Mac/Linux) opens MJPG files directly. To reduce file size, convert to MP4 with HandBrake or FFmpeg.

Programs that open .MJPG files

Windows
VLC media player, Windows Media Player, Freemake Video Converter, MediaCoder, HandBrake
macOS
VLC media player, HandBrake
Linux
VLC media player, FFmpeg, MJPEG Tools
Web
Mozilla Firefox
.MJPG format details
Full nameMotion JPEG Video File
DeveloperN/A (no single owner; independently implemented by many vendors)
First releasedEarly 1990s (first used in digital video cameras and capture cards)
CategoryAudio & Video
MIME typevideo/x-motion-jpeg

Related viewers

Other free tools to open and preview your files.

Is my .MJPG file uploaded to a server?

No. Your .MJPG file is converted for you. The converted file is created in memory,.

Why is conversion slower than desktop software?

Browsers give web pages a single CPU core for this kind of work and no hardware video encoder. Short clips convert in seconds; for long 4K films a desktop app like HandBrake is faster. Use Start and Length to convert just the part you need.

Which output format should I pick?

MP4 plays on every phone, TV and browser. WEBM is an open format that's great for the web. MP3 keeps only the sound. MKV (no re-encode) is instant and lossless, but only changes the container.

Can I keep all audio tracks and subtitles?

The MKV (no re-encode) option copies every track as-is. MP4 and WEBM keep the first video and audio track, which is what most players use.

Why can't some files be converted?

Files protected with DRM (for example purchased iTunes .m4p songs or some .wmv rentals) are encrypted. We can show what's inside, but nobody can convert them without the key.

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