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Play a K3G video online, free

Play and convert .K3G files online. Watch video, inspect tracks and convert to MP4, WEBM or MP3, free.

Drop your .K3G file here

Opens your .K3G 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 .K3G file online

Three steps, all tab.

01

Open your file

Drop your .K3G 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 .K3G 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 .K3G file?

Everything worth knowing about GOM Player file.

A .K3G file is a 3GP Mobile Phone Video File developed by the Third Generation Partnership Project. It contains video data formatted for mobile devices and can be opened using media software such as Windows Media Player and GOM Player.

Programs that open .K3G files

Windows
Windows Media Player, GOM Player
.K3G format details
DeveloperThird Generation Partnership Project
CategoryAudio & Video

Related viewers

Other free tools to open and preview your files.

Is my .K3G file uploaded to a server?

No. Your .K3G 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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