MPEG Converter
FileFlip converts MPEG files into 29 other formats entirely inside your browser, using FFmpeg and WebCodecs compiled to WebAssembly. The MPEG file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert an MPEG file?#
- Drop your MPEG file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert MPEG files online?#
Yes, because nothing is uploaded. FileFlip converts MPEG files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What happens to a MPEG file#
FileFlip converts MPEG into 29 formats with FFmpeg and WebCodecs, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | Video Files |
|---|---|
| File extension | .mpeg |
| FileFlip support | Read and written |
| Conversions available | 29 |
| Engines | FFmpeg and WebCodecs |
| Downloaded to your browser | 30.8 MB on the first conversion, then cached |
What is an MPEG file?#
.mpeg and .mpg name the same MPEG program stream under two spellings, a split that goes back to the three-character extension limit MS-DOS and early Windows imposed on file names.
Keep the .mpeg spelling when a workflow, script, or archive convention specifically expects the full four-letter extension; the video data behaves identically either way.
Convert MPEG to MP4 for the same reason an MPG needs converting: MPEG-2 is bulky, poorly supported by browsers, and increasingly undecodable on Windows without an extra codec.
The MPEG file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
MPEG questions people ask#
What's the difference between .mpeg and .mpg?
None in the video data. Both extensions point to the same MPEG-1 or MPEG-2 program stream, so a .mpeg file and a .mpg file of the same source contain identical frames and audio, only the extension text differs.
Why does MPEG have two spellings of its extension?
MS-DOS and early Windows used the FAT filesystem's 8.3 naming rule, which capped every extension at three characters, so the four-letter '.mpeg' the standards committee used didn't fit. Software on those systems wrote '.mpg' instead, while Unix and early Macintosh systems, with no such limit, kept the full '.mpeg' spelling.
Why won't my MPEG file play?
The most common cause is Windows 10 or 11 missing the MPEG-2 decoder, which Microsoft stopped bundling and now sells separately as the MPEG-2 Video Extension. Installing it, or opening the file in VLC instead, fixes playback without touching the file itself.
Should I rename .mpeg to .mpg?
Renaming only changes the filename, not the bytes inside, so a renamed file opens exactly the same. .mpg is worth using where an older tool or upload form insists on three-letter extensions; otherwise either spelling works everywhere modern.