Convert JPG to JPEG
JPG and JPEG are the same format. Your file is renamed, byte for byte, and comes back with the .jpeg extension.
- Free
- Runs on your device
- No account
- No limits
How to convert JPG to JPEG
- Drop your JPG files in the box above. Add as many as you like.
- The bytes are checked. A real JPEG is passed straight through, and anything that turns out to be a different format is converted properly instead.
- Download each file, or take them all in one zip. Every file keeps its name, with .jpeg on the end.
Why JPG and JPEG are the same thing
Some systems insist on the four letter spelling, usually because whoever wrote the upload check only listed one of the two. Your file is already correct, so all it needs is the other extension, and that's what you get here.
Nothing is decoded or saved again along the way. That matters because a JPEG loses a little detail every time it is re-encoded, and there's no reason to pay that for a change of spelling.
Files that only claim to be JPG are handled properly. If the bytes turn out to be a PNG or something else wearing the wrong extension, it's converted for real and the row tells you what it actually was.
Common questions
Is the JPG to JPEG converter free?
Yes, properly free. No paid tier, no trial, no watermark on the result and nothing to sign up for. Put as many files through it as you like, as often as you like.
Are my files uploaded to a server?
No. The JPG to JPEG converter runs inside your browser, on your own machine, so your files never go anywhere. Big ones are fine too, up to whatever your browser can hold.
Is JPG the same as JPEG?
Yes, exactly the same. JPEG is the name of the format, after the Joint Photographic Experts Group that designed it. JPG is the same word cut to three letters, because early versions of Windows and MS-DOS couldn't handle a longer extension. Any program that opens one opens the other, and the bytes inside the file are identical.
Which spelling should I use, .jpg or .jpeg?
Whichever the thing you're feeding it to asks for. Neither is more correct, and both have been understood everywhere for decades. If nobody has told you, .jpg is the more common of the two by a wide margin, which makes it the safer default for a file you're going to share.
Does renaming a file change what is inside it?
No. The extension is part of the name, not part of the contents, so the picture data is identical either way. It matters only because programs use the extension as a first guess at what a file is. That's also why renaming a PNG to .jpg doesn't make it a JPEG, and why the bytes are checked here rather than the name.
Conversions that really do convert
If the file itself is the problem
- Compress an image to a target size Hit an exact file size, like under 1 MB, at the best quality that fits.
- Resize an image Exact pixels or quick percentages, with the shape locked.
- Crop an image Drag a frame, pick a shape and download at full quality.