AnyFormat

00 JPEG → JPG

JPEG to JPG

They are the same format. Here is what you actually need.

Drop files or a folder here

or choose from your device · paste with ⌘V / Ctrl+V

.jpeg .jpg .jfif

03Options 5

82 is the point where most people stop being able to tell. Above 90 the file grows fast for very little.

  • No upload The conversion runs in this tab. Your file never travels — not to us, and not to the advertising.
  • No sign-up, no email, no daily cap There is no account system to sign up to.
  • No size limit we invented Only your device's memory — about ~2 GB on a desktop browser, ~400 MB on a phone.
  • Turn your Wi-Fi off and convert anyway The conversion needs nothing but this page. Ads will not load without a connection; your file will still convert. That is the whole claim, and it takes five seconds to check.

JPEG and JPG are the same format. There is no conversion to do, and any site that charges for one is selling you a rename. What you probably need is one of the three things below.

Why there are two extensions

MS-DOS allowed only three characters after the dot. The format's proper name is JPEG — Joint Photographic Experts Group — and on DOS and early Windows it had to be shortened to .jpg. Unix and Mac systems kept .jpeg.

The bytes are identical. Both start with the same FF D8 FF marker, and every program that opens one opens the other. There is no quality difference, no size difference, and no compatibility difference.

What you should do instead

Just rename it. On Windows, F2 and change the extension (you may need to switch on file extensions in Explorer's View menu). On macOS, click the name in Finder and edit it. On Linux, mv photo.jpeg photo.jpg. That is the whole job, and it takes no time.

To rename a lot of them: Windows PowerShell — Get-ChildItem *.jpeg | Rename-Item -NewName { $_.Name -replace '\.jpeg$','.jpg' }. macOS or Linux — for f in *.jpeg; do mv "$f" "${f%.jpeg}.jpg"; done.

When re-encoding here is actually useful

Renaming is right in almost every case. Using this tool instead makes sense when:

A validator is rejecting the file for a different reason. Some upload forms reject progressive JPEGs, CMYK JPEGs, or files with unusual EXIF. Re-encoding produces a clean, baseline, sRGB file with no metadata, which usually gets through.

You want the EXIF gone. Renaming keeps the GPS coordinates; re-encoding removes them.

You need it smaller. Drop the quality and the file shrinks.

You have hundreds and no command line. Drop the folder here and download a ZIP.

Be aware that re-encoding does lose a little quality — it is a second lossy compression. Renaming loses nothing.

Other names for this

Also searched as “jpg to jpeg”, “change jpeg to jpg”, “jpeg vs jpg”.

Questions

Is there any difference between JPG and JPEG?
None whatsoever. Same format, same bytes, same compression. The three-letter version exists because MS-DOS allowed only three characters in an extension.
So can I just rename the file?
Yes, and you should — it is instant and loses nothing. Use this tool only if you also want the metadata stripped, the file made smaller, or a clean baseline re-encode for a fussy upload form.
Does re-encoding lose quality?
A little, yes — it is a second lossy compression. At quality 82 it is not visible, but renaming loses literally nothing.
My upload form rejects my .jpeg file.
If renaming does not fix it, the form is objecting to something else — often a progressive or CMYK JPEG. Re-encoding here produces a baseline sRGB file, which usually passes.
Can I convert a whole folder of images?
Yes. Drop as many files as you like, or a whole folder. Each keeps its original name with the new extension — IMG_4032.heic becomes IMG_4032.jpg, never converted_1.jpg — and you can download them individually or as a ZIP.
Are my photos uploaded?
No. The decoding and re-encoding happen in this tab using the browser’s own image support. Photos are personal in a way most files are not, and none of them is transmitted. Turn your Wi-Fi off and the converter keeps working.