Convert JPEG to JPG — Free Online Converter
Convert Joint Photographic Experts Group (.jpeg) to JPEG Image (.jpg) online for free. Fast, secure image conversion with no watermarks or registration.
About JPG files
JPEG and JPG are the same image format. The two spellings exist because older versions of Windows allowed only three letters in a file extension, so .jpeg was shortened to .jpg.
Some upload forms and apps check the extension and accept only .jpg. In that case renaming the file from .jpeg to .jpg is enough, because the data inside is identical.
How we convert JPG to JPG
- What we do
- The converter decodes the image and encodes a new JPG, so it is a re-encode, not only a rename.
- JPG output
- Quality 85, progressive, optimized JPEG encoder.
- Orientation and EXIF
- The stored rotation is applied and EXIF data stays unless you remove it.
Common problems and fixes
A website rejects your .jpeg file.
Rename the file to end in .jpg, or convert it here. Both give a file the site will accept.
You do not want any quality change.
Rename the extension instead of converting. A rename does not touch the image data.
The new file is a different size from the original.
The converter encodes again at quality 85, so the size can go up or down. Use a rename if you need the exact same bytes.
About JPG to JPG Conversion
JPEG and JPG are the exact same image format — the only difference is the file extension. The .jpeg extension is the original, full-length extension standardized by the Joint Photographic Experts Group. The .jpg extension was created because early DOS and Windows 3.1 systems limited file extensions to three characters. Both extensions use identical DCT-based compression, store the same data structure, and produce visually identical files.
You can change .jpeg to .jpg by renaming the file yourself, and nothing about the image changes. When you run it through our converter instead, the image is decoded and saved again as a JPG at quality 85, so the file is re-encoded.
Why Convert JPG to JPG?
Some applications, upload forms, and batch processing scripts specifically check for the .jpg extension and reject .jpeg. Web servers may have MIME type configurations that handle one extension differently from the other. Legacy software and outdated file validation rules sometimes require the three-character .jpg extension specifically.
Consistency is another reason for the conversion. If your image library contains a mix of .jpeg and .jpg files, standardizing on one extension simplifies file management, batch processing scripts, and web deployment configurations.
Common Use Cases
- Rename .jpeg files to .jpg for upload forms that specifically require the three-character extension