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JPEG to JPG converter: same format, no quality loss
JPEG and JPG are the same image format; only the spelling of the extension differs. If a form only takes .jpg, LensUp gives you the same photo with a .jpg name, with original quality kept by default, right in your browser.
.jpeg = .jpgBoth names mean the same JPEG image (image/jpeg). Only the label differs.
By default your photo is passed through unchanged and saved as .jpg.
Choose Re-save as new JPG below to set a KB limit.
JPEG → JPG
Get your .jpg files
One image at a time, up to 50 MB. With Pro, up to 50 at once, 80 MB each.
Your JPG files
Sizes and limits
By default each JPEG is renamed to .jpg with its bytes unchanged. Re-save as new JPG re-encodes the image (lossy); photo details (EXIF) are then removed unless you keep them, and kept details are written upright, without the embedded thumbnail.
Up to 50 MB per photo free (80 MB with LensUp Pro), 40 megapixels and 10,000 pixels per side. One photo at a time free; with Pro, up to 50 photos at once and up to 256 MB of JPGs per batch. Files beyond these limits are rejected, not resized.
If a size limit cannot be met, the actual file size is shown and original dimensions are preserved.
Need another format? Use the Image to JPG converter.
How do I convert a JPEG photo to JPG?
Choose your JPEG and, by default, LensUp saves the same file with a .jpg name: no re-encoding, so the image data is untouched. Choose Re-save as new JPG only if a form needs a size limit or you want photo details removed; that re-encodes the image (lossy). If a photo is not a real JPEG inside, it is re-saved as a real JPG instead of being renamed.
JPEG and JPG name the same image format. Some upload forms require the .jpg filename extension, while others also check file contents, dimensions or size. This converter creates a real JPEG file with a .jpg name.
With LensUp Pro you can choose up to 50 photos at once and download each .jpg or all of them as one ZIP. Original pixel dimensions are always kept.
How it works
- Add your JPEG photosPick one photo from your device, or several at once with LensUp Pro.
- Keep dimensions or set an optional size limitThe default has no KB ceiling and preserves original dimensions. Set an optional per-image limit when a form requires it. Compression adjusts quality only; an impossible limit is reported rather than silently reducing pixels.
- Download your .jpg filesSave each file, or all of them as one ZIP — standard .jpg files that upload forms accept.
JPEG vs JPG: what actually differs
Nothing in the image itself. Both extensions name the same JPEG standard; .jpg survives from systems that allowed only three-letter extensions. That is why a jpeg to jpg converter does not change what the picture is — by default it saves the same image data under the accepted extension.
The conversion keeps the full image and its orientation without scan filters, automatic crops or perspective changes. Use the separate scanner tool if you need to straighten or clean a document.
When you need convert jpg to jpeg instead
Some systems ask for the .jpeg spelling instead — the reverse of the usual request. LensUp always saves the file as .jpg; because the data is already standard JPEG, renaming the saved file from .jpg to .jpeg is lossless and is all a .jpeg-only portal needs. The converter itself does not output a .jpeg filename.
For pickier portals that also enforce a size range — “JPG between 20 KB and 50 KB” is common on Indian government forms — use the built-in compression target so the extension and the size are handled together.
Frequently asked questions
Is JPEG the same as JPG?
Yes. JPEG and JPG are the same image format (image/jpeg); the three-letter .jpg spelling comes from old Windows versions that allowed only three-character file extensions, and renaming .jpeg to .jpg changes nothing inside the file.
Will converting JPEG to JPG reduce quality?
Not by default. Keep original quality only renames the file, so the image data is untouched. Re-save as new JPG re-encodes the image (lossy) and is only needed for a size limit or to remove photo details.
How do I change a photo's extension from .jpeg to .jpg?
On Windows, turn on File name extensions in File Explorer's View menu, then rename the file. On a Mac, select the file in Finder, choose Rename and change .jpeg to .jpg. On a phone, the Files app usually hides extensions, so use this page: it saves the same photo with a .jpg name.
Why does my upload form still reject my JPG?
The form may also check file size or pixel dimensions. Set a KB limit or use Compress image to 50 KB if the file is too large, Increase size in KB if it is too small, and Resize in cm for dimensions.
Does it work on iPhone and Android?
Yes. It runs in your phone's browser with no app to install, and every photo is checked so you always get a real .jpg file.
Is the converter free and private?
Yes. It is free, with no watermark or sign-up, and the image is processed in your browser — nothing is uploaded.
Is JPG better quality than JPEG?
No. They are the same format, so the extension says nothing about quality; quality depends on how the photo was compressed when it was saved.
Is there a file size limit?
Each image can be up to 50 MB, or 80 MB with LensUp Pro, and up to 40 megapixels and 10,000 pixels per side. Files beyond these limits are rejected rather than resized.
Does renaming keep my photo's location and camera details?
Yes. Keep original quality saves the file exactly as it is, so photo details (EXIF) such as location stay in it. To remove them, choose Re-save as new JPG and leave Keep photo details off.
What if my .jpeg file isn't really a JPEG inside?
LensUp checks what is inside each file, not just its name, so a mislabelled photo is never simply renamed. It is re-saved as a real JPG instead, and the results list shows which files were renamed and which were re-saved.
How do I change JPG back to JPEG?
Rename the file so photo.jpg becomes photo.jpeg; nothing inside the file changes. This page always saves .jpg, so rename the download if a site asks for .jpeg.
Can I convert several JPEG photos at once?
Yes, with LensUp Pro: choose up to 50 photos at once, then download each .jpg or all of them as one ZIP. The free version converts one photo at a time.