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JPEG to JPG Converter
Rename a .jpeg file to .jpg in your browser — completely lossless, because they are the same format. No upload, no re-compression.
Short answer
JPEG and JPG are the same file format — “.jpg” is just the shorter extension that older Windows software required. To convert JPEG to JPG, drop your file below and download it as .jpg. This tool renames the extension without re-encoding, so the pixels are byte-for-byte identical and there is zero quality loss. It all runs in your browser.
JPEG and JPG are identical
There is no difference between a .jpeg and a .jpg file — both hold exactly the same JPEG data. The three-letter .jpg extension exists only because early versions of Windows limited extensions to three characters. So “converting” JPEG to JPG really just means renaming, which is why this tool never touches your image data.
Why this is lossless (and re-savers aren’t)
Many online “converters” decode and re-encode your photo, which throws away a little quality every time. Because the formats are the same, this tool re-wraps the exact original bytes under a .jpg name instead — so there is no generation loss at all. Upload the result anywhere that insists on .jpg.
Image formats compared
| Format | Compression | Transparency | Best for |
|---|---|---|---|
| JPG / JPEG | Lossy | No | Photographs |
| PNG | Lossless | Yes | Logos, screenshots, line art |
| WebP | Either | Yes | Web images — smallest at equal quality |
| GIF | Lossless | 1-bit only | Short animations |
| HEIC | Lossy | Yes | iPhone photos — small, poorly supported |
| SVG | Vector | Yes | Icons and logos at any size |
| TIFF | Either | Yes | Scans and print masters |
| ICO | Lossless | Yes | Website favicons |
The one rule that matters: converting a lossy image (JPG, HEIC) to a lossless one (PNG) cannot recover detail already thrown away — it just makes a bigger file. Going the other way, PNG → JPG, is where the real savings are, and photographs lose nothing you can see.
How we calculate this
This is a lossless rename, not a re-encode — here is what happens in your browser:
- Read. the exact bytes of your .jpeg file are read locally in the browser — nothing is uploaded.
- Re-wrap. those identical bytes are placed into a new blob typed image/jpeg, with the filename extension changed to .jpg.
- Download. you download the byte-for-byte identical file as .jpg — no canvas, no re-compression, no quality loss.
Assumptions
- JPEG and JPG are the same format; only the extension differs.
- No pixels are decoded or re-encoded, so EXIF and quality are preserved exactly.
- Everything runs client-side; the file never leaves your device.
Last reviewed: July 19, 2026
Frequently asked questions
Is there any difference between JPEG and JPG?+
No — they are the same format holding identical data. The .jpg extension is just a shortened form of .jpeg that dates back to old Windows systems that only allowed three-letter extensions. Either extension opens the same way.
Does this reduce my image quality?+
Not at all. This tool renames the extension without re-encoding, so the pixels are byte-for-byte identical to your original. Unlike converters that re-save the photo, there is zero generation loss.
Why would I need to convert JPEG to JPG?+
Some upload forms, older programs, or strict file-type checks only accept files ending in .jpg. Renaming a .jpeg to .jpg makes those systems happy without changing the image itself.
Are my images uploaded?+
No. The rename happens entirely in your browser — the file's bytes are re-wrapped locally and never sent to a server. It works offline once the page loads.
Can I rename JPG back to JPEG?+
The formats are interchangeable, so any tool that renames the extension works in either direction. This page outputs .jpg because that's the extension most upload forms expect.
Will metadata like EXIF survive?+
Yes. Because no re-encoding happens, all embedded data — EXIF, orientation, color profile — is preserved exactly, since the original bytes are kept untouched.
Related tools
- PNG to JPG — convert a PNG to JPG with adjustable quality.
- JFIF to JPG — rename an iPhone/web .jfif to .jpg the same way.
This renames the extension losslessly in your browser — your image data is never modified or uploaded.