Free converter · Lossless transform

Convert JPG to JPEG

Runs in your browserNo upload

Short answer

Drop your JPG file into the converter below and download the JPEG file. It runs in your browser with the Canvas API; nothing is uploaded. The pixels are saved as A JPEG at 92% quality; transparent areas become white, without further loss. Detail the JPG compression already removed does not come back, and the file is usually larger.

The JPEG bytes stay unchanged; only the filename extension changes. Nothing is uploaded.

JPG vs JPEG

JPGJPEG
Full nameJPEG image (.jpg)JPEG image (.jpeg)
What is insideLossy compressed pixelsLossy compressed pixels
CompressionLossyLossy
TransparencyNo transparencyNo transparency
Best forPhotos; the image format every platform documentsPhotos; .jpeg and .jpg are the same format

What you get

A JPEG at 92% quality; transparent areas become white. Same format, different extension - no re-encode needed.

Questions people ask

Is this JPG to JPEG converter free and private?

Yes. It is free, needs no account and runs entirely in your browser, so the file never leaves your device.

Will converting JPG to JPEG reduce quality?

No further loss: JPEG stores the decoded pixels exactly.

What happens to transparent areas?

JPEG has no transparency, so transparent pixels are filled with white. Convert to PNG or WebP to keep them transparent.

More converters

Sources and how we checked

  1. MDN: Media container formats
  2. MDN: Web audio codec guide
  3. MDN: Image file type and format guide
  4. FFmpeg documentation: stream copy

Reviewed October 6, 2026. What the converter writes was measured with ffprobe on the same FFmpeg build your browser downloads; format descriptions follow MDN's media guides.