JPEG (Joint Photographic Experts Group)

.jpg .jpeg .jfif · image/jpeg · 1992 · Joint Photographic Experts Group

The universal photo format. Small files, opens everywhere, no transparency. Below is what JPEG is best at, where it falls short, and how it compares — plus free, in-browser tools to convert JPEG to and from other formats, with nothing uploaded.

JPEG has been the default format for photographs since 1992. It uses lossy DCT compression tuned for natural images, which keeps photo files small at the cost of some fine detail. Every browser, OS, camera, and app on earth can open a JPEG, which is why it remains the safest choice for sharing and uploading photos. EditItAll re-encodes JPEGs with a trellis-optimized professional encoder, which typically shaves 20–60% off camera or phone originals with no visible quality loss.

Compression

Lossy

Transparency

No

Animation

No

Browser display

All browsers

Strengths & limitations

Strengths

  • Opens literally everywhere — 30+ years of universal support
  • Small files for photographs at quality 75–85
  • Progressive mode loads gracefully on slow connections

Limitations

  • No transparency (alpha channel) support
  • Lossy only — repeated edits and re-saves degrade quality
  • Visible artifacts on sharp edges, text and flat-color graphics

Best used for

Tools for JPEG

Compress JPEGJPEG → WebPJPEG → AVIFJPEG → JPEG XLJPEG → PNGJPEG → ICOJPEG → TIFFJPEG → BMPHEIC → JPEGWebP → JPEGAVIF → JPEGJPEG XL → JPEGPNG → JPEGGIF → JPEGSVG → JPEGTIFF → JPEGBMP → JPEGPSD → JPEGEXR → JPEGCR2 → JPEGNEF → JPEGARW → JPEGDNG → JPEG

Frequently asked questions

Is JPEG lossy or lossless?+

JPEG is a lossy format — it discards some detail to shrink the file. At high quality the loss is invisible for photos.

Does JPEG support transparency?+

No — JPEG has no alpha channel, so transparent areas are flattened onto a solid background. It is a still-image format (no animation).

Can browsers open JPEG files directly?+

Yes — every mainstream browser displays JPEG natively.

How do I open or convert a JPEG file for free?+

Drop your JPEG file into the EditItAll converter and choose an output format — it decodes and re-encodes entirely in your browser, with nothing uploaded, no account and no watermark.