Image Converter

Convert JPG to SFW

Looking for JPG to SFW? Here's why SFW isn't an output option — and the modern formats to use.

We don't create SFW files — it's a legacy format that's effectively read-only. Here's what to convert to instead.

Why JPG to SFW isn't offered

1

SFW is legacy and read-only here

SFW (Seattle FilmWorks) is a proprietary 1990s photo-lab format. It can usually be opened and converted from, but it's long obsolete, so there's no modern encoder to create new SFW files.

2

Convert to a current format

For a file that opens everywhere, convert your JPG to PNG, TIFF or WEBP instead.

Format details

What is a JPG file?

JPG (JPEG) is a lossy raster format that compresses photographs into small files by discarding detail the eye barely notices — the most widely used photo format on the web and in cameras.

Full name
Joint Photographic Experts Group
Developed by
JPEG Group
Released
1992
Extension
.jpg
MIME type
image/jpeg
Transparency
No

How to open JPG opens in every browser, image viewer and editor with no special software.

Full JPG format guide

What is a SFW file?

SFW is Seattle FilmWorks' proprietary format from its mail-order film-developing service, which delivered scans in this locked format.

Full name
Seattle FilmWorks Image
Developed by
Seattle FilmWorks
Released
1994
Extension
.sfw
MIME type
image/sfw
Transparency
Varies

How to open SFW opens with SFW converters and IrfanView; convert to JPG to free the images for normal use.

Full SFW format guide

What you can do instead

Frequently asked questions

Can I convert JPG to SFW?
Not here — SFW is a legacy format with no modern encoder. We can often read SFW as a source, but for output use a current format like PNG, TIFF or WEBP.
What can I convert my JPG to instead?
JPG converts to PNG, TIFF or WEBP — free, no sign-up, no watermark.