Convert sfw to g3

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Sfw file(s) on your desktop and select Convert with Filestar.

  3. Type convert to g3 in the search box.

  4. Press Convert.

  5. Or let an AI agent do it: filestarcli -i photo.sfw -c "convert to g3" (how).

Let your AI agent convert SFW to G3

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Then ask your agent:

“Convert the SFW files in my Downloads folder to G3”

Or run it yourself:

filestarcli -i photo.sfw -c "convert to g3"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent convert SFW to G3?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.sfw -c "convert to g3" on your computer, so your files stay on it.

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .sfw and .g3?

Extension
.sfw
.g3
Format
Binary
Binary
Category
Raster Image
Fax
Developer
Seattle FilmWorks
CCITT
Description
The SFW file format is associated with Seattle FilmWorks, a photography and film processing company. It was primarily used for images that were developed and digitized by Seattle FilmWorks. The format was proprietary, meaning it required specific software provided by Seattle FilmWorks or compatible third-party applications to view or convert the images. SFW files were popular in the late 1990s and early 2000s, especially among consumers who used Seattle FilmWorks' mail-order film developing service.
Fax image created in the CCITT Group 3 compressed format, which is used for digital transmission of fax data and supports 1 bit per pixel; can be viewed by programs such as GIMP and IrfanView.
MIME Type
image/x-seattle-filmcamera
image/g3fax

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