Convert 3fr to psb

Download and install the latest version of Filestar.
Right click on one or more 3fr file(s) on your desktop and select Convert with Filestar.
Type convert to psb in the search box.
Press Convert.

Or let an AI agent do it: filestarcli -i file.3fr -c "convert to psb" (how).

Let your AI agent convert 3FR to PSB

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

Or add it in one click:

Claude Code:

claude mcp add filestar -- npx -y [email protected] mcp

Then ask your agent:

“Convert the 3FR files in my Downloads folder to PSB”

Or run it yourself:

filestarcli -i file.3fr -c "convert to psb"

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 3FR to PSB?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.3fr -c "convert to psb" on your computer, so your files stay on it.

Using Filestar With AI Agents · Download SKILL.md

What is the difference between .3fr and .psb?

Name: Hasselblad 3F RAW Image; Photoshop Large Document Format
Extension: .3fr; .psb
Format: Binary; Binary
Category: Camera; Raster Image
Developer: Hasselblad; Adobe Systems
Description: Digital photo captured by a Hasselblad digital camera; saves the photo in a RAW format as captured directly by the digital camera's CCD; used for saving photos natively before applying touch-ups, such as white balance or color corrections.; Format used for saving large Photoshop documents over 30,000 by 30,000 pixels in size; supports images up to 300,000 by 300,000 pixels; to enable .psb support, check the "Enable Large Document Format" within the File Handling pane of the Photoshop Preferences window
MIME Type: application/octet-stream; image/vnd.adobe.photoshop
Sample: sample.3fr; sample.psb
Wikipedia: .3fr on Wikipedia; .psb on Wikipedia

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