Download and install the latest version of Filestar.
Right click on one or more Pjpeg file(s) on your desktop and select Convert with Filestar.
Type convert to fits in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.pjpeg -c "convert to fits" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.pjpegContract.pjpeg
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert PJPEG to FITS
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 PJPEG files in my Downloads folder to FITS”
Or run it yourself:
filestarcli -i photo.pjpeg -c "convert to fits"
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 PJPEG to FITS?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.pjpeg -c "convert to fits" on your computer, so your files stay on it.
A PJPEG file is a bitmap image created in the Progressive JPEG format (PJPEG). It contains encoded bitmap data so that the downloaded image appears progressively from a blurry picture to the final sharp image. PJPEG files may also fill alternating horizontal lines until the full picture is revealed.
The Flexible Image Transport System (FITS) file format is a digital file format used primarily in astronomy for storing, transmitting, and analyzing scientific images and data. Developed in the late 1970s, FITS was designed to provide a standard for the interchange of astronomical data, facilitating the sharing and analysis of data among astronomers and researchers worldwide.
