Download and install the latest version of Filestar.
Right click on one or more J2k file(s) on your desktop and select Convert with Filestar.
Type convert to tiff in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.j2k -c "convert to tiff" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
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.j2kContract.j2k
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert J2K to TIFF
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 J2K files in my Downloads folder to TIFF”
Or run it yourself:
filestarcli -i photo.j2k -c "convert to tiff"
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 J2K to TIFF?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.j2k -c "convert to tiff" on your computer, so your files stay on it.
Compressed bitmap image that uses wavelet compression instead of the DCT compression used by standard .JPEG images; supports 16-bit color, alpha transparency, and lossless compression.
A TIFF file is a graphics container that stores raster images. It may contain high-quality graphics that support color depths from 1 to 24-bit and supports both lossy and lossless compression. TIFF files also support multiple layers and pages.