Observed arrival · 2026-08-27
PrintDiff Checks What Changed Before the Next Print
A private browser tool compares G-code, 3MF, and STL files without uploading them.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
PrintDiff separates comparisons by file format rather than treating every print file as plain text. Its G-code view is intended for line-by-line instruction changes, while 3MF analysis covers slicer, printer, filament, and object data; STL analysis focuses on mesh measurements. The page lists a 50 MB preview-file limit and says exported results retain structured differences even when on-screen rows are capped.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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