Observed arrival · 2026-09-08
Stamp Extractor
A browser tool that removes paper backgrounds from red, blue, or custom-colored stamps and exports them as transparent PNGs.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The workflow accepts JPG, JPEG, or PNG files up to 10 MB, with optional cropping before color selection. Users can choose red or blue presets or sample a custom ink color directly from the image. According to the page, extraction compares pixels in HSV and LAB color spaces, assigns a soft confidence value, and preserves the result in a transparent PNG rather than applying a simple binary threshold.
Observed signals
Read the marks
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
One card from the complete issue