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Image Tools
Open tool Image Color Palette Extractor
Extract an approximate dominant colour palette.
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Calculators
Open tool Image Compression Ratio Calculator
Create a bounded, browser-local image compression ratio calculator with visible assumptions, review guidance, and downloadable output.
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Image Tools
Open tool Image Duplicate Finder
Compare 2 to 20 image files locally by SHA-256, identify exact copies and export a JSON report without deleting originals.
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Image Tools
Open tool Image Edge Density Report
Report visible Sobel-gradient coverage at a fixed documented threshold.
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Open tool Image Emboss Effect
Create a neutral-gray directional relief rendering with a fixed 3x3 convolution.
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Open tool Image Entropy Report
Calculate base-two Shannon entropy over the visible luminance histogram.
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Open tool Image Error Diffusion Dither
Create a one-bit image with bounded Floyd-Steinberg luminance error propagation.
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Open tool Image EXIF Viewer
Inspect embedded metadata and export it as JSON.
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Open tool Image Exposure Adjuster
Scale decoded RGB channels by a selected number of power-of-two exposure stops.
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Image Tools
Open tool Image Favicon Generator
Create a PNG-compressed 32-pixel ICO favicon.
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Calculators
Open tool Image File Size Calculator
Estimate uncompressed image memory from dimensions, colour depth, and image count.
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Image Tools
Open tool Image Film Grain Adder
Add bounded deterministic luminance variation without changing image dimensions.