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268+ free online tools for PDF, images, SEO, developers, color, and productivity. Fast, browser-based, and private — no signup, no installs, no limits. Search above or browse by category below.
Total tools26810.8K total uses
Categories13Active categories
Most usedJSON Formatter4.1K uses
Recently addedExperiment RandomizerNewest tool
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Color Contrast Checker
Check WCAG contrast ratios between text and background colors for accessibility compliance.
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CSS Gradient Generator
Generate linear, radial, and conic CSS gradients with repeating options and copy-ready background, Tailwind, and inline styles.
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Color Blindness Simulator
Preview how colors and images appear under protanopia, deuteranopia, tritanopia, and other color vision deficiencies.
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Brand Color Extractor
Upload a logo or brand image to extract dominant colors with HEX, RGB, and CSS variable exports.
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Color Palette Extractor
Extract a color palette from any image with sortable swatches and copy-ready HEX, JSON, CSS gradient, and SVG exports.
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Random Color Generator
Generate random HEX colors and palettes in random, pastel, vibrant, dark, light, or muted styles.
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Color Mixer
Blend two or more HEX colors with adjustable weights using RGB or HSL mixing and copy the mixed result.
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Box Shadow Generator
Design layered CSS box shadows with live preview and copy-ready CSS, inline styles, and Tailwind classes.
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