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How to compress an image to under 100 KBShrink a JPG, PNG, or WebP below 100 KB for forms, portals, and email attachments — free, no signup, and no watermarks.How to merge PDF files into one documentCombine several PDFs into a single file in the right order — free, no signup, no watermarks, and your documents stay private.How to make a QR code for a linkTurn any URL into a QR code you can print or share — free, no signup, no expiring codes, and downloadable as an image.How to get the hex code of a color from an imagePick any pixel from a photo or screenshot and get its exact hex, RGB, and HSL values — free and instant, no signup.How to format and validate JSONPretty-print minified JSON and find syntax errors instantly — free, no signup, and your data is never uploaded.How to count words and characters in an essayCheck an essay, statement, or post against a word or character limit — free, instant, and nothing you write is uploaded.How to convert px to rem in CSSTurn pixel values into rem units for accessible, scalable CSS — free converter plus the simple math behind it.How to calculate the days between two datesCount the exact days, weeks, and months between any two dates — for deadlines, notice periods, trips, and countdowns. Free and instant.