Free Image Tools That Run Entirely in Your Browser (No Server Upload)

I have a thing about uploading files to random websites. Call it paranoia, call it good practice — either way, I built a bunch of image tools that work 100% in your browser. No server. No account. No "processing on our end." Here's what's available and how they work under the hood. Image Compressor devtools-site-delta.vercel.app/image-compress This one gets the most use from me personally. I compress screenshots and blog images before uploading them anywhere. The tool uses the Canvas API to re-encode images at a lower quality setting: function compressImage(file, quality = 0.7) { return new Promise((resolve) => { const img = new Image(); img.onload = () => { const canvas = document.createElement('canvas'); canvas.width = img.width; canvas.height = img.height; const ctx = canvas.getContext('2d'); ctx.drawImage(img, 0, 0); canvas.toBlob(resolve, 'image/jpeg', quality); }; img.src = URL.createObjectURL(file); }); } The quality parameter (0 to 1) controls the compression level. At 0.