Resize, convert, and compress images in your browser. Nothing uploaded — 100% private and instant.
Your image never leaves your browser. All processing happens locally on your device.
Maintain proportions automatically. Resize by width or height — the other dimension scales perfectly.
Export to any format. WebP saves 30-50% file size over PNG with the same visual quality.
Fine-tune compression for JPEG and WebP from 10% to 100%. Find the sweet spot for your use case.
One-click sizing for Twitter post, Instagram square, OG image, favicon, and more.
Resized image downloads directly. No watermarks, no signup, no email required.
Images are the single biggest contributor to page weight on most websites. Google's Core Web Vitals — specifically Largest Contentful Paint (LCP) — directly penalize sites where the hero image takes more than 2.5 seconds to render. Oversized images are the #1 cause of poor LCP scores.
Switching from PNG/JPEG to WebP at the right dimensions typically cuts image weight by 50-70%, which often moves a page from a failing LCP to passing. That improvement compounds across every image on your site and directly affects mobile rankings, where bandwidth matters most.
And serving the right Open Graph image (1200×630 WebP under 200KB) means your page actually previews properly when shared on Twitter, LinkedIn, or Facebook — boosting social CTR. But none of this matters if Google never indexes your pages. After optimizing images, verify your URLs appear in Google's index using IndexFlow's Bulk Index Checker.
Correct — this tool runs 100% in your browser using the HTML Canvas API. Your image is loaded into memory, redrawn at the new size, and exported back to a downloadable file. Nothing is sent over the network. You can verify this by opening DevTools > Network tab while you use the tool — you'll see zero requests.
WebP is the clear winner for 2026. It's supported by all modern browsers (Chrome, Firefox, Safari 14+, Edge), produces files 25-50% smaller than PNG/JPEG at equivalent quality, and Google explicitly recommends it. Use JPEG only when you need legacy browser support and PNG only when you need transparency without WebP.
Facebook and LinkedIn recommend 1200×630 pixels (1.91:1 ratio). Twitter accepts the same size for summary_large_image cards. Use the OG image preset to get the right dimensions instantly. Keep file size under 200KB for fast preview loading on social platforms.
Downscaling (making images smaller) preserves quality very well — that's the recommended workflow. Upscaling (making images larger than the original) always loses quality because pixels are interpolated. For best results, start with a high-resolution source and downscale to the size you need.
Check the quality slider — at 100% quality, JPEG produces nearly lossless files that can rival PNG in size. For web use, 80-90% quality is usually indistinguishable from the original at 30-60% of the file size. Try WebP at 80% quality for the best size-to-quality ratio.