Screenit — Image Resizer

Resize, optimize and convert images in one click. Beautiful, fast and 100% private — nothing leaves your browser.

Screenit is the fast, private way to resize, optimize, convert and beautify images — right inside your browser. No uploads, no sign-up, no waiting. Every pixel is processed locally on your device, so your images never leave your computer. Whether you're prepping a post for Instagram, a thumbnail for YouTube, a header for X, or just shrinking a screenshot before you send it, Screenit gets it done in a single click. WHY YOU'LL LOVE IT • 100% private — images are processed in your browser and never uploaded anywhere. • Lightning fast — a powerful in-browser engine resizes and converts instantly. • Beautifully simple — a clean editor with a live preview that updates as you type. • Completely free — no account, no watermark, no limits. RESIZE & CONVERT • Set any width and height, with an optional locked aspect ratio. • Quick scale presets: 25%, 50%, 75%, 150%, 200%. • Three fit modes — Fit, Fill and Stretch — for perfect framing every time. • Export to WebP, JPEG or PNG with a quality slider to balance size and fidelity. • See exactly how much you saved with a live before/after comparison — hold to peek at the original. SOCIAL MEDIA PRESETS One click sizes your image perfectly for: • Instagram — square post, portrait, story / reel • X / Twitter — post image, header • LinkedIn — feed post, banner • YouTube — thumbnail, channel banner • Facebook — cover, feed post • Web & devices — OG / hero image, favicon, wallpapers STUNNING BACKDROPS Turn a plain screenshot into something share-worthy: • Drop your image onto a gradient, a solid color, or a beautiful wallpaper. • Fine-tune the aspect ratio, padding, corner radius and shadow. • Perfect for product shots, app screenshots and social posts. CAPTURE ANYTHING • Drag to capture any region of a page (Alt+Shift+S). • Right-click any image on the web and choose "Open in Screenit". • Paste an image straight from your clipboard. BATCH READY • Drop a whole folder of images at once. • Apply your settings to all of them and download everything as a single ZIP. Screenit works entirely in your browser and asks for nothing in return — no account, no tracking of your images, no cloud. Resize smarter, share faster, and keep your images private. KEYBOARD SHORTCUTS • Alt+Shift+P — open Screenit anywhere • Alt+Shift+S — capture a screen region