Screenit — Image Resizer

About

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