Quick Platform Reference
Every social media platform expects a specific aspect ratio. Post at the wrong size and the platform either crops, stretches, or adds ugly letterboxing.
🎬 YouTube Thumbnails
The most important real estate in your channel. YouTube shows this across desktop, mobile, and embeds.
Read full guide →📷 Instagram Feed Posts
The classic Instagram square. Also works for portrait (1080×1350) and landscape (1080×566).
Read full guide →💼 LinkedIn Posts
LinkedIn's sweet spot for feed images. Wide aspect ratio, no cropping or stretching in the feed.
Read full guide →𝕏 Twitter/X Posts
X uses center-crop on portrait and super-wide images. 16:9 landscape is safest.
Read full guide →🎮 Twitch Panels
Ultra-wide images for channel customization. The trickiest aspect ratio — needs precise composition.
Read full guide →📌 Pinterest Pins
Pinterest favors tall, portrait pins. Vertical content gets better engagement.
Read full guide →Why These Dimensions Matter
Social platforms don't stretch or crop lightly—they crop *intelligently*. Instagram crops from center, Twitter crops landscape first, LinkedIn shows full-width. If your image doesn't match the expected ratio, you'll lose important visual information.
Using a tool like FrameForge (a free Chrome extension) lets you resize locally without uploading to Photoshop or Canva. Install it once, resize forever.
The Fast Way to Resize
- Install FrameForge from the Chrome Web Store
- Click the icon to open it
- Drag your image onto the canvas
- Select the platform from the preset dropdown
- Position the crop and export
Common Mistakes
- Using a square image for Twitter: Twitter crops center-wide (1200×675). A 1:1 square loses the top and bottom third.
- Uploading Twitch panels at the wrong aspect: 320×160 is brutally wide (2:1). Many crop from Instagram (1:1) and it looks cramped.
- Ignoring platform-specific safe zones: LinkedIn leaves gutters, YouTube doesn't. Check each platform's recommendation.
- Uploading unoptimized images to web tools: Every upload to a third-party resizer is a privacy leak. Use a local tool instead.
Pro Tips
- Use FrameForge's "Fit with Padding" mode for portrait images—it adds safe padding instead of cropping.
- For video thumbnails (YouTube, TikTok), leave a 20px margin from the edges for text overlays.
- Test every image at the actual platform size before publishing. Phone vs desktop previews differ.
- Create a local folder of resized templates for each platform—reuse them for consistency.
No account needed. FrameForge is a free Chrome extension that works entirely in your browser. No upload to a server, no account signup, no tracking. Install once and resize as many images as you want.