Upload the wrong size and Instagram crops your face out of the frame. Post a 1200 × 630 px image on a Story and it gets stretched. This free social media image size tool resizes your image to the exact dimensions for every platform — 1080 × 1080 px for Instagram square, 1080 × 1920 px for Stories and Reels, 1280 × 720 px for YouTube thumbnails — in one click, no upload required.
No upload, no account, 100% private. This tool works directly in your browser using HTML5 canvas technology — your image is processed locally and never sent to any server.
Drop your image below to resize it to the correct social media dimensions instantly.
Tip: If your image doesn't match the required dimensions, use the image resize tool before applying platform presets. After resizing, you can also optimize the image for web or reduce the file size for faster uploads.
Every social media platform enforces specific image dimensions and aspect ratios for each post type. When you upload an image that doesn't match the expected ratio, the platform automatically crops it — often cutting off important parts of your image without warning.
Aspect ratio is the proportional relationship between width and height. Instagram posts accept ratios between 4:5 (portrait) and 1.91:1 (landscape). Anything outside that range gets cropped to the nearest accepted ratio. A 16:9 landscape photo uploaded to Instagram as a feed post will have its sides trimmed to fit 1.91:1 — losing around 10% of the image width on each side.
This tool works directly in your browser using HTML5 canvas technology. Select your target platform, and it crops and resizes your image to the exact pixel dimensions the platform expects — giving you full control over what gets shown.
Use this table as your go-to reference for the correct image size for social media across every major platform. All sizes are in pixels and reflect current platform recommendations.
| Platform & Format | Size (px) | Ratio | Notes |
|---|---|---|---|
| Instagram Square Post | 1080 × 1080 | 1:1 | Most versatile feed format |
| Instagram Portrait Post | 1080 × 1350 | 4:5 | Takes up more screen space in feed |
| Instagram Landscape Post | 1080 × 566 | 1.91:1 | Widest accepted feed format |
| Instagram Story / Reel | 1080 × 1920 | 9:16 | Full-screen vertical format |
| Facebook Feed Post | 1200 × 630 | 1.91:1 | Standard feed and link preview |
| Facebook Story | 1080 × 1920 | 9:16 | Full-screen, same as Instagram |
| YouTube Thumbnail | 1280 × 720 | 16:9 | Min 640 × 360, max 2 MB |
| YouTube Banner | 2560 × 1440 | 16:9 | Safe zone: 1546 × 423 px center |
| TikTok Photo / Video | 1080 × 1920 | 9:16 | Vertical preferred; 1:1 also supported |
| LinkedIn Post Image | 1200 × 627 | 1.91:1 | Appears in feed at ~552 × 289 px |
| Pinterest Standard Pin | 1000 × 1500 | 2:3 | Tall pins perform better in feed |
| X (Twitter) Post | 1600 × 900 | 16:9 | Displayed cropped to ~2:1 in timeline |
Instagram is the platform where image sizing causes the most confusion. Here are the three core feed formats and when to use each one:
A 4000 × 3000 px landscape photo uploaded directly to Instagram as a feed post gets cropped to 1.91:1 — Instagram trims the top and bottom. Resize it to 1080 × 1080 px or 1080 × 1350 px first using the social media image size tool above and you decide exactly what gets shown.
The 4:5 portrait format (1080 × 1350 px) is widely considered the best-performing feed format on Instagram because it takes up the most vertical screen space — giving your image more visibility before users scroll past it.
Not every image needs to be resized before posting. Here is when it matters most:
| Situation | Resize? | Why |
|---|---|---|
| Posting to Instagram feed | Yes | Instagram crops anything outside the 4:5 to 1.91:1 ratio range. Resize first to control composition. |
| Creating YouTube thumbnails | Yes | Thumbnails must be 16:9. Wrong ratio results in black bars or cropping at different display sizes. |
| Uploading to Pinterest | Yes | Tall pins (2:3) outperform square or wide formats. Resize to 1000 × 1500 px for best visibility. |
| Sharing photos in a chat or message | Not needed | Messaging apps display images at original proportions. No cropping enforcement. |
| Emailing an image as attachment | Not needed | Email clients don't enforce aspect ratios. Only file size matters for attachments. |
| Posting to X (Twitter) | Optional | X displays a cropped preview in the timeline but shows full image on click. Resizing improves the preview crop. |
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Works best with JPG, PNG and WebP images – processed locally in your browser.