About social media sizes
This tool resizes an image to the exact pixel size each social platform expects — Instagram posts and stories, Facebook covers, Twitter/X headers, YouTube thumbnails, LinkedIn, Pinterest, TikTok and more. Pick a preset and it crops to fill or pads to fit, then you download the perfectly sized image. It runs in your browser.
How Social Resizer works
How to use it
- Drop or choose an image.
- Pick the platform and size preset.
- Choose crop-to-fill or fit-with-background, then download.
How it works
Each preset stores the official width and height for that platform. Your image is scaled and either centre-cropped to fill the frame exactly, or scaled to fit inside it with a background. The output is rendered on a canvas at the exact target resolution.
Why exact sizes matter
Uploading the right dimensions stops platforms from cropping or compressing your image awkwardly, so it looks sharp and nothing important is cut off.
Common uses
- Resize for an Instagram post or story
- Make a YouTube thumbnail
- Create a Facebook cover photo
- Size a Twitter/X header
- Make a LinkedIn banner
- Create a Pinterest pin
- Size a TikTok video cover
- Fit an image to any social size
Frequently asked questions
How do I resize an image for social media?
Drop your image, pick the platform preset and download the correctly sized file.
Which platforms are supported?
Instagram, Facebook, Twitter/X, YouTube, LinkedIn, Pinterest, TikTok and more.
What is the difference between crop and fit?
Crop fills the frame and may trim edges; fit shows the whole image with a background.
Are my images uploaded?
No — the resize happens in your browser.
Will the image stay sharp?
Yes — it is rendered at the exact target resolution.
What size is a YouTube thumbnail?
1280×720 pixels — one of the presets here.
Is there a watermark?
No — the output is clean.
Is it free?
Yes — completely free with no sign-up.