Resize Images for Twitter / X

Resize images for Twitter / X to the exact dimensions the platform expects, from in-tweet photos to profile headers.

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Use it right here — already set up for this task

Image Resizer

Resize Images Online

Resize images to custom dimensions or social media presets. Works in your browser - no upload needed.

Click to upload or drag and drop

PNG, JPG, WebP (max 50MB)

Upload an image to get started

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About Image Resizer

Our free image resizer tool lets you resize images to any custom dimensions or choose from popular social media presets. Perfect for optimizing images for Instagram, Facebook, Twitter, YouTube, and more.

Features:

  • Custom width and height controls
  • Maintain aspect ratio toggle
  • Quick presets for social media platforms
  • Support for PNG, JPG, and WebP formats
  • Works entirely in your browser - images never uploaded to servers
  • Completely free with no signup or watermarks

How to use

  1. Upload Image — Drag and drop or click to upload a PNG, JPG, or WebP image.
  2. Set Dimensions — Enter custom width and height, or select a social media preset.
  3. Resize the Image — Click Resize Image to create the new version in your browser.
  4. Preview Result — Review the resized image preview and verify the new dimensions match your requirements.
  5. Download Resized Image — Click the download button to save your resized image in the original format.

Frequently asked questions

Can I resize images for social media?

Yes! We have built-in presets for Instagram Post, Instagram Story, Facebook Cover, Twitter Header, YouTube Thumbnail, and HD resolution.

Will resizing affect image quality?

Upscaling may reduce sharpness, but downscaling preserves quality well. Use the aspect ratio lock to prevent distortion.

What file formats can I resize?

You can resize PNG, JPG/JPEG, and WebP images up to 50MB in size.

Which format is my resized image saved in?

The same format as your upload: a PNG stays PNG, a JPG stays JPG, and a WebP stays WebP. To change the format, use the Image Format Converter.

Does Image Resizer upload my files to a server?

No. All processing happens entirely in your browser. Your files never leave your device, ensuring complete privacy and security.

What is the maximum image size I can resize?

You can resize images up to 50MB in file size. The new width and height can each be up to 16,384 pixels, the largest size browsers can reliably draw.

Standards & References

Last updated: 2026-09-28

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Why this matters

Twitter automatically crops oversized images to fit feed previews. Pre-sizing avoids ugly automatic crops and ensures the right part of your image is visible.

Step by step

  1. 1
    Drop in your photo
    Upload the source image.
  2. 2
    Pick a Twitter preset
    In-tweet (1600×900), Header (1500×500), Profile (400×400).
  3. 3
    Adjust crop
    Frame the photo correctly.
  4. 4
    Download
    Save the resized image.
  5. 5
    Post
    Upload to Twitter / X.

Frequently asked questions

What is the best image size for Twitter posts?

1600×900 (16:9) is the sweet spot for in-feed display.

What are Twitter / X header dimensions?

1500×500.

What size are Twitter profile pictures?

400×400, displayed as a circle.

Will Twitter compress my image again?

Yes — Twitter re-encodes uploads. Pre-sizing minimizes additional damage.

Is the resizer private?

Yes. No upload, no server. Runs in-browser.

Does Twitter support transparent PNGs?

Yes for profile pics; in-tweet PNGs may be flattened.

Try Image Resizer now
Free, private, no signup. Runs in your browser.
Open Image Resizer →

Further reading

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