Resize Image

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Resize images to any dimension while keeping quality

Image Tools

How to Use Resize Image

  1. 1Upload your image using the file picker
  2. 2Enter the target width and/or height in pixels
  3. 3Choose whether to maintain aspect ratio
  4. 4Click Resize and download the result
  5. 5Download the resized image

About Resize Image

Resize any image to exact pixel dimensions or by percentage. Supports JPEG, PNG, WebP and more. All processing happens in your browser — no uploads required.

Key Features of Resize Image

  • Resize to exact pixel width and height
  • Aspect-ratio lock to prevent image distortion
  • Supports PNG (lossless), JPG, and WEBP output formats
  • Quality slider for JPG and WEBP compression control
  • Instant browser Canvas API processing — no uploads
  • No watermarks added to output images
  • Handles large photos up to original resolution
  • Drag-and-drop image upload

Supported Formats

Input Formats

PNGJPG / JPEGWEBPGIFBMP

Output Formats

PNGJPG / JPEGWEBP

PNG output is always lossless. For JPG and WEBP, use the quality slider to control file size. Animated GIFs are flattened to the first frame.

Examples

Social Media Banner

Resize a 4000×3000px photo to 1200×630px for a Facebook/LinkedIn banner — unlock aspect ratio and enter the exact dimensions.

Input

Landscape photo 4000×3000px

Output

Resized image 1200×630px JPG

Product Thumbnail

Downscale a 2400×2400px product photo to a 300×300px WEBP thumbnail with aspect ratio locked for a clean square crop.

Input

Product photo 2400×2400px

Output

Thumbnail 300×300px WEBP

Email Signature Logo

Shrink a 1000×400px company logo PNG to 250×100px while keeping aspect ratio locked and format as PNG to preserve transparency.

Input

Company logo PNG 1000×400px

Output

Logo 250×100px PNG (lossless)

Common Use Cases

  • Resizing images to exact dimensions for website uploads
  • Creating correctly sized social media images (Twitter, Facebook, LinkedIn)
  • Reducing large photos before sending by email
  • Generating thumbnails for product galleries or blogs
  • Resizing screenshots for documentation or tutorials
  • Standardizing image dimensions across a set of files

Troubleshooting

Image appears stretched or squished

Solution

Enable the aspect-ratio lock (chain icon between width and height) to preserve proportions when resizing.

Output file is larger than the original

Solution

Switch the output format to WEBP or JPG and lower the quality slider. PNG is lossless and typically produces larger files.

Resized image looks blurry when enlarged

Solution

You have upscaled beyond the original resolution. For sharp results, avoid enlarging images more than 150% of their original size.

Frequently Asked Questions

Does resizing affect quality?

Enlarging an image beyond its original size may cause some blurriness. Reducing size generally maintains quality well.

Is my image uploaded to a server?

No. All processing uses the Canvas API in your browser. Nothing is sent to a server.

Can I resize multiple images at once?

Currently the tool processes one image at a time. For batch resizing, process each image individually or use an image editor like GIMP or ImageMagick.

What is the maximum output resolution?

There is no hard cap, but very large canvas sizes (above 10000x10000 pixels) may hit browser memory limits. Most use cases up to 4K resolution work fine.