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Exact dimensions • Exact file-size option • Browser-based

Resize Image to 100x100 Pixels

Resize any image to exactly 100 by 100 pixels, crop it cleanly, and optionally keep the final JPG or WebP under a target file size.

✓ No signup✓ Fit or crop✓ JPG, PNG & WebP✓ Exact KB check

Drop an image here

or click to choose a file

JPG • PNG • WebP • Up to 25 MB

Images are processed in your browser

Target specification

100×100 image specifications

ResizeDock verifies the target after processing and can also validate a maximum file-size requirement.

Width100 px
Height100 px
Aspect ratio1:1
OrientationSquare
Total pixels10,000
Exact file sizeOptional50 KB, 100 KB, 200 KB, 500 KB or custom

How to resize an image to 100×100

  1. Upload your image.Choose a JPG, PNG or WebP file from your device.
  2. Choose Fit or Crop.Crop fills the target frame; Fit keeps the whole image visible.
  3. Set an optional file-size limit.Pick a quick target such as 50 KB or 100 KB, or enter your own value.
  4. Create and verify the result.ResizeDock checks the dimensions, ratio, format, quality and target KB before download.

Fit vs. Crop

Crop

Best when the final canvas must be completely filled. ResizeDock preserves proportions and lets you choose which part of the image stays visible.

Fit

Best when you need to keep the entire original image. Empty space may be added around the image when the aspect ratios differ.

Why use 100×100 pixels?

100×100 is a compact square format that works well when a service asks for a small avatar, thumbnail or directory image. The exact-result check is useful when the upload form also sets a file-size limit.

Common uses for 100×100

  • Small profile pictures and avatars
  • Compact account or directory thumbnails
  • Square icons and lightweight web graphics
  • Upload forms that require an exact 100 × 100 image
Related presets

Try nearby image sizes

72×72Square image size300×300Square image size512×512Square image size1:1Aspect ratio converter
FAQ

Questions about 100×100

Can I resize an image to 100×100 without stretching it?

Yes. Use Crop to fill the target frame while preserving proportions, or Fit to keep the whole image visible without distortion.

What aspect ratio is 100×100?

100×100 uses a 1:1 aspect ratio.

Can I set a maximum file size?

Yes. For JPG and WebP, set a maximum KB value and ResizeDock will automatically look for the highest quality that stays under the limit.

Can I make a 100×100 image under 50 KB?

Yes. Choose JPG or WebP, select a 50 KB target, and ResizeDock will automatically search for the highest quality that stays under the limit.