Utilities

Resize Image

Resize images to exact dimensions in pixels or percentage.

Batch ready

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100% Free

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Local Files

Browser-Based

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5 min readLast reviewed 2026-07-06

What this tool does

Resize Image changes the pixel dimensions of your photos and graphics—set explicit width and height, lock aspect ratio, or scale by percentage for thumbnails and social crops.

It accepts common formats including JPEG, PNG, WebP, HEIC, GIF, and SVG, processing everything locally without uploads.

Why you might need it

Websites, ad specs, and form validators often reject images above certain pixel counts. Resizing fixes rejections without opening desktop software.

Downscaling also reduces file size before compression—smaller pixel counts mean faster pages and emails even before JPEG Compressor runs.

Common use cases

  • Create 1200×630 Open Graph images from oversized camera photos
  • Generate uniform thumbnails for a product catalog spreadsheet
  • Shrink passport-scan JPEGs under upload portal limits
  • Batch-resize event photos for a lightweight gallery
  • Prepare consistent hero images for a Notion wiki

Step-by-step guide

  1. 1Upload images in any supported format.
  2. 2Enter target width and height in pixels, or use the percentage slider for proportional scaling.
  3. 3Keep aspect ratio locked unless you intentionally need stretching—unlock only for fixed slot specs.
  4. 4Process All and verify dimensions in the results preview.
  5. 5Download resized files individually or as ZIP.

Tips & best practices

  • Downscaling is safer than upscaling—enlarging small images cannot invent real detail.
  • For social templates, combine resize with Crop Image when you need exact aspect ratios like 1:1 or 9:16.
  • Resize before compressing JPEGs—order matters for smallest final files.
  • Note original filenames in client folders; resized outputs share basenames with new dimensions baked in processing.

Limitations

  • Upscaling beyond source resolution produces soft results—use AI Image Upscaler when enlargement is unavoidable.
  • SVG resizing rasterizes at output dimensions—use vector editors for infinite-scale logos when possible.
  • Common mistake — resizing once then cropping without checking aspect ratio: you may cut off faces or product edges.

Frequently asked questions