Image Resizer

Image Tools100% Private · In-Browser

Resize a whole batch with one size rule — percentage, max width/height or fit-in-a-box — each image keeping its own aspect ratio.

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Key features

  • Four resize modes: scale by percentage, limit width, limit height, or fit entirely inside a W × H box.
  • Bulk queue with no file-count cap; every file is decoded, resized and re-encoded independently.
  • A live example read-out shows exactly what the current rule does to the first image before you process.
  • Exports as PNG, JPEG or WEBP, with a quality slider for the lossy formats.
  • Real counters, Pause/Resume/Cancel, and Retry Failed for files that could not be decoded.
  • Every completed row shows its true output dimensions, so you can verify results at a glance.

How it works

  1. Add Your Images

    Drop one or hundreds. The tool decodes the first file to preview the rule's effect on its real dimensions.

  2. Choose A Size Rule

    Percent scale for quick shrinks, max width/height to cap one side, or fit-within-a-box for uniform dimensions.

  3. Pick Format And Quality

    PNG, JPEG or WEBP output with a quality slider for the lossy two.

  4. Process And Download

    Run the queue, check per-file dimensions, then save individually or download everything as one ZIP.

Tips for better results

  • Downscaling (a 4000px camera photo to 1600px for the web) looks great; extreme upscaling cannot invent detail that was never captured.
  • Max width/height modes never upscale — smaller images pass through at their original size.
  • Each output side is capped at 8192 px.
  • JPEG output fills transparent areas with white, same as the Image Converter.

Frequently asked questions

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