Image Resizer
Image Tools100% Private · In-BrowserResize 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
Add Your Images
Drop one or hundreds. The tool decodes the first file to preview the rule's effect on its real dimensions.
Choose A Size Rule
Percent scale for quick shrinks, max width/height to cap one side, or fit-within-a-box for uniform dimensions.
Pick Format And Quality
PNG, JPEG or WEBP output with a quality slider for the lossy two.
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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