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Bulk Resize

Resize multiple images at once. Set a target width, height, percentage, or longest edge. Maintain aspect ratio automatically. Download individually or grab all as a ZIP.

📦 Upload images to resize PNG, JPG, WebP, BMP — multiple files supported
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Need to convert formats too?

Use Format Converter to change PNG, JPG, WebP, BMP, and ICO formats while resizing.

Format Converter →

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Frequently Asked Questions

How many images can I resize at once?
There's no hard limit — it depends on your browser's memory. We've tested with 50+ images without issues. For very large batches (100+), consider doing them in groups of 50.
Will resizing reduce quality?
Downscaling (making images smaller) uses high-quality bicubic interpolation in the browser, so quality loss is minimal. Upscaling (making images larger) will reduce sharpness since new pixels are interpolated. Use PNG for lossless output, or JPG/WebP with 90%+ quality for best results.
Does this work with animated GIFs?
Bulk Resize handles static images only. For animated GIFs, use our dedicated GIF Resizer which preserves all frames and animation timing.