About this tool
Resizes one or many images in batch. Apply a percentage scale (each image keeps its own ratio) or set dimensions for the whole set. When you process more than one image, the result is delivered as a ZIP file. Useful for preparing batches for the web, social media, presentations, or to meet size limits in forms.
How to use
- Upload one or many images (up to 30 at a time).
- Choose the mode. Percentage scale works best for batches with different aspect ratios. Fixed dimensions is useful when you need a specific format.
- Pick the output format and click resize.
- Download the file (one image) or the ZIP (multiple).
Frequently asked questions
- Can I process many images at once?
- Yes. Upload up to 30 images and the result comes as a ZIP. For batches with different aspect ratios, prefer the percentage scale mode, since each image is adjusted while keeping its own ratio. The dimensions mode with the ratio lock on also works in batch, letting the other dimension adjust per file.
- Can I enlarge an image without losing quality?
- No. Resizing to a larger size means creating pixels that didn't exist in the original, which is guesswork. The result becomes blurry or pixelated depending on the algorithm. For quality enlargements, use source images with high resolution. Shrinking always looks good, enlarging is always an approximation.
- Which output format should I pick?
- PNG for images with transparency or sharp text/graphics. JPEG for photos, smaller in size but no transparency support. WebP is newer, with excellent compression and transparency support, but check whether the platform you'll use it on supports the format.
- Is aspect ratio preserved automatically?
- By default yes, to avoid distortion. If you turn the option off, you can set width and height independently, stretching or squashing the image. Useful for fitting a specific aspect ratio (16:9, square, etc.) without cropping.