Bulk Image Resizer Online (Free) — Batch Resize Photos in Seconds

1. Add images

Drop images here or click to chooseJPG, PNG, WebP, GIF or SVG · up to 50 at once

2. New size

Width (px)

Height (px)

Allow enlarging small images

Save as

Quality: 85%

Resized in your browser. Your images are not uploaded.

How to resize many images at once

Drop up to 50 images into the box (JPG, PNG, WebP, GIF or SVG).
Choose how to resize:
- Fit inside – each image is made as large as possible inside a box, for example 1200 × 1200, without changing its shape. Best for websites, blogs and email.
- Exact size – every image becomes exactly the size you enter. If the shape is different, the edges are cropped from the centre so nothing is stretched. Good for product photos and thumbnails that must match.
- Percentage – scales every image by the same amount, such as 50%.
Pick the output format and quality, click Resize images, then download each image or all of them as a ZIP.

Which size should I use?

Blog and website images: 1200–1600 px wide is enough for most layouts, including high-resolution screens.
Social media: 1080 × 1080 (Instagram square), 1080 × 1350 (Instagram portrait), 1200 × 630 (link previews on Facebook and LinkedIn).
Online shops: square images of 1000–2000 px work well with zoom features. Use the same size for every product.
Email attachments: 1280 px on the long side keeps photos sharp and small.

Quality and file size

Making an image smaller always removes pixels, but done well the result looks just as sharp at its new size. This tool scales in several steps with high-quality smoothing to avoid jagged edges. For JPG and WebP, a quality of 80–90% gives a good balance; below about 70% you may see blocky artefacts. PNG is lossless, so the quality slider does not apply, and PNG photos are much larger than JPG or WebP. Transparent PNGs saved as JPG get a white background.

Enlarging a small image does not add detail – it only makes it bigger and softer – so enlarging is off unless you turn it on. GIF animations are saved as a single still frame, and SVG files are converted to a normal image at the chosen size.

Privacy

Resizing happens in your browser using the HTML canvas. Your images are not uploaded, so the tool also works for private photos. Note that the resized files do not keep the original EXIF data (camera details and GPS location), which is usually a good thing when you share photos online.