Image Resizer & Compressor

How to resize and compress photos

1. Add your photos. Click the box or drag images onto it. You can add a whole batch at once, and each file shows its pixel size and file size.
2. Pick a size preset. Choose the marketplace or place where the photo is going, such as Etsy, eBay or Shopify, or choose Custom and type a width and height. Keep size only compresses the file.
3. Choose how the photo fits. For square and other fixed sizes, pad keeps the whole photo and adds a border, crop fills the frame and trims the edges evenly, and fit inside keeps the whole photo without a border.
4. Pick the format and quality. JPG suits product photos, WebP gives the smallest files, and PNG keeps sharp edges and transparency. Move the quality slider to trade file size against detail.
5. Or set a target file size. Tick Compress to a target file size, choose 20, 50, 100, 200 or 500 KB (or type your own), and decide whether the tool may reduce the pixel size if quality alone is not enough. The result line shows whether the target was met.
6. Press Resize images. Every photo shows its size before and after, in pixels and in KB or MB. Download each one, or all of them in one ZIP file.

How to compress an image to 100KB or 200KB

1. Add the photo (or several).
2. Tick Compress to a target file size.
3. Pick 100 KB, 200 KB or another preset, or type your own limit in Custom. A link such as this page with ?target=100 opens with the target already set.
4. Press Compress to target and download the file if the result is at or under the target.

The tool first lowers the JPG or WebP quality, step by step, and keeps the largest file that still fits. Only if you allow it does it then reduce the pixel size, never below 100 px on the longest side. If it still cannot get there, it says “Target not reached” and still offers the smallest file it made, so you can decide what to do.

Many job, exam, visa and school uploads also require a pixel size or a JPG. If your form asks for that, set Custom width and height (or a crop) first, then set the KB target. Always check the form’s own instructions; we do not list official limits here.

It depends on the form. Type 1 MB (1024 KB) or any other limit from 10 KB to 10,000 KB in the Custom box. If a portal still rejects a file we report as under 100 KB, try a custom target a few KB lower: some sites count 1 KB as 1,000 bytes, while this tool uses 1,024.

Photo size presets

Marketplaces update their photo guidance from time to time, so check the current numbers in your seller help pages. Our guide to Etsy listing photos summarises Etsy's published requirements and how to plan a full photo set.

Pad, crop or fit inside?

• Pad (add a border) keeps every part of the photo and fills the empty space with the colour you choose. Use it when nothing may be cut off, for example a long bag strap or a tall bottle on a square canvas. White works for most product photos, and Amazon main images must be on white.
• Crop centre fills the whole frame and trims the same amount from both sides, or from the top and bottom. Use it for social posts and for photos where the item sits in the middle with background around it.
• Fit inside scales the photo until it fits within the width and height you set, with no border. One side will match exactly and the other will be smaller.

Choosing a format and quality

JPG is accepted everywhere and is the best choice for photographs. At 80 to 90% quality the difference from the original is very hard to see, while the file is often a fraction of the size of a phone photo. WebP usually makes files 25 to 35% smaller than JPG at the same visual quality and is supported by every modern browser and by Shopify and most website builders, but some marketplaces and older apps still do not accept it, so use JPG for marketplace uploads if in doubt. In Target size mode the quality slider is automatic: JPG is the safe default for forms, WebP can come out smaller but is sometimes rejected, and PNG is not offered. PNG is lossless, so the quality slider does not apply. It is best for logos, screenshots, text and images with a transparent background, but photos saved as PNG are often larger than the original JPG.

If a result is larger than the original, the original was probably already well compressed or smaller than the preset. Keep the original, choose JPG or WebP, or lower the quality a little. When you shrink a large phone photo to marketplace size, savings of 70 to 95% are normal.

Good to know

• Enlarging: if a photo is smaller than the preset, it is enlarged to fit, which makes it bigger but cannot add detail. Tick "Do not enlarge" to keep small photos at their own size. For the sharpest listing photos, resize from your camera's original file.
• Rotation: phone photos that are stored sideways with a rotation tag are turned the right way up before resizing.
• Photo details removed: saving through the browser removes hidden EXIF data such as camera model and GPS location, which is good for privacy. Colour profiles are converted to standard sRGB.
• Animated GIFs become a single still image. HEIC iPhone photos only open in browsers that support them, such as Safari.
• Very large images are limited to 8000 px per side to stay within browser memory limits, especially on phones.

After resizing

Give each photo a descriptive file name and alt text before you upload it. The Image SEO Text Generator drafts alt text, titles and SEO file names, and our guide on alt text for product photos shows what to write for each type of photo. Need the photos in a document instead? Turn them into one file with JPG to PDF, or shrink an existing PDF with Compress PDF, which is also the right tool when an upload must be a PDF under 100 KB or 200 KB. iPhone photos that will not open? Convert them first with HEIC to JPG. All our PDF tools run in your browser in the same private way.

How this tool works

The tool uses the Canvas API that is built into every modern web browser. Each photo is opened on your device, drawn onto a canvas at the new size in a few smooth steps (large reductions are done in halves, which keeps fine detail such as fabric, stitching and text crisp), and then saved again as JPG, PNG or WebP with the quality you chose. Target size mode uses the same canvas: it searches for the highest quality that fits your KB limit and, only if you allow it, scales the canvas down, all on your device. No image is sent to our server or any other service, so it is safe for unreleased products and private photos, and it keeps working on a slow connection once the page has loaded.

Want the full explanation? Read our guide: Etsy shop sections and listing photos: a practical guide.

More guides on this topic:

• How to write alt text for product photos

Need HEX and RGB codes from a photo? Use Color Palette from Image. For a logo that will go in an email footer, see the Email Signature Generator (Gmail recommends 70–100 × 300–400 pixels).