Frequently asked questions
Everything about how the resizer handles your files.
- Are my images uploaded to a server?
- No. Every crop and resize happens inside your browser using the Canvas API. Your files never travel over the network, which is why the tool works offline once the page has loaded and why there is no sign-up.
- How many images can I resize at once?
- Up to 10 images per batch, and each one can be exported to every selected platform size in the same pass. Ten images across four presets gives you forty files in one zip.
- Why is my iPhone photo rejected?
- iPhones save photos as HEIC by default, and no browser can decode that format. Either change Settings → Camera → Formats → Most Compatible so your phone saves JPEG, or convert the file before uploading. JPG, PNG and WebP all work.
- Will my photos come out rotated?
- No. Phone cameras record orientation as EXIF metadata rather than rotating the pixels, and a naive canvas resize ignores it. This tool reads that metadata and applies the rotation before cropping, so portrait shots stay upright.
- What happens to the parts of the image that do not fit?
- Images are cropped to fill the target frame rather than squashed or letterboxed, so nothing is distorted. Use the crop focus control to choose which part of the image is kept — handy when the subject sits near the top or one side.
- What is the safe area on a YouTube banner?
- YouTube asks for a 2560×1440 upload but only guarantees the centre 1546×423 will be visible, because the banner is cropped differently on phones, desktops and TVs. The preview marks that region with a dashed outline so you can check your text sits inside it.
- What file format do I get back?
- PNG sources stay PNG so transparency survives; everything else is exported as high-quality JPEG, which is what the platforms re-encode to anyway and keeps file sizes sensible for large banners.
- Does it cost anything?
- No. There is no account, no watermark and no paid tier. Because the processing runs on your device rather than a server, the tool costs almost nothing to operate.