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These six cover most everyday photo chores: getting a file under an upload limit, hitting exact pixel dimensions, trimming edges, switching format, and putting your name on a picture. If a site keeps rejecting a photo and you are not sure why, open Image Viewer first. It shows the file size, dimensions, and type side by side.
Files stay in your browser.
Compress Image makes a photo file smaller while its width and height stay the same. Pick WebP, JPEG, AVIF or PNG and a quality. Free, no signup, no upload.
Open toolResize Image scales a photo to the exact width you type, or to a forced width and height, up to 12000 px. Free, no signup, no upload.
Open toolCrop Image cuts away the edges you do not want, freehand or locked to 1:1, 4:3, 16:9 or 4:5, and can scale to an exact size. Free, no signup, no upload.
Open toolImage Converter turns JPEG, PNG, WebP, GIF, BMP, SVG or AVIF images into JPEG, PNG, WebP or AVIF at the same pixel size. Free, no signup, no upload.
Open toolAdd Watermark repeats your name across a photo on an angled grid, or puts it in one corner, at the opacity you set. Saves a PNG. Free, no signup.
Open toolImage Viewer opens any photo online at full size and shows its pixel dimensions, megapixels, file size, and type. JPG, PNG, WebP, GIF. Free, no upload.
Open toolWhich one fixes your problem
- Image Viewer: Start here when an upload fails, so you know whether the problem is the file size, the pixel dimensions, or the format.
- Compress Image: Makes the file smaller and keeps the width and height. It saves WebP by default, has a quality slider from 10 to 95%, and tells you if a setting would make the file bigger than the original.
- Resize Image: Use it when a form asks for exact pixels, such as 1080 × 1080. Shrinking a huge camera photo often saves more bytes than compression does.
- Crop Image: Cuts away edges freehand or locked to a ratio. For a circle, heart, or star, the Crop & Shape tools are a better fit.
- Image Converter: Switches between JPEG, PNG, WebP, and AVIF (AVIF only where your browser can encode it). Pick PNG when the picture has transparent areas.
- Add Watermark: Writes a line of text in the corner of a photo. To stamp a logo file instead, use Add Logo.
Frequently asked questions
Should I compress or resize a photo to make it smaller?
Which format should I convert my image to?
Why did compressing make my file bigger?
How large a file can these tools open?
Something else? Write to us.