Tom's Editor is described as 'Free Online Image Editor and Converter. Supports 500 image formats. Has built-in clip-art library (public domain photos)' and is an website in the Photos & Graphics category. There are more than 25 alternatives to Tom's Editor, not only websites but also apps for a variety of platforms, including Windows, Mac, Linux and iPhone. The best alternative is IrfanView. It's not free, so if you're looking for a free alternative, you could try Photopea or Pixlr. Other great sites and apps similar to Tom's Editor are XnView MP (Free Personal), FastStone Image Viewer (Free Personal), Adobe Lightroom (Paid) and XnView (Free Personal).
FastStone Image Viewer is a fast, stable, user-friendly image browser, converter and editor. It has a nice array of features that include image viewing, management, comparison, red-eye removal, emailing, resizing, cropping and color adjustments.
Pixlr® makes it easy to transform everyday images into stunning works of art. Whether you’re applying a quick fix to your photos or adding your personal touch with effects, overlays, or borders, Pixlr has everything you need to make your moments beautiful.