Dewatermark is a good choice. The tool is designed to remove watermarks from photos using sophisticated visual detection technology. It handles a range of image formats and has a manual brush option for more selective editing. The output images are indistinguishable from originals and can be upscaled without loss of quality, so it's good for commercial use.
Another tool worth a look is WatermarkRemover. It's fast and easy to use to strip out watermarks from photos, and it can handle a lot of image formats, including PNG, JPG and JPEG. It also offers a bulk conversion option and an API for commercial use, so you can integrate it into your own workflow to strip out unwanted logos and text.
If you want a broader range of cleaning tools, Media.io offers a range of AI-powered tools, including an AI Object Remover and Watermark Remover. It's geared for content creators, but it handles a range of formats. It's easy to use and has enough power to be useful, so it's a good all-purpose tool for sprucing up and cleaning your photos.
Last, ImgCleaner is a free tool that uses AI to instantly remove objects from photos. It can handle JPG and PNG images, and it offers a preview option before you download the image. It's good for personal or commercial use, and it offers high-quality and watermark-free image processing.