If you're looking for a service that can integrate with mainstream design apps to automate background removal, Remove.bg is a strong contender. It uses AI to strip backgrounds rapidly and accurately, and it supports integration with a variety of design apps. The service has flexible pricing and a free account with limited credits, so it's useful for occasional use.
Another strong contender is Cutout.Pro, which combines AI and computer vision to automate image and video editing tasks. Automatic background removal is one of its many features, and it also offers an API to build the tools into your own apps. That makes it a good choice for both individuals and developers.
If you need high-quality cutouts and want to process lots of images at once, Slazzer is worth a look. It integrates with Adobe Photoshop and has a credit-based system with a variety of pricing plans, including a free option. Slazzer's algorithms are more sophisticated than some rivals, with a focus on precision and speed, which is good for graphic designers and e-commerce sites.
Last, PhotoScissors automates background removal with deep neural networks. It can handle a variety of image formats and offers color and transparency options, so it's good for e-commerce and photo montages. It can process images online or offline, depending on your needs.