Issue No. 001·March 21, 2026·Seoul Edition
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Useknockout

beta

open-source background removal API

otherApril 25, 2026
Developer ToolsAIImage Processing
What It Does

Details

Useknockout provides a background removal API that processes images to produce transparent PNG outputs. It uses BiRefNet, a state-of-the-art model for background removal tasks, to deliver high-quality results with fast processing times and at a significantly lower cost than competing services like remove.bg.

Who It's For

Best fit users

  • Developers
  • Designers
  • E-commerce businesses
Why It Matters

Why this one made the cut

The service addresses the need for an efficient and cost-effective way to remove backgrounds from product and subject photos. Its affordability and high quality make it accessible for businesses and developers looking to automate image processing without the high costs of alternatives.

Differentiator

What makes it different

Useknockout differentiates itself by being 40× cheaper than similar services while maintaining high quality, and it is open-source and self-hostable, offering more control and flexibility compared to other background removal APIs.

Sources

Where we found it

Sources

GLOBAL · Hacker NewsENApr 25, 2026Visit

First discovered Apr 25, 2026 · Hacker News

Useknockout | IndiePulse