Knockout API vs Photoroom

Knockout API provides image and video processing through a browser app and API. Its image tools cover background removal and replacement, batch processing, masking, smart crop, stickers, outlines, shadows, and inpainting; the API also handles upscaling, portrait restoration, colorization, and object removal. Video background removal runs asynchronously, with job polling for progress. The browser Canvas supports layered designs with text and effects, and users can save canvases and cutouts to a free account. Developers can connect through REST, any HTTP client, or official Node, React, Python, and CLI options. The service says it manages GPU processing, endpoint updates, usage records, credentials, teams, and billing. Its privacy policy says uploaded images are processed in GPU worker memory, not retained after the response, and not used to train models. The Free plan is free, with 30 images per month and 60 requests per minute. Pay-as-you-go is $0.02 a month, with metered usage billed monthly; Plus is $10 a month. Paid tiers have no monthly cap and a 600-request-per-minute limit.

Photoroom is a freemium photo editor from a maker founded in 2019 and headquartered in Paris, France. It runs on the web, iOS, and Android, with batch editing, layers, masking tools, cloud sync, and AI retouching. A free plan is available. The Pro plan includes 8,000 AI credits and 1,000 exports per month for up to 50 seats. Max provides 25,000 AI credits and 3,000 exports monthly, also for up to 50 seats. Ultra provides 75,000 AI credits and 10,000 exports monthly with the same seat limit. Enterprise uses custom credits and includes adjustable AI Shadows, visual QA tools, SLA and SSO, plus dedicated onboarding and support. The listed plans do not include prices. These plans set different monthly allowances for AI processing and exports, while the editing features support both batch workflows and individual image adjustments. Cloud sync extends the workflow across supported platforms, and masking and layers provide control over image composition.