Knockout API vs Pixazo AI Video Background Remover
Knockout API
useknockout.comPixazo AI Video Background Remover
pixazo.aiSide by side
| Figure | Knockout API | Pixazo AI Video Background Remover |
|---|---|---|
| Price from | $0.02/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Plans published | 7 | 1 |
| Spec score · AI Video Background Removers | 8.2 (#12) | 7.5 (#21) |
| Security | The privacy policy says API tokens are SHA-256 hashed, passwords are managed by Supabase Auth using bcrypt, and traffic is encrypted via TLS. | Pixazo’s security page says it is GDPR compliant and describes AWS hosting, salted and hashed account passwords, and encrypted data in transit and at rest. |
| Support | The site lists community support for Free, email support for Pay-as-you-go, and Slack support for Volume. | Pixazo’s About page lists support channels by phone in the United States, United Kingdom, and India, and gives [email protected]. |
Plans
Knockout API
- FreeFree
- Pay-as-you-go$0.02 a month
- Knockout Plus$10 a month
- FreeFree
- Pay-as-you-go$0.02 a month
- Knockout Plus$10 a month
- VolumePriced on request
In their own words
Knockout API
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.
Pixazo AI Video Background Remover
Pixazo AI Video Background Remover separates a moving subject from its video background frame by frame using AI matting. It works with ordinary clips, so a green screen and manual rotoscoping are not required. The workflow is to upload a clip, let the tool isolate the subject across frames, then replace the background or export a transparent video. Background removal changes the picture while exported audio is retained. The tool runs in a modern browser without installation and opens in Pixazo’s agentic editor for background changes or transparent exports. Pixazo presents it for creators and streamers, product and UGC advertisers, editors, and course or explainer video makers. Clear, well-lit footage such as talking-head, product-demo, dance, or creator clips is recommended. Fast motion, motion blur, and fine hair can cause edge shimmer, while longer or high-resolution clips take more processing time. A free plan is listed at free, and a 7-day trial is noted.