Software Alternatives & Startups

CardStream AI VS Nullstack

Compare CardStream AI VS Nullstack and see what are their differences

CardStream AI

Cardstream.ai is open-source software that identifies trading cards the moment they appear on a live stream: name, set, card number and confidence in about half a second. It runs on your CPU and calls the recognition API once per card, not per frame.

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0 reviews
Pricing
Open source Freemium $11 / One-off (Smallest credit pack)

Full-stack Javascript Components for one-dev armies

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0 reviews
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Open source
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Self-hosted popularity
100% vs 0%
alternatives listed
4 vs 1

Base details

Website, pricing, platforms and company facts side by side.

CardStream AI
Nullstack
Website cardstream.ai nullstack.app
Pricing
Open source Freemium $11 / One-off (Smallest credit pack) Official pricing
Open source
Company Startup from the Czech Republic · 2026 —
Listed in

About CardStream AI and Nullstack

In their own words, as submitted to SaaSHub.

CardStream AI
Nullstack

Cardstream.ai is open-source software that identifies trading cards on live streams. Point a camera at a card and it returns the name, set, set code, card number, series and year in about half a second, with a confidence level and up to four alternative matches. It supports 25+ trading card...

Read more about CardStream AI

No description of Nullstack yet.

Features and specs

What each product offers, as listed by its team.

CardStream AI 12 features
Nullstack 5 features
  • Real-time card identification
    Names each trading card on stream in about half a second: name, set, number, series and year
  • Supported games
    25+ trading card games, including Pokémon, MTG, Yu-Gi-Oh!, One Piece and Lorcana
  • Confidence tiers
    Every match is rated High, Medium or Low; set a threshold to keep weak matches off the overlay
  • Alternative matches
    Up to four other cards it could have been, shown with every result
  • One API call per card
    A local motion gate and same-card check mean only a new card triggers an identification call
  • Runs on CPU
    Detection and gating run on your own computer, no GPU needed
  • Video sources
    Webcam, video file, OBS push over RTMP or SRT, RTSP/RTMP/SRT pull, WebSocket JPEG feeds
  • Stream overlay
    Browser UI with the match, a bounding box and a history of every card shown
  • Live settings
    Thresholds, game and set code can be changed from the browser mid-stream
  • Price statistics
    Optional USD median, range and latest sale for each match
  • Private by design
    Only one image crop per new card leaves your machine; the stream stays local
  • Open source
    Code and model weights under Apache-2.0; connect Ximilar’s API or your own recogniser
  • Full-Stack Capabilities
    Nullstack allows for the development of both client-side and server-side functionalities within a single project, providing a more unified development process.
  • Seamless SSR
    It offers built-in support for server-side rendering, improving performance and SEO without the need for complex configurations.
  • Zero tooling
    Nullstack provides a setup that requires minimal configuration and does not depend heavily on additional tools, simplifying the development workflow.
  • Component-based Architecture
    Promotes the use of components, encouraging modularity and reusability of code, which can improve maintainability and scalability of applications.
  • Hot Module Replacement
    Supports HMR, allowing developers to see immediate changes in their applications without refreshing the entire page, improving development efficiency.

Possible disadvantages

  • Smaller Community
    Compared to more established frameworks, Nullstack has a smaller community, which can result in fewer resources and third-party tools.
  • Learning Curve
    Developers need to learn the Nullstack-specific ways of handling both front-end and back-end development, which might be a hurdle for those accustomed to other frameworks.
  • Limited Ecosystem
    Due to its newer and less widely adopted nature, there might be limited third-party libraries and plugins readily available compared to more mature frameworks.
  • Rapidly Evolving
    Being relatively new and possibly evolving quickly, developers might face breaking changes more frequently compared to more established technologies.

Videos

Walkthroughs and reviews on video.

CardStream AI 1 video + Add
Nullstack 3 videos + Add

Cardstream Identifying a Card in Real Time

Full-stack with Nullstack - Part 3

More videos

  • - nullstack ship tracker
  • - Como fazer um Hello World com Nullstack passo a passo

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
CardStream AI
Nullstack
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing CardStream AI and Nullstack.

What's the story behind your product?

CardStream AI's answer

Cardstream.ai is built by Ximilar, a computer vision company in Brno, Czech Republic, and the maker of the Collectibles Recognition API. In live card breaks the seller opens packs on camera and names every card by hand. Cardstream.ai identifies those cards from the stream automatically. Most of the engineering went into keeping it cheap to run, so that the paid API is called only when a new card appears. It was first released as open source in September 2026.

What makes your product unique?

CardStream AI's answer

Cardstream.ai is open source and runs on your own computer. It watches the video you already stream and identifies each trading card in about half a second, with no button to press. A local engine checks whether the card has stopped moving and whether it’s a new card. Only a new card triggers a paid identification call: about 100 calls an hour instead of 54,000.

Why should a person choose your product over its competitors?

CardStream AI's answer

Most card recognition tools for live streams are either closed paid services or browser extensions that identify one card per click. Cardstream.ai is free and open source (Apache-2.0), works automatically on the live video, and needs no GPU. It never logs in to your marketplace accounts. Only one image crop per new card leaves your machine, and you can connect your own recogniser instead of Ximilar’s API.

Who are some of the biggest customers of your product?

CardStream AI's answer

Leave this empty. There are no named public users yet, and a made-up list would be easy to disprove.

How would you describe the primary audience of your product?

CardStream AI's answer

Card breakers and live sellers on Whatnot, Fanatics Live, eBay Live and TikTok Shop, and card shops streaming on Twitch or YouTube. It’s also for developers who want to add card recognition to their own streaming or scanning setup.

Which are the primary technologies used for building your product?

CardStream AI's answer

Python, ONNX Runtime, an RF-DETR segmentation model trained by Ximilar for finding the card, and an embedding model for the same-card check (Torch, ONNX or LiteRT backends). It also uses ffmpeg for RTSP, RTMP and SRT streams, a local browser interface, Docker, and Ximilar’s Collectibles Recognition API for identification.

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Alternatives to CardStream AI and Nullstack

When comparing CardStream AI and Nullstack, you can also consider the following products.