stock-screener

stock-screener is an open-source stock screening platform designed for global investors, with confirmed support for 12 markets including US, HK, China A-shares, Japan, and Korea. It integrates over 80 fundamental and technical filters, an AI chatbot, and a theme discovery engine, allowing users to pinpoint stocks matching custom criteria or to explore market themes via AI conversations. The main advantages are its broad market coverage and rich screening capabilities, all delivered as open-source software that users can customize freely. The AI chatbot and theme discovery features lower the barrier for investors who want to combine quantitative thinking with market analysis. On the downside, being open-source means deployment and maintenance require technical skills, and there is no managed cloud service available out of the box. Evidence about community health, update frequency, data latency, and accuracy is currently limited, so stability cannot be guaranteed. The user interface may also be less polished compared to commercial alternatives, demanding a learning investment. The tool itself is free to use, but users need to cover hosting and potential data source costs.