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 ## Software&Tools
 
+- [GitHub Contribution Chart Generator](https://github-contributions.vercel.app/) - Generates an image of all your GitHub contributions since you have signed up, so you can use it in social media.
 - [GeoGebra ](https://www.geogebra.org/) - GeoGebra 是一款适用于各级教育的动态数学软件, 它将几何, 代数, 表格, 绘图, 统计和微积分整合到一个引擎中. 
 - [sumatrapdfreader](https://www.sumatrapdfreader.org/free-pdf-reader) - PDF, eBook (epub, mobi), comic book (cbz/cbr), DjVu, XPS, CHM, image viewer for Windows.
 Small, fast, customizable, free.