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Blockly is an open-source web-based visual programming language tool developed by Google. The language uses interlocking graphical blocks to represent code concepts like variables, logic and loops. These blocks can be dragged and dropped around, rearranged and connected to create programs without typing any code in a traditional text-based environment. Blockly has been used in several educational platforms to teach kids about programming before diving into text-based languages like Python or JavaScript.

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