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|Original author(s)||Neil Fraser, Quynh Neutron, Ellen Spertus, Mark Friedman|
|Initial release||May 2012|
1.20190215.0 / 15 February 2019
1.20190419.0 / 19 April 2019
|Operating system||Android, iOS|
|Available in||50 languages|
Blockly development began in summer 2011. The first public release was in May 2012 at Maker Faire. Blockly was originally designed as a replacement for OpenBlocks in App Inventor. Neil Fraser began the project with Quynh Neutron, Ellen Spertus, and Mark Friedman as contributors.
The default graphical user interface (GUI) of the Blockly editor consists of a toolbox, which holds available blocks, and where a user can select blocks, and a workspace, where a user can drag and drop and rearrange blocks. The workspace also includes, by default, zoom icons, and a trashcan to delete blocks. The editor can be modified easily to customise and limit the available editing features and blocks.
Blockly is used in several notable projects, including:
- MIT's App Inventor, to create applications for Android.
- Blockly Games, a set of educational games that teach programming concepts such as loops and conditionals.
- Code.org, to teach introductory programing to millions of students in their Hour of Code program.
- RoboBlockly, a web-based robot simulation environment for learning coding and math.
- Wonder Workshop, to control their Dot and Dash educational robots.
- Web based using Scalable Vector Graphics (SVG), no Flash
- Support of major web browsers including: Chrome, Firefox, Safari, Opera, Internet Explorer (IE)
- Mobile support on Android and iOS
- Support for many programmatic constructs including variables, functions, arrays
- Minimal type checking supported, designed for weakly typed languages
- Easy to extend with custom blocks. Use the Block Factory to make new blocks
- Clean code generation
- Step-by-step code execution for tracing and debugging code
- Localised into 50+ languages
- Support for left-to-right and right-to-left languages
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- "Google's Blockly Teaches You to Create Apps". NBC Bay Area.
- "Google Groups". Groups.google.com. Retrieved 16 January 2018.
- Black, Lucy (12 June 2012). "Google Blockly – A Graphical Language with a Difference". I-programmer. Retrieved 3 July 2019.
- "MIT App Inventor 2". MIT.
- "Google Introduces Kids to Coding Through Blockly Games Project". EWeek.
- "Blockly: Maze Archives – BrainPOP Educators". BrainPop.
- "Translate Code.org". Code.org.
- "Wonder Workshop Blockly". Wonder Workshop. Retrieved 3 July 2019.
- "Blockly Demo". Blockly-demo.appspot.com. Retrieved 16 January 2018.
- "Blockly Demo: JS Interpreter". Blockly-demo.appspot.com. Retrieved 16 January 2018.
- "Localisation statistics for the Blockly core module". Translatewiki.net. Retrieved 16 January 2018.
- "Blockly Demo: RTL". Blockly-demo.appspot.com. Retrieved 16 January 2018.