Online Interactive Parser

In plain words

Online Interactive Parser is a web-based tool for parsing and analyzing text or code. Launched in 2021, it serves developers, students, and anyone needing to understand language structure or syntax. The tool provides interactive visualization, allowing users to input content and see how it breaks down into components. It runs directly in the browser, requiring no installation or setup.

written from the facts on this page · September 2026

From the sources

This was created for an online workshop on parsing which was held on and was recorded . The source code can be found here . The code for showing the syntax tree is based on Syntactic Tree Viewer by Christos Christodoulopoulos , which makes use of d3.js and itself is inspired by D3.js Drag and Drop Zoomable Tree by Rob Schmuecker . A simular approacht, with a more advanced editor (with syntax-colour) is AGL Editor Demo . The following grammar parses the same input as the above, but now it uses two extra non-terminal and two additional production rule for those non-terminals: root : first rest . first : int . rest : ident string . But this does affect the abstract syntax tree, which now will…from fransfaase.github.io

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