jsoneditor: JavaScript JSON Editor with Tree, Code & Text Modes
Add JSON editing to web apps with tree, code, text, form, view, and preview modes plus validation, search, and formatting.
JavaScript & CSS JSON
Minimal JSON Data Formatter – JSONViewer
A super lightweight, pure JavaScript JSON formatter / viewer which helps render JSON objects just like a collapsible tree view.
Render and Edit JSON as an Interactive Flowchart – SenangWebs Unfold
A vanilla JS JSON viewer and editor that renders JSON as an interactive flowchart graph with in-place editing, two-way sync, and pan/zoom.
Lightweight JS JSON Editor for Web – NanoJSON
A pure JavaScript library for embedding a lightweight, interactive JSON editor directly into your web applications.
Render JSON Data As A Tree View – json-view
Yet another JSON viewer library that renders your JSON data as a collapsible and expandable tree structure for better readability.
Performant Large JSON Viewer In Vanilla JavaScript
The Big JSON Viewer enables you to efficiently renders large JSON data in a collapsible, beautify tree view.
Lossless JSON Pretty-Printer for JavaScript – fast-json-format
Pretty-prints JSON strings without parsing, preserving BigInt literals and decimal precision while handling malformed input gracefully.
Build Searchable Data Views from JSON Data with SenangWebs Index
A pure JavaScript library for transforming JSON into searchable, paginated list views and data tables. Perfect for product catalogs, user tables, and API dashboards.
Collapsible JSON Viewer with Syntax highlighting and Line numbers – TreeJSON
A zero-dependency JavaScript library that renders JSON data into an interactive, collapsible tree with syntax highlighting.
Flatten & Spread JSON Arrays/Objects with json-spread Library
Use the json-spread JavaScript library to flatten nested JSON and spread array elements into separate objects, ideal for CSV/tabular data conversion.