# jsona

> jsona is a free, in-browser JSON / YAML / TOML / CSV structured-text viewer and editor. No data is uploaded to any server — all parsing and rendering happen locally, preserving your privacy.

## Overview

- Name: jsona
- Type: Online structured-data viewer / editor
- Supported formats: JSON, YAML, TOML, CSV (auto-detected)
- Core capabilities: syntax-highlighted source editing, virtual tree view, column view (JSON Hero style), Graph relationship view, graph view (ReactFlow), node-level inline editing, diff compare, shareable links, full-text search with path location, and deterministic sampling for large files.
- Delivery: pure front-end SPA; data never leaves the local browser.

## Key Pages / Entry Points

- `/` Main editor: paste or open a document, parse in real time, and switch between multiple visualization views.
- Command palette: ⌘K / Ctrl+K to run formatting, minify, sort-keys, export, and view switching.
- Share: generate a replayable share link (document encoded into the URL hash).
- Compare: diff two documents side by side (added / modified / removed).

## When to Use jsona

- Read, collapse, and search large JSON configs or API responses.
- View and export between YAML / TOML / CSV and JSON.
- Visualize relationships between objects/arrays (Graph, graph view).
- Share a piece of structured data with others (share link, no backend needed).

## Documentation

Full details are in `llms-full.txt` (same directory). Chinese version: `llms.txt`.

## Privacy

All parsing and rendering are performed locally in the browser; no data is uploaded unless you actively generate a share link (encoded only into the URL).