Every JSON tool, in one place

One editor, one engine, no account — every tool below is a different door into the same free, private, entirely-in-your-browser JSON editor. Pick the one that matches what you're doing right now.

Convert

• JSON to CSV — turn a JSON array of objects into a CSV file in one click.
• CSV to JSON — the reverse: turn a CSV file into a JSON array of objects.
• JSON to Excel — turn a JSON array of objects into a real .xlsx spreadsheet.
• JSON to YAML — convert config files and API payloads between JSON and YAML, either direction.

Inspect

• JSON Formatter — paste minified or messy JSON and format it instantly.
• JWT Decoder — decode a JWT's header and payload, with every standard claim explained in plain English.
• NDJSON Viewer — paste newline-delimited JSON (log dumps, streaming captures) and convert it to a real array.
• JSON Path Finder — click any value in a JSON tree and get its path as jq, JSONPath, JavaScript, or JSON Pointer.
• JSON Tree Viewer — read any JSON document as a collapsible tree and edit values in place.
• JSON Graph Visualizer — draw a JSON document as a node-link diagram and export it as PNG, JPEG, or SVG.
• HAR Viewer — browse a HAR (network capture), drill into JSON bodies as real JSON, and diff two captures to see exactly what changed.

Query

• jq Playground — run real jq 1.8.2 queries against your JSON, entirely in your browser.
• JSONPath Evaluator — evaluate JSONPath expressions against your JSON, entirely in your browser.
• JSON Join — open several JSON files, discover how they link, and query across them with SQL (heads up: ~34 MB engine download).

Generate

• JSON to TypeScript — generate a TypeScript interface (also Go, Rust) from a JSON document.
• JSON to Python — generate standard-library Python dataclasses from a JSON document.
• JSON to Java — generate Java records (the modern POJO) from a JSON document.
• JSON to C# — generate C# records ready for System.Text.Json from a JSON document.
• JSON to Kotlin — generate kotlinx.serialization-ready Kotlin data classes from a JSON document.
• JSON Schema Generator — infer a JSON Schema from a document, then validate any document against it.

Compare

• JSON Diff — a semantic diff between two JSON documents; key reordering is never flagged as a change.

Open the full editor →
Every tool above is one path into this same editor — format, tree/table/graph views, sort, and every conversion and generator are always available from there, whichever page you started on.