Jsonade — JSON & JSONL Viewer
Extension Actions
- Live on Store
View JSON, JSONL and data embedded in any page: tree, search, copy path, repair broken JSON. No network, no accounts, offline.
Jsonade is a fast, private JSON viewer for developers, built to work anywhere JSON shows up — not just when you open a .json file.
View JSON from anywhere:
• Open the current tab as a JSON tree (raw .json / .jsonl responses).
• Scan any page for embedded JSON — hydration payloads (__NEXT_DATA__, __NUXT__, __remixContext, Apollo/Redux state), <script type="application/json"> blocks and JSON-LD.
• Paste JSON or JSONL straight into the popup.
• Right-click any selected text → "View selection in Jsonade".
• Keyboard shortcut: Alt+Shift+J to view the current tab.
Read and navigate:
• Virtualized tree that stays fast on large documents.
• Search keys and values; matches auto-expand into view.
• Copy the path to any node in three styles — JS accessor (a.b[0]), JSONPath ($.a.b[0]) or optional chaining (a?.b?.[0]).
• Copy any value as formatted JSON.
• Click through http(s) links in string values straight from the tree.
• JSONPath queries: keys, indexes, wildcards, recursive descent, slices and unions.
Understand and convert:
• Repair broken JSON — trailing commas, single quotes, unquoted keys, truncated tails — and see exactly what was fixed.
• JSONL / NDJSON support (logs, BigQuery/ClickHouse exports, LLM batches).
• Shape view: infer the structure of a document — types, keys, optional fields.
• Generate types from your JSON: TypeScript, Go (interface{} or any), Python dataclasses, Java, C#, with syntax highlighting.
• Export as YAML, CSV or JSON to the clipboard.
Private by design:
• No host permissions — Jsonade never reads or changes the pages you browse; it only acts on the current tab when you click it or press its shortcut.
• No network requests, no accounts, no API keys, no analytics. Everything stays in your browser.
• Works fully offline.