Jsonade — JSON & JSONL Viewer

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.