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JSON Viewer

Paste JSON, browse it as a tree.
DeveloperFree

Stop squinting at minified blobs.

JSON Viewer parses your JSON with the browser's native engine and renders it as a collapsible tree — objects and arrays fold with a click, values are color-coded by type (string, number, boolean, null), and item counts show at every level. A Format button pretty-prints the raw input, and invalid JSON is flagged instantly with the parser's error message. Everything stays in the widget.

⚙️ Settings & Customization

  • Theme
  • Language
  • Size
  • Transparent background
  • 🎨 Accent Color

Changes apply live — the embed link and preview update instantly.

📌 How to embed in Notion

  1. Copy the embed link from the sidebar on the right.
  2. Open the Notion page you want the widget on and type /embed.
  3. Paste the link into the embed dialog and press Embed link.
  4. Drag the embed's bottom edge to resize it to taste.
🆕 What's new in v1.0
  • ✦ Collapsible tree with per-level item counts
  • ✦ Type-colored values + one-click Format
  • ✦ Instant validity feedback with parser errors
  • ✦ 21 UI languages · fully offline

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CategoryDeveloper
CompatibilityNotion · Web
Size~14 KB
ThemeLight · Dark
Version1.0.0
UpdatedJuly 2026
Languages21 languages