JSON Workspace One payload. Understand it. Transform it. Leave.

Local-only JSON workbench for validation, structure analysis, visual inspection, and JSON-derived outputs (TypeScript, Zod, JSON Schema, YAML, CSV). No uploads. No auth. No tracking.

Canonical /tools/json Scope JSON only (TS/Zod are outputs) Runtime Client-side only Detecting browser capabilities...

Keyboard First

Format JSONMod+Shift+F
Minify JSONMod+Shift+M
Sort KeysMod+Shift+K
Copy SourceMod+Shift+C

Source

Paste strict JSON. Everything else on this page derives from this one input.

Validation

Tree View

Collapsible structural view. Automatically capped for large payloads.

Structure Visuals

Depth distribution and key weight concentration from the same source.

Depth Distribution

Key Weight Distribution

Transform Studio

JSON-derived outputs only. Same source, no separate converter pages.

Privacy Everything runs in your browser. Input JSON only (v1) with TS/Zod detection hints. Large Payloads Tree and charts degrade gracefully.