JSON Surgeon — Format, Diff, Convert & Query JSON
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Description
The power-user JSON tool. Auto-format in tabs, diff side-by-side, convert to YAML/TypeScript/CSV, query with JSONPath. Free + Pro. JSON Surgeon is the power-user JSON toolkit built for developers. Works automatically on any JSON URL - no copy-pasting required. ─── FREE FEATURES ─────────────────────── ✦ Auto-format JSON browser tabs - visit any JSON URL and it's instantly rendered as a beautiful, interactive tree ✦ Collapsible tree view with syntax highlighting ✦ Copy any value or key path with one click ✦ Minify & format JSON in the popup ✦ Dark / light / system theme ✦ Right-click → Format selected JSON on any page ─── PRO FEATURES ($2.99/mo or $9.99/yr) ─ ✦ Side-by-side JSON Diff - spot exactly what changed ✦ TypeScript Interface Generator - paste JSON, get types instantly ✦ Format Converter - convert JSON ↔ YAML, TOML, CSV ✦ JSONPath Query Builder - filter and extract with live results ✦ JSON Schema Validator - validate against any schema ✦ Persistent Scratchpad - multi-tab workspace that survives browser restarts ─── PRIVACY ───────────────────────────── All processing happens locally in your browser. Your JSON never leaves your machine. No tracking. No ads. ─── PERFECT FOR ───────────────────────── • API developers inspecting responses • Frontend engineers debugging payloads • DevOps / backend engineers reviewing configs • Anyone who works with JSON daily Built by a principal software engineer. Actively maintained.