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Format & view JSON: syntax highlighting, collapsible tree, 10 themes, 500MB+. JWT decode, regex search, CSV/YAML export. 100% local. ClearJSON is the trustworthy JSON viewer you've been looking for — built after popular JSON formatters went rogue with ads and tracking. All processing happens on your device. Period. ━━━━━━━━━━━━━━━━━━━━━━ ✨ Why Switch to ClearJSON? ━━━━━━━━━━━━━━━━━━━━━━ • 100% Local — Every byte stays on your machine. Zero network requests. • Privacy First — No analytics, no tracking, no accounts, no ads. Not now, not ever. • Lightning Fast — Handles everything from tiny API responses to 500 MB data dumps with virtual scrolling (Pro). • Honest Pricing — $2.99/month or $19.99/year, cancel anytime. Covers 3 devices. ━━━━━━━━━━━━━━━━━━━━━━ 🆓 Free Features (Forever) ━━━━━━━━━━━━━━━━━━━━━━ • Auto-detect & format JSON, JSON-LD, JSON:API, and NDJSON • Collapsible tree view with indent guides and element counts • Syntax highlighting — strings, numbers, booleans, null, keys, punctuation • 10 built-in themes with automatic dark/light system-follow • Click-to-copy values • Right-click for JSONPath or subtree • Auto-detected clickable links • Hover-to-preview images (PNG/JPG/GIF/SVG/WebP) • Line numbers in raw view • Status bar — node count, max depth, file size, parse time • Keyboard shortcuts: [ collapse, ] expand, D theme, R raw, / search • Standalone viewer — paste, drag-and-drop, or load any JSON file • URL exclusion list (regex) — skip sites with built-in JSON rendering ━━━━━━━━━━━━━━━━━━━━━━ 💰 Pro ($2.99/month — Cancel Anytime) ━━━━━━━━━━━━━━━━━━━━━━ • Large file virtual scrolling — 500 MB JSON without freezing (Web Worker + streaming parser) • JWT auto-decode — detect eyJ... tokens, inline display header + payload, highlight expiry • Advanced search — regex with match navigation and full-document highlighting • Multi-format export — CSV, TSV, YAML, TypeScript type definitions (recursive inference) • 20 premium themes — Monokai, Dracula, Nord, One Dark, Solarized, Catppuccin, GitHub, Tokyo Night, Gruvbox, and more • Custom keyboard shortcuts — remap all 6 shortcuts to your preference • Coming soon: JSON diff · JSONPath queries · YAML/XML conversion ━━━━━━━━━━━━━━━━━━━━━━ 🔓 How to Upgrade ━━━━━━━━━━━━━━━━━━━━━━ 1. Click the Pro badge in the toolbar (or visit wayknow.tech/clearjson.html) 2. Complete checkout via Creem ($2.99/month or $19.99/year) — your license key (CLJ-XXXX-XXXX-XXXX) arrives by email instantly 3. Paste the key in Settings → Pro → Activate. Works offline after first activation. ━━━━━━━━━━━━━━━━━━━━━━ 🛡️ Permissions Explained ━━━━━━━━━━━━━━━━━━━━━━ • storage — Save your theme, settings, and license • activeTab — Format JSON in the current tab only when you interact with the extension • Host permission (file://) — Format local JSON files you open in Chrome • Content scripts on JSON URLs — Detect and format JSON pages; page content is never read or transmitted ClearJSON does not, and will never, make a network request for free users. The Pro license verification is the ONLY network call, and only when activating or checking a key.