JSON Viewer & Formatter — ClearJSON EN

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.

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✨ Why Switch to ClearJSON?
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• 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.

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🆓 Free Features (Forever)
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• 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

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💰 Pro ($2.99/month — Cancel Anytime)
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• 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

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🔓 How to Upgrade
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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.

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🛡️ Permissions Explained
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• 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 your browser
• 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.