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Description
Does your browser struggle to open large JSON files? Are you tired of switching between tabs to compare data?
Meet Lens, the next-generation JSON Viewer designed for modern developers. Lens replaces raw data with a stunning, interactive, and high-performance data explorer. Whether you are debugging an API, analyzing 10MB+ datasets, or comparing production vs. staging responses, Lens makes it effortless.
π EXCLUSIVE: MULTI-FILE SYNC & COMPARE Most viewers only handle one file at a time. Lens allows you to load multiple JSON files side-by-side in a single window. β’ Synchronized Navigation: Expanding a nested key (like "user.address") in one file automatically expands it in ALL open files. β’ Contextual Comparison: Instantly spot differences in structure between environments without manually clicking through deep nesting on every file.
β‘ UNMATCHED PERFORMANCE Lens includes a dedicated "Performance Mode" with virtual scrolling logic. β’ Zero Lag: Handles massive files (10MB+) and heavy arrays without freezing your browser. β’ Smart Loading: Automatically detects file size and optimizes rendering to ensure the viewer loads instantly.
π οΈ DEVELOPER TOOLKIT Lens is packed with tools to speed up your workflow: β’ TypeScript Generator: One-click "TS" button generates full TypeScript Interfaces for your data. β’ Breadcrumbs: Hover over any item to see its exact path (e.g., "response.users[0].id") and click to jump there. β’ Table View: Transform arrays of objects into a sortable, filterable spreadsheet grid. β’ Graphing: Automatically detects URLs and renders them as clickable links.
π ADVANCED SEARCH Stop using basic Ctrl+F. Lens offers a powerful search engine: β’ Key:Value Logic: Search specifically for "status:200" or "id:123". β’ Boolean Operators: Use "+" to find items matching multiple terms (e.g., "+error +fatal"). β’ Scoped Search: Limit results to just Keys, just Values, or "Filter Results" to hide everything that doesn't match.
π¨ BEAUTIFUL & CUSTOMIZABLE β’ 12 Pro Themes: Includes Midnight Blue, Monokai, GitHub Light, Solarized, and more. β’ 9 Coding Fonts: Customize your view with Fira Code, JetBrains Mono, Inter, and others. β’ Glassmorphism UI: A modern, distraction-free interface with sticky headers.
π FLEXIBLE INPUTS β’ Auto-detects JSON on web pages. β’ Drag & drop local .json files. β’ Paste text directly from the clipboard. β’ Import from URL.
π PRIVACY FOCUSED Lens works entirely offline within your browser. Your data is parsed locally and is never sent to any server or third party.
CONTROLS SHORTCUTS: β’ "f" : Focus Search β’ "e" : Expand All β’ "c" : Collapse All β’ "Ctrl + Click" : Recursive Expand/Collapse β’ "?" : Open Help Menu
Upgrade your workflow with Lens today.
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Permissions (2)
Permissions
clipboardReadβΉ Can read from your clipboard storageβΉ Can store data locally in your browser
Details
| Version | 3.10.5 |
| Updated | Feb 25, 2026 |
| Size | 103KiB |
| First Seen | Mar 25, 2026 |
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