Trustworthy local JSON viewer. Zero host permissions, zero network. Collapsible tree, search, copy.
Users
3
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#309K
#248K among extensions
Version
1.0.0
updated 11 Jun 2026
Users
monthly, 4 months
Latest, 15 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 15 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About CleanJSON — Trustworthy, Zero-Network JSON Viewer
CleanJSON renders JSON responses (and local .json files) as a fast, collapsible, searchable tree view inside Chrome.
Its defining feature is **architectural trust**:
- Zero host permissions (manifest: "host_permissions": [])
- Zero network requests or remote code (enforced by CI trust scanner)
- All processing in ISOLATED world content script
- No analytics, no telemetry, no third-party scripts
You can literally inspect the source and manifest to verify we cannot exfiltrate your data.
Features:
• Lazy virtual tree for large files (50MB+ supported)
• Expand/Collapse all, individual nodes with child counts
• Search by key/value/all + JSONPath subset ($ .key ['key'] [n] ..key)
• Copy whole document or any subtree
• Toggle back to raw view (reversible)
• Dark / Light / Auto themes
• Error location reporting on parse failures (never blank screen)
• Persistent settings in local storage only
Category: Developer Tools
Language: English (primary); works worldwide
Perfect for API debugging, config inspection, and any situation where you need to trust the tool handling sensitive JSON.