Local Processing
DevToolsBox processes payloads locally in your browser.
We do not upload, store, sell, or track your JSON, JWTs, schemas, API responses, logs, or text inputs.
Permissions
The extension requests only three permissions, each used locally:
- storage — saves your preferences (theme, indent, default tab, accent color, history, and JSON page auto-detection) with
chrome.storage.local. - contextMenus — adds the "Format with DevToolsBox" right-click action.
- sidePanel — opens the tool in Chrome's side panel.
Content Script & Page Detection
A content script lets you right-click selected text and choose Format with DevToolsBox. When used this way, it reads only your current selection or nearby text from text fields, code blocks, or JSON-looking content needed to complete that action.
If Auto-detect JSON pages is enabled in Settings, the content script can detect likely JSON response pages (JSON content types or single-code-block pages) and show a local "JSON detected" helper. Detection runs entirely in your browser, sends nothing anywhere, and can be turned off at any time.
History
Local history, if enabled, is stored only in your browser storage.
Sensitive-looking inputs are skipped from history.
Accounts
No account is required for core tools.
Beta Signup
The beta signup is currently a static mailto form. We are not adding analytics or backend tracking on this site yet.
Contact
Questions about privacy can be sent to [email protected].
Last updated: June 2026