BUILT FOR DEVELOPERS & QA ENGINEERS
Inspect, search, export and clear website storage with ease. Modify HTTP request and response headers, manage testing profiles and debug browser data — all from one powerful Chrome extension.
About the extension
01 / OVERVIEW
Websites persist information in cookies, Local Storage, Session Storage, IndexedDB and Cache Storage. Bring accessible data into one convenient interface, and configure request and response headers without changing application code.
02 / THE TOOLKIT
Inspect application state, make precise changes and share a useful snapshot.
Browse Local Storage, Session Storage, Cookies, IndexedDB and Cache Storage in structured tables, including accessible third-party iframe origins. Decode supported URL-encoded, double-encoded, Base64 and JSON values; switch to raw values and expand one supported category at a time.
Select individual Local Storage, Session Storage and Cookie entries or all eligible visible rows. Selections persist across searches and categories. Review deletion before the inspector refreshes; cookies with ambiguous scopes cannot be selected for deletion.
Add, replace or remove request and response headers. Filter by URL and resource type, toggle individual rules, and pause modifications. Save multiple profiles, apply one at a time, and import or export profiles as JSON.
Search keys and values across inspected categories. Matching text is highlighted, counts appear by type and origin, and categories without matches are hidden.
Create Local Storage, Session Storage and Cookie entries. Set cookie path and expiry, validate your input, and see the inspector refresh after saving.
Choose Browser Cache, Cache Storage, Local Storage, Session Storage, IndexedDB, Cookies, Service Workers or File Systems. Your selected options are remembered between sessions.
Export selected categories with Type, Origin, Key and Value columns. Filenames include the hostname and date, making storage snapshots easy to share for debugging.
Open Inspector, Selective Clear and Headers alongside your page from the context menu. Refresh inspection context when navigating or switching tabs, or keep using the popup.
Choose a consistent light or dark appearance across extension tools. Your theme preference is saved automatically.
03 / GET STARTED
Add Storage Lens to your Chrome workflow in four steps.
Use Add to Chrome to open the official Storage Lens listing.
Click Add to Chrome, review the requested permissions and confirm installation.
Open Chrome’s Extensions menu and pin Storage Lens to your toolbar.
Open a supported website and click the extension icon to inspect storage or configure headers.
04 / FIELD GUIDE
Choose a task to see how it works.
05 / HTTP HEADERS
Configure request and response header rules for matching URLs and resource types.
Certain headers are restricted by Chrome. Modifications depend on browser permissions and declarative network request capabilities.
06 / WHO IT’S FOR
Debug browser storage, inspect application state and test HTTP headers.
Validate feature flags, authentication scenarios and environment-specific behavior.
Understand and manage accessible website storage.
Examine accessible cookie data and experiment with permitted header configurations.
07 / PRIVACY & SECURITY
No inspected storage or saved profiles are sent to developer-operated servers. No analytics or tracking services are included.
Profiles and preferences are saved locally in your browser.
Enabled request-header rules send configured values to matching websites through normal browser requests. Only enable rules for the websites you intend to test.
CSV storage exports and JSON profile exports may contain sensitive information, including credentials. You control where exported files are stored and shared.
Storage operations use Chrome’s scripting API. Access depends on browser permissions and website context. The cookie editor uses document.cookie and cannot create HttpOnly cookies.
08 / PERMISSIONS
Each permission supports a specific part of the extension.
Clear supported storage and browser cache.
Identify the active page and respond to tab navigation.
Inspect and modify accessible website storage.
Save profiles and settings locally.
Apply configured header modification rules.
Identify cookie scopes and delete eligible cookies.
Provide the browser side panel interface.
Add the right-click side panel action.
Access permitted websites for storage inspection and header modifications.
09 / BUILT WITH
Designed around Chrome’s extension platform and the storage your websites already use.
10 / FAQ
Check the official Chrome Web Store listing for current availability and pricing.
Inspected storage and saved profiles are not sent to developer-operated servers. Enabled request-header rules send your configured values to matching websites through normal browser requests.
Yes. The Inspector supports Local Storage, Session Storage, Cookies, IndexedDB and Cache Storage that are accessible in the current page context.
Yes, for eligible Local Storage, Session Storage and Cookie entries. You review a confirmation dialog first. Cookies with ambiguous scopes are excluded from selected deletion.
Yes. Set or remove headers for matching URLs and resource types, within Chrome’s restrictions and granted permissions.
Yes. Profiles and rules are saved locally. You can also import and export profiles as JSON.
Yes. Export selected categories to CSV with Type, Origin, Key and Value columns.
Yes. The extension supports light and dark themes and remembers your choice.
Yes. Use the context menu action to open the side panel alongside your current page.
Chrome protects some browser data and limits network modifications. The cookie editor cannot create HttpOnly cookies, ambiguous cookie scopes prevent selected deletion, and header changes depend on declarative network request capabilities and permissions.
11 / SUPPORT THE PROJECT
Storage Lens is built to make browser debugging and storage management simpler. If it helps your workflow, consider supporting its continued development and improvement.
YOUR NEXT DEBUGGING SESSION STARTS HERE
Inspect storage, manage browser data and test HTTP headers — all from one convenient Chrome extension.