Browse every key and value this site has stored in your browser's localStorage, edit or delete entries inline, and see a byte-size estimate for each one.
| Key | Value | Size |
|---|
Browsers isolate storage per origin — this can only ever show and manage localStorage belonging to pandatoolbox.com.
Click any value to edit it in place, or delete a single key without touching the rest.
See an estimated byte size per key and a running total against the quota.
This tool can only ever see pandatoolbox.com's own storage — never any other site's.
Manage this site's stored data directly, without opening DevTools.
localStorage lets a website save small amounts of text data directly in your browser, persisting across visits until it is cleared. Every browser enforces the same-origin policy for it: a page can only read and write the storage that belongs to its own scheme, host and port. That is a deliberate security boundary, not a limitation of this tool — no page on any website, including this one, can reach into another site's localStorage.
Every page under pandatoolbox.com shares the same localStorage, which is why keys from other tools may appear here.
localStorage only stores strings. Structured data is typically saved as a JSON string and parsed back on read.
Most browsers cap localStorage around 5 to 10MB per origin, which is why a byte estimate is shown for every entry.
Unlike a session, localStorage persists until a page removes it, the user clears site data, or storage is reset manually.
Common questions about scope and safety.
No. Browsers isolate localStorage per origin as a core security boundary, so a page can only ever read and write the storage that belongs to its own website. This tool can only show and manage localStorage that belongs to pandatoolbox.com, exactly like every other website's page can only see its own.
localStorage is shared across every page on the same origin, not just this one. If you have used other tools on pandatoolbox.com that save your preferences or progress, their keys will also appear here since they all share the same pandatoolbox.com storage.
It is an estimate based on the length of the key and value strings as UTF-16, which is how most browsers actually count characters toward the localStorage quota. It will not exactly match every browser's internal accounting, but it is close enough to judge relative size.
Nothing happens on the first click except a confirmation prompt appearing in its place. You must click the confirm button a second time to actually remove every key, which is designed to prevent an accidental wipe.
No. Every read, edit, add and delete happens directly against your browser's localStorage API. My Panda Toolbox never receives this data.