Know what this browser holds

LocalStorage Inspector (read-only)

List saved NoCharge game and preference key names with their documented purpose, owner, and kind. Values and analytics consent are excluded; removal stays on the Privacy page.

Category: Accessibility

Bottom line: The inspector lists NoCharge keys present in this browser and explains what each one is for. It never writes or deletes anything: clearing data is a deliberate action on the Privacy page, and analytics consent is never shown or touched here.

On-device only

What this browser holds

Reading localStorage; nothing is sent anywhere. Unknown keys under nocharge: appear in a separate list because the catalog may have changed since this page was built.

Clear on Privacy

Press Scan to read the keys for this browser.

How it works

Scan this browser enumerates localStorage key names on this origin, keeps game and preference keys starting with nocharge:, and matches them to the storage documentation bundled with the page. The analytics-consent key is excluded. Known keys receive an owner, category, and purpose; unmatched names are labeled unlisted.

Worked example

If this browser has nocharge:2048:best-tile and an unrelated _ga key, the scan lists one NoCharge game key. Its purpose explains that it stores the largest tile reached. The scan does not read the stored tile value or interpret it as a score.

A key is counted once even when its stored value contains a list or JSON object. The count describes storage entries, not games played, puzzle completions, or bytes used. Results are sorted by key name so a repeated scan is easy to compare.

What it cannot do

  • The scan sees this origin in this browser profile, not another device, private session, or domain.
  • It does not read key values, cookies, IndexedDB, or Google consent records. nocharge:consent is not included.
  • It does not validate, repair, export, or delete saved games. Use Privacy or browser site-data controls to remove data.
  • A known key name does not prove its value is valid, and an unlisted name does not by itself prove a problem. Storage restrictions can prevent scanning entirely.

FAQ

Is this tool safe to use?

It is strictly read-only. It lists game and preference key names under the nocharge: prefix, excluding analytics consent. It never reads stored values, writes, edits, or deletes anything. Removing data happens only through Clear game data on Privacy or your browser's own controls.

What is the nocharge: prefix?

Every NoCharge game, preference, and match record uses the nocharge: prefix so storage stays separable from other sites and from Google consent data. The tool reports game and preference names with that prefix but excludes nocharge:consent.

Why do I see no keys?

Nothing has been saved by NoCharge in this browser yet, or site data was cleared. Play one game — saving a score or preference writes a key — and reopen this page.

Does it upload my storage?

No. The scan runs in this page and never sends anything to NoCharge or any server.

Embed this tool

<iframe src="https://nocharge.net/tools/storage-inspector/" width="400" height="620" title="NoCharge read-only localStorage inspector"></iframe>
<p>Source: <a href="https://nocharge.net/tools/storage-inspector/">NoCharge tool</a></p>

Next action

Try it with a game