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Cookie string auditor

Parse Cookie or Set-Cookie strings. Flag missing Secure/HttpOnly/SameSite and oversize values.

No uploads. No account. Free to use.

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Under the Hood: The Architecture of Cookie string auditor

Cookie headers are session material. Audit a dump, then redact it.

A cookie auditor splits name=value and flags attributes. It does not talk to your origin. There is no origin fetch and no upload route. Inputs are strings, JSON, or File objects decoded with the platform APIs in this tab.

Memory Allocation & Browser Threading Mechanics

Work stays on the main thread because typical pastes are kilobytes, not gigabytes. useMemo or an explicit button recomputes a derived string. Image tools downsample onto a canvas so pixel loops stay bounded. Crypto uses SubtleCrypto, which returns ArrayBuffers the engine can recycle after you copy the result.

Algorithmic Deep-Dive: Code Snippet & Logical Analysis

// cookie-string-auditor — parse input in the tab, emit a string, never fetch().

Treat the snippet as the contract: deterministic in, deterministic out. Invalid input should surface a string error, not a thrown render.

The Local Storage Sandbox & Volatile Data Pipelines

Default is React state only. Object URLs from canvases or downloads are revoked after click when the island uses URL.createObjectURL. There is no “recent jobs” IndexedDB. Close the tab to drop secrets (JWT HMAC keys, TOTP seeds, VAPID private JWK).

Verifying True Privacy: How to Audit Your Browser's Network Tab

F12 → Network → clear. Run the tool with a canary string such as TWA_CANARY_TOKEN. Filter Fetch/XHR. The canary must not appear in any request payload. Ads and analytics on the shell are unrelated to the island; they must not receive File bytes.

  • Files never leave your device
  • Runs entirely in your browser
  • No signup required
  • Free

What is Cookie string auditor?

A cookie auditor splits name=value and flags attributes. It does not talk to your origin.

How to use it

  1. Paste Cookie or Set-Cookie lines.
  2. See attributes.
  3. Copy a findings list.

When to use it

Cookie headers are session material. Audit a dump, then redact it.

Frequently asked questions

Are my files uploaded?

No. This tool runs in your browser. Files and text stay on your device and are not sent to our servers.

Does this use AI?

No. It is a deterministic utility. There is no model and no third-party processing of your data.

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