Upgrade header parse

Client

List protocol upgrade tokens.

About Upgrade header parse

List protocol upgrade tokens. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

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Nearby workflows on Toolcore

  • cURL command parser — Parse curl CLI snippets into method, URL, headers, and body—local best-effort helper for API debugging. when headers, identifiers, or reference tables need a sibling check.
  • MIME types & file extensions — Look up common MIME types from extensions (and vice versa)—filterable table, copy Content-Type—client-side. when headers, identifiers, or reference tables need a sibling check.
  • User-Agent parser — Browser, OS, and device from a UA string—useful for logs and debugging. when headers, identifiers, or reference tables need a sibling check.
  • Basic Auth header — Build Authorization Basic and curl -u from username and password—UTF-8 Base64 in your browser. when headers, identifiers, or reference tables need a sibling check.

Common use cases

  • Upgrade header parse for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.