Accept header parse

Client

Content negotiation header breakdown.

Accept header q-values

Splits media types and optional q= weights from a raw Accept header line—useful when debugging content negotiation from curl -v. Processing runs in your browser—Toolcore does not need your paste for the core operation on this page.

Parses pasted headers only—no outbound HTTP from this page.

How to use

Paste or type in the main field, then read the output below. Use Load example when available, or open the page with ?q= / ?qb= so tickets and agents share the same input.

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Nearby workflows on Toolcore

  • Accept-Language q-values — Parse Accept-Language with quality values. Useful when the same trace needs a sibling header split.
  • MIME types & file extensions — Look up common MIME types from extensions (and vice versa)—filterable table, copy Content-Type—client-side. Useful when the same trace needs a sibling header split.
  • HTTP headers — Common request and response header fields—names, direction, and short summaries—filterable client-side. Useful when the same trace needs a sibling header split.
  • HTTP fetch test — Send GET/POST and other methods from your browser—see status and body; CORS limits apply. Useful when the same trace needs a sibling header split.

Common use cases

  • Accept 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.