X-Forwarded-For parse

Client

Debug reverse-proxy client IP chains.

About X-Forwarded-For parse

Split client IP chain from header value. 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.

Client: 203.0.113.1
Proxy 1: 198.51.100.2

Nearby workflows on Toolcore

  • HTTP fetch test — Send GET/POST and other methods from your browser—see status and body; CORS limits apply. when headers, identifiers, or reference tables need a sibling check.
  • X-Real-IP parse — Extract IP from X-Real-IP header. when headers, identifiers, or reference tables need a sibling check.
  • 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.
  • CIDR calculator (IPv4 & IPv6) — IPv4 or IPv6 CIDR: network, range, mask or prefix size—computed locally in your browser. when headers, identifiers, or reference tables need a sibling check.

Common use cases

  • X-Forwarded-For 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.