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Redirector vs Header Editor: catalog facts
Redirector	Header Editor
Free Free to install from each browser's add-on store.	Free Free and open source.
Browser extension	Browser extension
Wildcard and regular expression patterns with capture substitution Same add-on for Firefox, Chrome, Edge and Opera	Edits request and response headers Can modify response bodies
Writing regular expression rules takes some practice The project page was last updated in 2020	Rule writing assumes some knowledge of HTTP
Browser extension	Browser extension
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.