
Requestly
modheader
Header Editor
RequestHeaders.com
VibeHeader
HTTP Header Live
Modify Header Value (HTTP Headers)
A local-first ModHeader alternative: rewrite HTTP request & response headers via Chrome's native declarativeNetRequest. No backend, no account, no telemetry.
Textfix
Convert Case
YouText – Online Text Tool
TextWizHub
FreeTextUtils
WordCounter.net
Word Counter
TextUtility provides free online text utilities like word counter, case converter, password generator, HTML encode decode, text cleaner, and more.

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| Website | headerflex.app | textutility.online |
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Instantly convert text to UPPERCASE, lowercase, Title Case, sentence case, and more - free, fast, and no sign-up required.
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