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ModHeader - Modify HTTP headers
Free browser extension to modify HTTP request and response headers. No sign-up. Works on Chrome, Firefox, and Edge.
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96 % |
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Headrule – Modify HTTP request and response headers in Chrome (ModHeader alternative)
Headrule is a lightweight Chrome extension to add, set, or remove HTTP request and response headers per URL. No accounts, no tracking, no remote code. A ModH...
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91 % |
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HeaderForge: Chrome & Firefox extension for editing HTTP headers
Free Chrome & Firefox extension for adding, replacing, and removing HTTP headers with URL rules. Runs locally, no telemetry. Open source, MIT.
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91 % |
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HeaderSnap — Free ModHeader Alternative for Chrome
Edit HTTP request headers in Chrome. Privacy-first, no ads, 100% free — no account required. Switch from ModHeader in one click.
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87 % |
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Modify HTTP Headers & Cookies | Header Override
Open-source Chrome, Firefox, and Edge extension to modify HTTP request and response headers, cookies, and local profiles for API debugging.
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87 % |
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MockHeader — Modify HTTP Request & Response Headers
A free, open-source Chrome extension for modifying HTTP request and response headers locally. No account, telemetry, or backend.
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87 % |
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HeaderFlex — HTTP Header Editor & ModHeader Alternative
A local-first ModHeader alternative: rewrite HTTP request & response headers via Chrome's native declarativeNetRequest. No backend, no account, no telemetry.
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85 % |
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HeaderFlex — HTTP Header Editor & ModHeader Alternative
A local-first ModHeader alternative: rewrite HTTP request & response headers via Chrome's native declarativeNetRequest. No backend, no account, no telemetry.
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85 % |
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LanternKit — Developer Tools
A collection of neat developer tools, running on the edge.
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83 % |
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Modify Chrome Request Headers Locally | RequestHeaders
Add and toggle custom HTTP request headers with profiles using RequestHeaders, a private local-first Manifest V3 Chrome extension.
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82 % |
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StatusMock — Mock HTTP Status Codes & Responses
A focused Chrome extension for replacing Fetch and XHR response status codes and bodies with local URL rules.
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82 % |
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Hemingweight - Describe it. Watch it get built.
Local-first IDE powered by AI. Bring your own model: Claude, Mistral, or OpenAI. Your code, your keys, your machine. No Chrome extension required.
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81 % |
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THorn HTTP — Intercept and modify HTTP requests in your browser
Free, open-source browser extension to redirect URLs, change headers, mock API responses, inject scripts and delay requests. Local by default, no account.
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81 % |
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xhaus.com: HTTP header check
Use this page to check the HTTP headers transmitted by your browser
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80 % |
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ShowHeaders – See What Your Browser Sends
ShowHeaders - Instantly see exactly which HTTP headers your browser sends. Free, real-time header inspection tool with comprehensive documentation and privac...
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80 % |
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headerly
Configure browser network rules with reusable profiles.
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80 % |
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NewTab.ad | Custom new tab for Chrome and Firefox
NewTab.ad gives Chrome and Firefox users a beautiful, configurable start page with custom search and quick links.
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80 % |
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headerchecker.com > checks your headers. Simple, eh?
Paste a URL, get the HTTP status, every redirect hop, response headers, caching and security headers. No tracking, no ads, no cookies.
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79 % |
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HTTP Header Checker | httpheader.com
Check and lint any URL's HTTP response. Every header value, status code and cache directive validated and explained, with the redirect target shown and never...
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79 % |
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79 % |
Detected social media networks