Requestly
modheader
VibeHeader
Header Override
HeaderFlex.app
Live HTTP Headers
Modify Header Value (HTTP Headers)
Add custom HTTP request headers to any site. Set Authorization tokens, override Content-Type, inject debug headers per URL pattern. declarativeNetRequest. Free: 5 rules, Pro: unlimited.

C++
Nim (programming language)
V (programming language)
Go Programming Language
Perl
Pike programming language
Crystal (programming language)
D is a language with C-like syntax and static typing.

Which is more popular?
Based on our record, D (Programming Language) seems to be more popular. It has been mentioned 60 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Header Editor
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| Website | dev-tools-hub.xyz | dlang.org |
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What each product offers, as listed by its team.

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D Language Tutorial
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Header Editor and D (Programming Language). For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking Header Editor since Aug 2026.
I've spent 2 weeks (2-4h per day) to make D language[1] version of Sciter SDK [2] Choice of AI "tooling" was by accident - typed something like "how to define copy constructor in D for custom structure" in Microsoft's Copilot in Edge... - Source: Hacker News / 5 months ago
> Mostly, I am not really trying to compete with C/C++/Rust on speed, but I'm not going to add a GC either. So I'm somewhere in there. Out of curiosity, how would you compare the goals of Rue with something like D[0] or one of the... - Source: Hacker News / 10 months ago
The D language home page has something similar with a drop down with code examples https://dlang.org/. - Source: Hacker News / about 1 year ago
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Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation
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Free browser extension to modify HTTP request and response headers. No sign-up. Works on Chrome, Firefox, and Edge.
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The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.
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An open-source ModHeader alternative trusted by 10,000+ developers. Edit and share headers with Profiles, URL filters, and a built-in tester.
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Simple, fast, safe, compiled language for developing maintainable software.
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