I built an HTTP client that perfectly mimics Chrome 142
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BoringSSL and nghttp2. Matches JA3N, JA4, and JA4_R fingerprints. Supports HTTP/2, async/await, and works with Cloudflare-protected sites. Not trying to compete with curl_cffi - just a learning project that turned into something functional.
HN · launched Nov 8, 2025 · 39 upvotes (top 21%) · 0 views
Niche: network and communication protocol libraries · 70 launches, 5 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 70 launches in network and communication protocol libraries →
Could you build this?
No Perfectly mimicking modern browser TLS and HTTP/2 network stacks to bypass advanced anti-bot defenses requires low-level C/C++ networking, custom BoringSSL configurations, and precise protocol-level tuning.
What it would actually take: Requires compiling custom BoringSSL forks, finely tuning TLS extensions, cipher suites, ALPN, GREASE values, and exact HTTP/2 frame and window behaviors to replicate Chrome's JA3/JA4/JA4_R signatures. Developers need deep expertise in network security, protocol reverse-engineering, and C bindings to successfully evade Cloudflare and Akamai bot detection.
Discussion
6 comments analyzed.
Competitors mentioned: curl-impersonate
Concerns raised: Project abandonment risk and maintenance burden with browser changes, Large portion of code appears LLM-generated rather than hand-coded
Feature requests: JS/TS version of the tool
Competitors
Other products that read as similar to this one : 398 launches clear the similarity bar, closest 8 shown.
Attention rank: #78 of 399 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 10 days after the earliest competitor.
- Phtps · ph · 2026-11-10 · 1 upvotes · similarity 0.52
- Lightweight C++23 S3 client with no extra deps (just curl and OpenSSL) · hn · 2026-06-13 · 5 upvotes · similarity 0.51
- geektls · github · 2026-09-24 · 10 upvotes · similarity 0.50
- Snitchmd · hn · 2026-04-29 · 8 upvotes · similarity 0.50
- HTTP/3 and raw QUIC client/server APIs for Node.js · hn · 2026-06-08 · 16 upvotes · similarity 0.47
- php2shell · github · 2026-10-21 · 34 upvotes · similarity 0.46
- php2shell · github · 2026-10-23 · 96 upvotes · similarity 0.45
- QTap DevTools · hn · 2026-01-21 · 30 upvotes · similarity 0.45
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.