HCaptcha Reverse Engineered
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HN · launched Mar 31, 2026 · 5 upvotes (top 89%) · 20 views
Niche: reverse engineering tools · 102 launches, 5 in the last 7 days ▼ -29% · Explore this niche →
Category and tags
- Security
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 102 launches in reverse engineering tools →
Could you build this?
No Reverse-engineering and bypassing modern bot detection like hCaptcha requires advanced reverse engineering of obfuscated/polymorphic JavaScript, cryptographic proof-of-work challenges, and browser fingerprinting bypasses.
What it would actually take: A working automated solver involves deobfuscating hCaptcha's dynamic virtual-machine bytecode, intercepting telemetry signals (mouse trajectories, WebGL/canvas fingerprints, audio API quirks), and automating TLS fingerprint spoofing. The stack involves low-level AST manipulation (Babel/Terser), headless browser patching (e.g., custom Chromium builds or CDP overrides), and ML-based vision pipelines for captcha solving. Maintaining this demands continuous adversarial research against active anti-bot countermeasures.
Discussion
2 comments analyzed.
Concerns raised: Non-opensource non-pow captchas may be compromised, Captcha security vulnerabilities
Feature requests: Write-up or walkthrough documentation
Competitors
Other products that read as similar to this one : 107 launches clear the similarity bar, closest 8 shown.
Attention rank: #100 of 108 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 85 days after the earliest competitor.
- rea-rust · github · 2026-10-23 · 68 upvotes · similarity 0.45
- metis-reverse · github · 2026-10-17 · 47 upvotes · similarity 0.43
- awesome-rea · github · 2026-10-13 · 73 upvotes · similarity 0.40
- RXEngine · github · 2026-10-26 · 19 upvotes · similarity 0.40
- FCaptcha · ph · 2026-09-22 · 2 upvotes · similarity 0.40
- recaptcha-vm · github · 2026-11-02 · 27 upvotes · similarity 0.40
- Slack killed their OpenAPI spec, so we reverse engineered it · hn · 2026-04-15 · 8 upvotes · similarity 0.40
- rea-research · github · 2026-10-11 · 52 upvotes · similarity 0.39
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