fast-activator
FastActivator: High-performance alternative to Activator.CreateInstance for .NET
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GITHUB · launched Oct 29, 2026 · 82 upvotes (top 20%)
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
- activator
- createinstance
- reflection
Similar launches
See all 538 similar launches →Could you build this?
Partial A basic wrapper around object instantiation is easy to vibe-code, but a genuinely high-performance replacement for Activator.CreateInstance depends on runtime-level work: compiled expressions or IL emit, JIT behaviour, and benchmarking that a vibe-coder may not get right.
What it would actually take: The core is a factory-caching library that compiles constructor calls to delegates via System.Linq.Expressions or DynamicMethod/IL emit, with a benchmark suite (e.g., BenchmarkDotNet) to prove the speedup. The hard part is understanding .NET runtime and JIT behaviour well enough to beat the baseline across scenarios, which takes a senior .NET performance engineer to verify and tune.
Competitors
Other products that read as similar to this one : 538 launches clear the similarity bar, closest 8 shown.
Attention rank: #118 of 539 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 364 days after the earliest competitor.
- fast-generic-new · github · 2026-10-29 · 82 upvotes · similarity 0.62
- facite-cli · github · 2026-10-29 · 82 upvotes · similarity 0.57
- acti-hastebin · github · 2026-10-29 · 82 upvotes · similarity 0.51
- activator-admin · github · 2026-10-29 · 82 upvotes · similarity 0.50
- zflash · github · 2026-10-16 · 15 upvotes · similarity 0.49
- Fastfetch-Designer · github · 2026-09-16 · 7 upvotes · similarity 0.48
- Windows_Activator · github · 2026-10-25 · 11 upvotes · similarity 0.47
- BlazingFastDotnet · github · 2026-10-23 · 270 upvotes · similarity 0.47
Other launches for this product
- No other launches for this product.