Developer Tools●●Solid
Fastest(?) SIMD CSV Parser in Rust
Beats simd-csv with pclmulqdq trick, but CSV parsing is a solved category.
WizardryBig Brain
juliusgeo
104mo ago
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✈️ Blazing fast codemods with a super simple API.
30 starsTypeScript
Zmod codemod toolkit, 8x faster
by oss-luke·Mar 7, 2026·2 points·0 comments
AI Analysis
●●●BangerWizardryShip It
jscodeshift drop-in replacement, 8x faster on real monorepos—API compatibility is the moat.
Strengths
- •100% jscodeshift API compatibility eliminates migration friction—swap import, run, done
- •8x speedup (up to 11.7x on small files) is measured and significant for enterprise workflows
- •Rust + oxc foundation is fundamentally faster; proves concept with 21 react-codemod fixtures passing
Weaknesses
- •Early-stage (3 stars, 19 commits)—production stability and edge-case coverage unknown
- •Oxc parser matureness relative to TypeScript compiler (Babel) is risk for complex AST transforms
Category
Target Audience
Frontend engineers managing large codebases, TypeScript/React monorepo maintainers
Similar To
jscodeshift · Codemod.com · ast-grep
Post Description
I built zmod because running jscodeshift on a large enterprise monorepo was taking 4-5+ minutes.
It's 100% API compatible with jscodeshift — just swap the import — but powered by Rust + oxc under the hood.
Benchmarked at 8x faster on average, up to 11.7x on small files. 21 react-codemod transforms passing.
Still early. Feedback welcome.
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