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Zero Allocation, SIMD-accelerated CSV iterator and emitter in Zig

13 starsZig

SIMD-accelerated, zero allocation CSV library in Zig

by peymo·Feb 16, 2026·3 points·0 comments
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AI Analysis

●●SolidWizardryNiche Gem

Field iterator + zero alloc forces explicit ownership; SIMD scanning is clever but niche.

Strengths
  • •Deliberate API minimalism (no record abstraction) prevents hidden allocation costs and forces transparent design
  • •SIMD acceleration via configurable scanning spans multiple CPU instruction sets
  • •Strict RFC 4180 validation simplifies fast paths and avoids ambiguous parsing states
Weaknesses
  • •Audience narrow: requires Zig adoption and systems-level performance sensitivity
  • •Field-level API demands more user code than competing libraries (csv-rs, pandas)
Target Audience

Systems engineers, performance-critical tooling developers, Zig users

Similar To

csv-rs · polars · datafusion

Post Description

Wrote a blog post for the implementation as well: https://peymanmo.com/posts/1-csv-zero

I learned a ton in the process and I got really decent benchmark results out of this!

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