Developer Tools●●●Banger
TagLib-WASM – Read/write audio metadata with all JavaScript runtimes
TagLib compiled to WASM fills a real gap—JS had no battle-tested audio tagging library.
Big BrainWizardryShip It
CharlesW
103mo ago
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14 starsJavaScript
Tiny-parquet – JavaScript lib to read/write Parquet in 326KB of WASM
by Nikitaita·Feb 24, 2026·2 points·0 comments
AI Analysis
●●●BangerSolve My ProblemDark HorseSlick
Only Parquet lib fitting Cloudflare Workers free tier—flat schemas, 20MB/s throughput.
Strengths
- •Fits CF Workers (10MB limit) + Vercel Edge; competitors are 3.5–8GB bloat.
- •Production-proven: millions of events/day; measurable 5ms write latency on 100KB.
- •Two-function API (readParquet/writeParquet) with zero config; Rust/WASM core handles encoding.
Weaknesses
- •Flat schemas only—no nested types, complex array handling, or column projection.
- •Edge-only niche; less relevant for data warehouse or batch pipelines.
Category
Target Audience
Edge computing developers, data pipeline builders, analytics engineers on constrained runtimes
Similar To
parquet-wasm · duckdb-wasm · parquetjs
Post Description
Built a JS library for reading and writing Apache Parquet files that actually fits on edge runtimes (CF Workers, Vercel Edge, Deno Deploy, etc.)
326KB total, zero dependencies, two functions: readParquet and writeParquet.
Flat schemas only — no nested types. Great for logs, events, analytics. ~100KB write takes ~5ms, ~20 MB/s throughput.
Been running it in production with millions of events per day. Rust/WASM core is ~440 lines.
npm install tiny-parquet
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