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Today: 1,383 launchs · Niche of the day: document and PDF processing tools · See full report →

data parsing libraries and tools

Recent window: last 5.4 months (2026-05-01 → 2026-10-11), compared with the prior 5.4 months.

horizontal · 58 members · Data as of 2026-10-14

Data parsing libraries and tools extract, transform, and validate complex or proprietary file formats, markup, and raw streams into structured data. They are built for software engineers and data practitioners who need to programmatically inspect code, decode binary schemas, or prepare documents for downstream applications. Unlike comprehensive ETL platforms or generic data integration tools, these utilities focus directly on low-level syntax analysis, grammar generation, and high-performance format decoding.

This theme's recent-window count is below the current min-count filter, so it does not appear in the opportunity scorecard.

Pulled from real Hacker News comment threads on this niche's launches.

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Members

Name Source Upvotes ▲ Launched
LedgerPanda PH 1 2026-09-30
Free Case Converter Tool PH 1 2026-09-26
Bank statements converter PH 1 2026-09-21
Invoice to JSON Extractor PH 2 2026-10-06
DMARC XML Report Analyzer by DMARKOFF PH 3 2026-10-02
Nihonpost HN 5 2026-07-13
Liteparser HN 5 2026-03-11
Lythonic HN 5 2026-04-13
JustHTML HN 6 2025-12-02
Transit-format (JSON/MessagePack) reader/writer in C HN 6 2026-06-08
Invofox HN 6 2026-10-05
Meon HN 6 2026-07-05
The fastest JSON parser for Go HN 7 2026-07-31
genpark-agent-codebase-ast-dependency-slicer-skill GITHUB 7 2026-09-28
genpark-lexer-regex-tokenizer-engine-skill GITHUB 7 2026-09-28
genpark-robots-txt-crawl-delay-policy-evaluator-skill GITHUB 7 2026-09-29
Your all-in-one text engine HN 7 2026-08-20
Py-SQL-cleaner HN 7 2026-05-28
Classify-filename HN 7 2026-07-14
Libfyaml 1.0.0-alpha1, a modern YAML library for C HN 7 2026-03-18
A parser for the ISO 10303 EXPRESS language for its 40th anniversary HN 7 2026-06-07
genpark-base64-image-mime-dimension-analyzer-skill GITHUB 7 2026-09-29
librenlp GITHUB 8 2026-09-22
gopd GITHUB 8 2026-09-15
genpark-earley-context-free-grammar-parser-skill GITHUB 8 2026-09-09
genpark-earley-context-free-grammar-parser-skill GITHUB 8 2026-09-09
WhiskeySour HN 8 2026-04-25
I built a CSV parser to try Go 1.26's new SIMD package HN 8 2026-01-27
ExprTk High-Performance C++ Math Expression Parser Evaluation Engine HN 8 2026-01-16
DeepTable HN 8 2026-03-31
genpark-cocke-younger-kasami-cyk-pcfg-parser-skill GITHUB 8 2026-09-09
python-data-parser GITHUB 8 2026-09-27
perex GITHUB 10 2026-09-10
motherload GITHUB 10 2026-10-06
Zig parser in ~70 lines of JavaScript HN 10 2026-01-17
INI-Weaver-Module-Library GITHUB 11 2026-10-01
flask-csv-summary GITHUB 12 2026-10-05
comark-knap GITHUB 12 2026-09-13
LiteParse, a fast open-source document parser for AI agents HN 12 2026-03-20
LiteParse v2, now in Rust 100x faster HN 15 2026-05-28
arrow-decimal GITHUB 17 2026-10-07
herringbone GITHUB 18 2026-09-30
jsort GITHUB 18 2026-09-19
dasssr GITHUB 19 2026-09-18
Local Document Parsing for Agents HN 20 2026-03-19
RUG GITHUB 24 2026-09-27
cjkfold GITHUB 25 2026-10-13
astral-html GITHUB 32 2026-10-04
Rust based eBook library for Python, with MIT license HN 33 2026-04-09
oxbox GITHUB 41 2026-09-28