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Parser

A parser turns its input (often text in form of a file) into a more advantageous representation (usually a certain data structure in memory) to perform a specific task.

Common examples include:

parsers for markup languages (e.g. HTML/Markdown etc)

parsers for data-serialization formats (e.g. JSON/XML/YAML etc)

parsers used as part of/in conjunction with a compiler (in this case, the parser consumes the tokenized input emitted by the Lexer and ultimately feeds the resulting parse tree/concrete syntax tree into the compiler)

Here are 15,502 public repositories matching this topic...

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opendatalab /MinerU

Transforms complex documents like PDFs into LLM-ready markdown/JSON for your Agentic workflows.

python pdf parser ocr pdf-converter extract-data document-analysis pdf-parser layout-analysis ai4science pdf-extractor-rag pdf-extractor-llm pdf-extractor-pretrain

UpdatedFeb 9, 2026
Python

markedjs /marked

A markdown parser and compiler. Built for speed.

markdown gfm parser compiler commonmark hacktoberfest

UpdatedFeb 18, 2026
TypeScript

swc-project /swc

Rust-based platform for the Web

javascript rust parser babel typescript compiler ecmascript swc typescript-compiler typescript-parser ecmascript-parser

UpdatedFeb 19, 2026
Rust

cheeriojs /cheerio

The fast, flexible, and elegant library for parsing and manipulating HTML and XML.

html jquery parser scraper dom cheerio selector hacktoberfest htmlparser2 htmlparser

UpdatedFeb 20, 2026
TypeScript

postcss

postcss /postcss

Transforming styles with JS plugins

css parser framework postcss ast

UpdatedFeb 18, 2026
TypeScript

tree-sitter /tree-sitter

An incremental parsing system for programming tools

c rust tree-sitter parser parsing incremental wasm

UpdatedFeb 20, 2026
Rust

vector

vectordotdev /vector

A high-performance observability data pipeline.

rust parser events router pipeline metrics vector logs stream-processing forwarder hacktoberfest observability

UpdatedFeb 20, 2026
Rust

oxc

oxc-project /oxc

⚓ A collection of high-performance JavaScript tools.

javascript parser typescript compiler linter transpiler minifier

UpdatedFeb 20, 2026
Rust

nikic /PHP-Parser

A PHP parser written in PHP

php parser static-analysis ast

UpdatedDec 6, 2025
PHP

erusev /parsedown

Better Markdown Parser in PHP

markdown php parser markdown-parser

UpdatedFeb 18, 2026
PHP

json-iterator /go

A high-performance 100% compatible drop-in replacement of "encoding/json"

go golang serialization parser json serializer deserialization json-parser

UpdatedMay 27, 2024
Go

jsoup

jhy /jsoup

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

css java html parser dom xml jsoup xpath css-selectors java-html-parser

UpdatedFeb 10, 2026
Java

munificent /craftinginterpreters

Repository for the book "Crafting Interpreters"

c java language markdown parser interpreter bytecode compiler book scripting-language lox

UpdatedAug 7, 2024
HTML

rust-bakery /nom

Rust parser combinator framework

rust parser parse parser-combinators grammar nom byte-array

UpdatedAug 26, 2025
Rust

terser /terser

🗜 JavaScript parser, mangler and compressor toolkit for ES6+

javascript parser es6 uglifyjs compressor mangler

UpdatedFeb 19, 2026
JavaScript

tobymao /sqlglot

Python SQL Parser and Transpiler

mysql python bigquery parser postgres sql spark presto hive clickhouse sqlite snowflake optimizer transpiler redshift databricks tsql trino sqlparser duckdb

UpdatedFeb 20, 2026
Python

bytedance /Dolphin

The official repo for “Dolphin: Document Image Parsing via Heterogeneous Anchor Prompting”, ACL, 2025.

python pdf parser ocr pdf-converter document-analysis pdf-parser layout-analysis vlm-ocr

UpdatedDec 17, 2025
Python

mvdan /sh

A shell parser, formatter, and interpreter with bash support; includes shfmt

go shell bash parser formatter interpreter beautify posix mksh shfmt

UpdatedFeb 16, 2026
Go

dasel

TomWright /dasel

Select, put and delete data from JSON, TOML, YAML, XML, INI, HCL and CSV files with a single tool. Also available as a go mod.

config go cli golang yaml toml parser json query xml configuration update selector data-structures data-wrangling devops-tools data-processing yaml-processor json-processing hcl2

UpdatedFeb 19, 2026
Go

lightningcss

parcel-bundler /lightningcss

An extremely fast CSS parser, transformer, bundler, and minifier written in Rust.

css rust parser compiler build-tool minifier

UpdatedFeb 19, 2026
Rust

Followers: 140 followers
Website: github.com/topics/parser

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