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Tree-sitter

Some data may be outdated — see provenance labels.

An incremental parsing system for programming tools observed · 2026-10-01

github.com/tree-sitter/tree-sitter · homepage · Rust · MIT (permissive) observed · 2026-10-01

Health v2 · maintenance only

96/100

  • Activity 97
  • Release rhythm 93
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.

  • gap_med: 16.0
  • age_days: 4731
  • days_rel: 51
  • days_push: 20
  • n_releases_24m: 27

Full methodology

Adoption not part of the score

27097 stars · 2928 forks observed · 2026-10-01

What it is AI-extracted, prompt v1, taxonomy v1, 2026-10-05, confidence 0.98

Tree-sitter is a parser generator and incremental parsing library written in C with Rust bindings. It builds concrete syntax trees for source files and updates them efficiently as the code changes.

Use cases

  • Generate a concrete syntax tree for a source file in an editor
  • Provide real‑time syntax highlighting and error detection while typing
  • Power language servers and IDE features with incremental parsing
  • Create code analysis or refactoring tools that need up‑to‑date ASTs
  • Embed a fast, dependency‑free parser in custom applications

When to choose

  • You need fast, incremental parsing that updates on every keystroke
  • Your tool must work with many programming languages without heavy dependencies
  • You want a library that can be embedded in editors, IDEs, or language servers
  • You require a pure C runtime that can also be used from Rust or WebAssembly

When to avoid

  • You need deep semantic analysis or type checking beyond syntax
  • Your project relies on a full compiler front‑end rather than just parsing
  • You prefer a parser with built‑in code generation or interpretation capabilities

Facets

library · maturity active

parser cli developer-tools programming-languages windows wasm cli incremental-parsing syntax-tree rust c language-agnostic tree-sitter-cli linux macos

3 sources

Member repositories

RepositoryRoleHealth v2
tree-sitter/tree-sittermain96
tree-sitter/tree-sitter-cliinfra10

For agents

markdown · JSON · MCP: product_card(name="tree-sitter/tree-sitter")

Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem