Ross ROSS = Recommend OSS · open-source software intelligence for agents

GumTreeDiff/gumtree

An awesome code differencing tool observed · 2026-08-28

github.com/GumTreeDiff/gumtree · homepage · Java · LGPL-3.0 (copyleft) observed · 2026-08-28

Health v2 · maintenance only

89/100

  • Activity 99
  • Release rhythm 69
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: 98
  • age_days: 4367
  • days_rel: 49
  • days_push: 8
  • n_releases_24m: 6

Full methodology

Adoption not part of the score

1332 stars · 188 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

GumTree is a syntax-aware code differencing tool that computes diffs on abstract syntax trees rather than raw text. It aligns edit actions with language syntax and detects moved or renamed code elements, and can be integrated with Git.

Use cases

  • compare two versions of a source file with syntax-aware diff
  • detect moved or renamed functions between code revisions
  • generate AST-based edit scripts for code changes
  • integrate semantic diffing into a Git workflow
  • analyze fine-grained source code changes for research

When to choose

  • you need diffs that respect language syntax instead of line-based text diffs
  • you want to detect code moves and renames that text diffs miss
  • you need a Java library or CLI for AST differencing across languages like C, Java, JavaScript, Python, R, or Ruby

When to avoid

  • you only need simple line-based text diffs
  • your language is not among the supported parsers
  • you need a graphical diff tool with rich IDE integration

Facets

cli-tool · maturity active

parser developer-tools cli developer-tools version-control parsers cross-platform cli jvm code-differencing ast-diff syntax-aware-diff git-integration

2 sources

Member repositories

RepositoryRoleHealth v2
GumTreeDiff/gumtreemain89

For agents

markdown · JSON · MCP: product_card(name="GumTreeDiff/gumtree")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem