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Head-to-head · Code Refactoring Tools

ast-grep vs Spoon

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score ast-grep #2 in Code Refactoring Tools 8.7/10 Open source ✓ 0 of 3 features Visit ast-grep
Spoon #6 in Code Refactoring Tools 8.1/10 Free plan Free plan✓ 2 of 3 features Visit Spoon

ast-grep leads on 0 checks, Spoon on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreast-grep · 8.7/10
  • Free planonly Spoon
  • Most featuresSpoon · 2 of 3

ast-grep scores higher on our rubric for code refactoring tools: 8.7 against 8.1 out of 10; our editors rank them #2 and #6.

ast-grep is the better fit for developers needing free structural refactoring. Spoon is the better fit for java AST and source-transformation developers.

  • ast-grep fits best

    Developers needing free structural refactoring

  • Spoon fits best

    Java AST and source-transformation developers

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature ast-grep 8.7/10 Visit ↗ Spoon 8.1/10 Visit ↗
At a glance
Editor score 8.7 8.1
Ranking #2 in Code Refactoring Tools #6 in Code Refactoring Tools
Best for Developers needing free structural refactoring Java AST and source-transformation developers
Pricing model Free Free
Starting price Open source Free plan
Free plan Not checked yet ✓ (best)
Free trial — —
Deployment Self-hosted Desktop, Self-hosted
Support Community, Docs Community, Docs
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features ast-grep 0/3 · Spoon 2/3
Batch refactoring Not checked yet ✓ (best)
AI assistance Not checked yet Not checked yet
AST-based analysis Not checked yet ✓ (best)
Specs
Supported languages Not checked yet Java
Refactoring scope Not checked yet Repository
Deployment Not checked yet Desktop
Our review
Pros
  • AST-based search and rewriting support large-scale codemods
  • Custom YAML lint rules and language-server fixes
  • Works across Windows, macOS, and Linux
  • Builds and manipulates Java ASTs for programmable analysis and transformation
  • Supports Maven multi-module analysis and JAR decompilation for bytecode analysis
  • Pretty-prints transformed Java source files to an output directory
Cons
  • Local installation requires teams to manage their own deployment
  • AST pattern matching differs from plain-text search workflows
  • Editor integrations focus on VS Code, Neovim, and Emacs
  • Focused on Java rather than multiple programming languages
  • Requires Java development knowledge and processor-based workflows
  • Integration scope centers on Java and Maven project analysis
Our verdict

ast-grep is an open-source command-line tool for developers who need structural code search, linting, rewriting, and refactoring. Instead of matching only plain text, it works with abstract syntax tree patterns, making it suitable for…

Read the review →

Spoon is an open-source Java library and command-line tool for developers and researchers who need programmable source-code analysis, code generation, instrumentation, refactoring, or transpilation workflows. It builds and manipulates Java…

Read the review →
  1. ast-grepCode Refactoring Tools 8.7Open source
  2. SpoonCode Refactoring Tools 8.1Free plan

Strengths and trade-offs

  • ast-grep — where it wins

    • AST-based search and rewriting support large-scale codemods
    • Custom YAML lint rules and language-server fixes
    • Works across Windows, macOS, and Linux

    Where it doesn't

    • Local installation requires teams to manage their own deployment
    • AST pattern matching differs from plain-text search workflows
    • Editor integrations focus on VS Code, Neovim, and Emacs
  • Spoon — where it wins

    • Builds and manipulates Java ASTs for programmable analysis and transformation
    • Supports Maven multi-module analysis and JAR decompilation for bytecode analysis
    • Pretty-prints transformed Java source files to an output directory

    Where it doesn't

    • Focused on Java rather than multiple programming languages
    • Requires Java development knowledge and processor-based workflows
    • Integration scope centers on Java and Maven project analysis
  • ast-grep8.7/10 · Open source

    A free, open-source choice for structural searches, codemods, and custom linting.

    Visit ast-grepFull verdict →
  • Spoon8.1/10 · Free plan

    A programmable Java toolkit for AST analysis, refactoring, instrumentation, and source transformation.

    Visit SpoonFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update