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Head-to-head · Code Formatting Tools

clang-format vs Biome

  • Updated Sep 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score clang-format #4 in Code Formatting Tools 7.4/10 Free plan Free plan✓ 4 of 4 features Visit clang-format
Biome #5 in Code Formatting Tools 7.1/10 Free plan Free plan✓ 0 of 4 features Visit Biome

clang-format leads on 4 checks, Biome on 0, and 1 is even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreclang-format · 7.4/10
  • Free planboth
  • Most featuresclang-format · 4 of 4

clang-format scores higher on our rubric for code formatting tools: 7.4 against 7.1 out of 10; our editors rank them #4 and #5.

clang-format offers editor integration; Biome doesn't publish it. clang-format offers ignore files; Biome doesn't publish it. clang-format offers changed-lines formatting; Biome doesn't publish it. clang-format offers library api; Biome doesn't publish it.

clang-format is the better fit for C and C++ projects. Biome is the better fit for web teams wanting lint and format.

  • clang-format fits best

    C and C++ projects

  • Biome fits best

    Web teams wanting lint and format

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. It never changes our verdict. How we rank.

Side by side

Feature clang-format 7.4/10 Visit ↗ Biome 7.1/10 Visit ↗
At a glance
Editor score 7.4 7.1
Ranking #4 in Code Formatting Tools #5 in Code Formatting Tools
Best for C and C++ projects Web teams wanting lint and format
Pricing model Free Free
Starting price Not published Not published
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS, Linux Windows, macOS, Linux
Support Docs Community, Docs
Integrations 7 integrations 5 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features clang-format 4/4 · Biome 0/4
Editor integration ✓ (best) Not published
Ignore files ✓ (best) Not published
Changed-lines formatting ✓ (best) Not published
Library API ✓ (best) Not published
Specs
Supported languages C, C++, Java, JavaScript, JSON, Objective-C, Protocol Buffers, C#, TableGen, TextProto, Verilog Not published
Supported platforms Windows, macOS, Linux Not published
License model Open_source Not published
Our review
Pros
  • Predefined LLVM, GNU, Google, Chromium, Microsoft, Mozilla, and WebKit styles
  • Changed-line formatting, ignore files, patches, and unified-diff scripts
  • Integrations for Vim, Emacs, CLion, Visual Studio, VS Code, and Git
  • Combines formatting, lint diagnostics, autofixes, and import sorting
  • Supports custom lint diagnostics through GritQL plugins
  • Works with VS Code, IntelliJ, Zed, CI, Docker, and standalone binaries
Cons
  • Configuration can require project-specific .clang-format files and style decisions
  • Its command-line and editor integration model may be more technical than hosted tools
  • Formatting scope and behavior vary across its supported languages
  • Language support spans 17 entries, including experimental and in-progress languages
  • Not every listed language currently supports linting
  • Its focus is web projects rather than a general-purpose language toolchain
Our verdict

clang-format is an open-source source-code formatter from the LLVM Project, built on Clang and LibFormat. It formats source files or standard input from the command line and supports C, C++, Java, JavaScript, JSON, Objective-C, Protocol…

Read the review →

Biome is an open-source toolchain for web projects that brings together a formatter, linter, command-line interface, and Language Server Protocol integration. It is aimed at developers and web teams maintaining JavaScript, TypeScript, JSX,…

Read the review →
  1. clang-formatCode Formatting Tools 7.4Free plan
  2. BiomeCode Formatting Tools 7.1Free plan

Strengths and trade-offs

  • clang-format — where it wins

    • Predefined LLVM, GNU, Google, Chromium, Microsoft, Mozilla, and WebKit styles
    • Changed-line formatting, ignore files, patches, and unified-diff scripts
    • Integrations for Vim, Emacs, CLion, Visual Studio, VS Code, and Git

    Where it doesn't

    • Configuration can require project-specific .clang-format files and style decisions
    • Its command-line and editor integration model may be more technical than hosted tools
    • Formatting scope and behavior vary across its supported languages

  • Biome — where it wins

    • Combines formatting, lint diagnostics, autofixes, and import sorting
    • Supports custom lint diagnostics through GritQL plugins
    • Works with VS Code, IntelliJ, Zed, CI, Docker, and standalone binaries

    Where it doesn't

    • Language support spans 17 entries, including experimental and in-progress languages
    • Not every listed language currently supports linting
    • Its focus is web projects rather than a general-purpose language toolchain

More comparisons

All code formatting tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update