Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Linters

Biome vs Astral

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Biome #8 in Linters 8.4/10 Free plan Free plan✓ 4 of 4 features Visit Biome
Astral #10 in Linters 8.2/10 Free plan Free plan✓ 3 of 4 features Visit Astral

Biome leads on 2 checks, Astral on 0, and 4 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreBiome · 8.4/10
  • Free planboth
  • Most featuresBiome · 4 of 4

Biome scores higher on our rubric for linters: 8.4 against 8.2 out of 10; our editors rank them #8 and #10.

Biome leads on languages supported: 17 versus 1. Biome offers custom rules; Astral doesn't.

Biome is the better fit for teams linting and formatting web code. Astral is the better fit for python teams seeking linting, fixes, and formatting.

  • Biome fits best

    Teams linting and formatting web code

  • Astral fits best

    Python teams seeking linting, fixes, and formatting

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 Biome 8.4/10 Visit ↗ Astral 8.2/10 Visit ↗
At a glance
Editor score 8.4 8.2
Ranking #8 in Linters #10 in Linters
Best for Teams linting and formatting web code Python teams seeking linting, fixes, and formatting
Pricing model Free Free
Starting price Free plan Free plan
Free plan ✓ ✓
Free trial — —
Deployment Desktop Self-hosted
Platforms Windows, macOS, Linux Windows, macOS, Linux
Support Community, Docs Docs
Integrations 5 integrations 6 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features Biome 4/4 · Astral 3/4
Autofix ✓ ✓
Custom rules ✓ (best) —
Security rules ✓ ✓
CI support ✓ ✓
Specs
Languages supported 17 (best) 1
IDE support Ide Ide
Our review
Pros
  • Combines linting, formatting, autofixes, import sorting, and CI checks
  • Supports editor workflows through VS Code, IntelliJ, and Zed integrations
  • Offers custom diagnostics, configurable rules, Docker images, and standalone binaries
  • More than 900 built-in lint rules with configurable selection and suppression
  • Can automatically fix supported findings and format Python code
  • Supports editor language servers, Jupyter files, and CI workflows
Cons
  • Some listed languages are experimental or in progress
  • Not all listed language entries currently support linting
  • Its focus is web projects rather than general-purpose codebases
  • Supports Python rather than multiple programming languages
  • Does not support custom user-created lint rules
  • Support channels listed are documentation only
Our verdict

Biome is an open-source toolchain for web projects, combining a formatter, linter, command-line interface, and Language Server Protocol integration. It is aimed at developers and teams maintaining modern web applications, with support for…

Read the review →

Astral is a Python developer-tools company whose products include Ruff, an open-source linter and code formatter written in Rust. Ruff is for Python developers and teams that want to check files from the command line, configure which…

Read the review →
  1. BiomeLinters 8.4Free plan
  2. AstralLinters 8.2Free plan

Strengths and trade-offs

  • Biome — where it wins

    • Combines linting, formatting, autofixes, import sorting, and CI checks
    • Supports editor workflows through VS Code, IntelliJ, and Zed integrations
    • Offers custom diagnostics, configurable rules, Docker images, and standalone binaries

    Where it doesn't

    • Some listed languages are experimental or in progress
    • Not all listed language entries currently support linting
    • Its focus is web projects rather than general-purpose codebases

  • Astral — where it wins

    • More than 900 built-in lint rules with configurable selection and suppression
    • Can automatically fix supported findings and format Python code
    • Supports editor language servers, Jupyter files, and CI workflows

    Where it doesn't

    • Supports Python rather than multiple programming languages
    • Does not support custom user-created lint rules
    • Support channels listed are documentation only
  • Biome8.4/10 · Free plan

    An open-source web toolchain combining linting, formatting, fixes, and editor support.

    Visit BiomeFull verdict →
  • Astral8.2/10 · Free plan

    An open-source Python linter and formatter with fixes, editor support, and CI integration.

    Visit AstralFull verdict →

More comparisons

All linters comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update