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CSSTree validator installs statistics

By Sergey Melyukov (2 listings) · VS Code Marketplace · Programming Languages

Validate CSS according to W3C specs and browser implementations

View on VS Code Marketplace Fresh · Oct 20, 2026

CSSTree validator has 152,320 recorded installs on VS Code Marketplace, ranking #1836 of 2,501 tracked listings.

Installs
152,320
Official API · Oct 20, 2026
7-day growth
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Insufficient history
30-day growth
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Insufficient history
90-day growth
—
Insufficient history
Rank
#1836
Among tracked VS Code Marketplace listings

Rating: 3.91 / 5 from 11 ratings

About CSSTree validator

VSCode CSSTree Validator

<a href="https://marketplace.visualstudio.com/items?itemName=smelukov.vscode-csstree" target="__blank"><img src="https://img.shields.io/visual-studio-marketplace/v/smelukov.vscode-csstree.svg?label=VSCode%20Marketplace" alt="Visual Studio Marketplace Version" /></a>

An extension for Visual Studio Code that validates CSS according to W3C specifications and browser implementations.

This extension highlights incorrect at-rules, properties, and values in your CSS files. It utilizes the CSSTree capabilities to analyze CSS syntax and report any issues.

Note: If you encounter false positives or false negatives—such as unknown properties being flagged or invalid values not being detected—please report these issues on the CSSTree issue tracker.

Note: Currently, CSSTree does not support selector syntax matching. As a result, this extension does not validate selectors. Selector validation will be added once it becomes available in CSSTree ([see issue #34](https://github.com/csstree/csstree/issues/34)).

Example

Extension Settings

  • csstree.enable: Enable or disable the CSSTree validator extension.

Troubleshooting

To prevent overlapping warnings with VSCode's default CSS linting, you can disable the built-in linter by adding the following setting to your configuration:

"css.validate": false

License

MIT

Description from the VS Code Marketplace listing.

  • css
  • csstree
  • lint
  • validator
  • w3c

README badge

Show your rank in a README or on your website. The badge updates automatically.

Charts

Images: 30d · 1y · all time · 1600×900 dark

Adoption over time

CSSTree validator installs on VS Code Marketplace, last 90 days: 152,320 installs as of Oct 20, 2026.CSSTree validatorInstalls on VS Code Marketplace · Last 90 days152,320installs152.3K152.3K152.3K152.3K152.3K152.3KJul 22Aug 6Aug 21Sep 5Sep 20Oct 5Oct 20installsobservedarchived (Internet Archive)no observationsOct 16, 2026 – Oct 20, 2026 · 5 observations · Updated Oct…pluginstats.com
CSSTree validator installs on VS Code Marketplace, last 90 days: 152,320 installs as of Oct 20, 2026.

7/30/90-day growth

CSSTree validator installs growth on VS Code Marketplace: 7-day growth unavailable, 30-day growth unavailable, 90-day growth unavailable.CSSTree validatorInstalls growth on VS Code Marketplace152,320installs now7-day growthinsufficient historyInsufficient history30-day growthinsufficient historyInsufficient history90-day growthinsufficient historyInsufficient historyGrowth vs. nearest observation to each baseline date · Updated Oct 20, 2026pluginstats.com
CSSTree validator installs growth on VS Code Marketplace: 7-day growth unavailable, 30-day growth unavailable, 90-day growth unavailable.

Ranking history

CSSTree validator VS Code Marketplace ranking history: currently #1836 (by installs).CSSTree validatorVS Code Marketplace ranking · by installs · Last 90 days#1836current rank#1834#1835#1836#1837#1838Jul 22Aug 6Aug 21Sep 5Sep 20Oct 5Oct 20rankOct 16, 2026 – Oct 20, 2026 · 5 observations · Updated Oct 20, 2026pluginstats.com
CSSTree validator VS Code Marketplace ranking history: currently #1836 (by installs).

Ratings over time

CSSTree validator ratings on VS Code Marketplace, last 90 days: 11 ratings as of Oct 20, 2026.CSSTree validatorRatings on VS Code Marketplace · Last 90 days11ratings9.51010.51111.51212.5Jul 22Aug 6Aug 21Sep 5Sep 20Oct 5Oct 20ratingsobservedarchived (Internet Archive)no observationsOct 16, 2026 – Oct 20, 2026 · 5 observations · Updated Oct…pluginstats.com
CSSTree validator ratings on VS Code Marketplace, last 90 days: 11 ratings as of Oct 20, 2026.

Listing placement

All VS Code Marketplace2,501 listings · 126 pages · 1,252 shown · page 92, #16 (overall #1,836)
All VS Code Marketplace: every listing in installs order

Listing placement

Programming Languages792 listings · 40 pages · page 31, #9 (overall #609)
Programming Languages: every listing in installs order

Listing placement

Linters252 listings · 13 pages · page 10, #16 (overall #196)
Linters: every listing in installs order

Filled points are observed values; hollow points come from Internet Archive snapshots of the listing page. Dashed segments span periods with no observations — values between points are not interpolated.

Each band is one page of 20. Installs on a linear scale. Placement is projected from installs, so it can differ from the marketplace's own sort order. Hover a dot to see the listing.

Recent observations

Full history (5)
Recent installs observations for CSSTree validator
Date (UTC)InstallsChange vs. previous
152,320+23
152,297+14
152,283+7
152,276+6
152,270—

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All 20 CSSTree validator alternatives

Data source

Install counts, average rating, and rating counts come from the public Visual Studio Marketplace gallery API. Installs are cumulative and exclude updates.

Listing: https://marketplace.visualstudio.com/items?itemName=smelukov.vscode-csstree. First seen Oct 16, 2026; last successful collection Oct 20, 2026. See the methodology.