Gathering detailed insights and metrics for @patrickkettner/mdn-browser-compat-data
Gathering detailed insights and metrics for @patrickkettner/mdn-browser-compat-data
Gathering detailed insights and metrics for @patrickkettner/mdn-browser-compat-data
Gathering detailed insights and metrics for @patrickkettner/mdn-browser-compat-data
Browser compatibility data for Web technologies as displayed on MDN
npm install @patrickkettner/mdn-browser-compat-data
Typescript
Module System
Node Version
NPM Version
JSON (98.18%)
TypeScript (1.81%)
JavaScript (0.02%)
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
CC0-1.0 License
5,314 Stars
19,205 Commits
2,223 Forks
255 Watchers
27 Branches
1,108 Contributors
Updated on Jul 13, 2025
Latest Version
0.0.4
Package Id
@patrickkettner/mdn-browser-compat-data@0.0.4
Unpacked Size
8.20 MB
Size
338.19 kB
File Count
1,208
NPM Version
5.4.2
Node Version
8.7.0
Cumulative downloads
Total Downloads
Last Day
0%
NaN
Compared to previous day
Last Week
0%
NaN
Compared to previous week
Last Month
0%
NaN
Compared to previous month
Last Year
0%
NaN
Compared to previous year
https://github.com/mdn/browser-compat-data
This repository contains compatibility data for Web technologies. Browser compatibility data describes which platforms (where "platforms" are usually, but not always, web browsers) support particular Web APIs.
This data can be used in documentation, to build compatibility tables listing browser support for APIs. For example: Browser support for WebExtension APIs.
Maintained by the MDN team at Mozilla.
You can install mdn-browser-compat-data as a node package (tutorial).
npm install mdn-browser-compat-data
1const bcd = require('mdn-browser-compat-data'); 2bcd.css.properties.background; 3// returns a compat data object (see schema)
There's a top-level directory for each broad area covered: for example, "http", "javascript", "webextensions". Inside each of these directories is one or more JSON file containing the compatibility data.
Please note that we have not (yet) migrated all compatibility data from the MDN wiki pages into this repository.
css/ contains data for CSS properties, selectors and at-rules.
html/ contains data for HTML elements, attributes and global attributes.
javascript/ contains data for JavaScript built-in Objects, statement, operators and or other ECMAScript language features.
webdriver/ contains data for WebDriver commands.
webextensions/ contains data for WebExtensions JavaScript APIs and manifest keys.
svg/ contains data for SVG elements, attributes and global attributes.
The definitive description of the format used to represent compatibility data is the schema file. You can also have a look at the schema documentation.
Please note that we do not (yet) guarantee the stability of the data format. You're welcome to use the data, but its structure is subject to change without notice.
If you find a problem, please file a bug.
We're very happy to accept contributions to this data. Please familiarize yourself with the schema and send us a pull request. See also the Contributing file for more information.
Here are some projects using the data, as an npm module or directly:
No vulnerabilities found.
Reason
all changesets reviewed
Reason
30 commit(s) and 2 issue activity found in the last 90 days -- score normalized to 10
Reason
no dangerous workflow patterns detected
Reason
license file detected
Details
Reason
no binaries found in the repo
Reason
0 existing vulnerabilities detected
Reason
dependency not pinned by hash detected -- score normalized to 6
Details
Reason
SAST tool is not run on all commits -- score normalized to 3
Details
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
detected GitHub workflow tokens with excessive permissions
Details
Reason
project is not fuzzed
Details
Reason
Project has not signed or included provenance with any releases.
Details
Reason
security policy file not detected
Details
Score
Last Scanned on 2025-07-07
The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.
Learn More