+ unpkg is a fast, global content delivery network for everything on{' '} + npm. Use it to quickly + and easily load any file from any package using a URL like: +
+ +Using a fixed version:
+ +
- unpkg is a fast, global content delivery network for everything on{' '}
-
- npm
-
- . Use it to quickly and easily load any file from any package using
- a URL like:
+ You may also use a{' '}
+ semver range{' '}
+ or a tag{' '}
+ instead of a fixed version number, or omit the version/tag entirely
+ to use the latest
tag.
+
+ If you omit the file path (i.e. use a “bare” URL), unpkg
+ will serve the file specified by the unpkg
field in{' '}
+ package.json
, or fall back to main
.
+
+ Append a /
at the end of a URL to view a listing of all
+ the files in a package.
+
?meta
+ /any/file?meta
)
+ ?module
+ import
specifiers
+ {' '}
+ in JavaScript modules to unpkg URLs. This feature is{' '}
+ very experimental
+ + The CDN caches files based on their permanent URL, which includes + the npm package version. This works because npm does not allow + package authors to overwrite a package that has already been + published with a different one at the same version number. +
+
+ Browsers are instructed (via the Cache-Control
header)
+ to cache assets indefinitely (1 year).
+
+ URLs that do not specify a package version number redirect to one
+ that does. This is the latest
version when no version
+ is specified, or the maxSatisfying
version when a{' '}
+
+ semver version
+ {' '}
+ is given. Redirects are cached for 10 minutes at the CDN, 1 minute
+ in browsers.
+
+ If you want users to be able to use the latest version when you cut + a new release, the best policy is to put the version number in the + URL directly in your installation instructions. This will also load + more quickly because we won't have to resolve the latest + version and redirect them. +
+ ++ For npm package authors, unpkg relieves the burden of publishing + your code to a CDN in addition to the npm registry. All you need to + do is include your{' '} + UMD build in your + npm package (not your repo, that's different!). +
+ +You can do this easily using the following setup:
+ +umd
(or dist
) directory to your{' '}
+ .gitignore
file
+ umd
directory to your{' '}
+
+ files array
+ {' '}
+ in package.json
+ umd
directory when you publish
+
+ That's it! Now when you npm publish
you'll
+ have a version available on unpkg as well.
+
+ unpkg is an{' '} + open source{' '} + project built and maintained by{' '} + Michael Jackson. + unpkg is not affiliated with or supported by npm, Inc. in any way. + Please do not contact npm for help with unpkg. Instead, please reach + out to @unpkg with any + questions or concerns. +
+ ++ The unpkg CDN is powered by{' '} + Cloudflare, one of + the world's largest and fastest cloud network platforms.{' '} + {hasStats && ( + + In the past month, Cloudflare served over{' '} + {formatBytes(stats.totals.bandwidth.all)} to{' '} + {formatNumber(stats.totals.uniques.all)} unique + unpkg users all over the world. + + )}
+ The origin infrastructure runs on{' '} + Google Cloud which + automatically scales the number of available servers to meet the + current demand. +
-Using a fixed version:
- -
- You may also use a{' '}
-
- semver range
- {' '}
- or a{' '}
-
- tag
- {' '}
- instead of a fixed version number, or omit the version/tag entirely to
- use the latest
tag.
-
- If you omit the file path (i.e. use a “bare” URL), unpkg
- will serve the file specified by the unpkg
field in{' '}
- package.json
, or fall back to main
.
-
- Append a /
at the end of a URL to view a listing of all
- the files in a package.
-
?meta
- /any/file?meta
)
- ?module
- import
specifiers
- {' '}
- in JavaScript modules to unpkg URLs. This feature is{' '}
- very experimental
- - The CDN caches files based on their permanent URL, which includes the - npm package version. This works because npm does not allow package - authors to overwrite a package that has already been published with a - different one at the same version number. -
-
- Browsers are instructed (via the Cache-Control
header) to
- cache assets indefinitely (1 year).
-
- URLs that do not specify a package version number redirect to one that
- does. This is the latest
version when no version is
- specified, or the maxSatisfying
version when a{' '}
-
- semver version
- {' '}
- is given. Redirects are cached for 10 minutes at the CDN, 1 minute in
- browsers.
-
- If you want users to be able to use the latest version when you cut a - new release, the best policy is to put the version number in the URL - directly in your installation instructions. This will also load more - quickly because we won't have to resolve the latest version and - redirect them. -
- -- For npm package authors, unpkg relieves the burden of publishing your - code to a CDN in addition to the npm registry. All you need to do is - include your{' '} - - UMD - {' '} - build in your npm package (not your repo, that's different!). -
- -You can do this easily using the following setup:
- -umd
(or dist
) directory to your{' '}
- .gitignore
file
- umd
directory to your{' '}
-
- files array
- {' '}
- in package.json
- umd
directory when you publish
-
- That's it! Now when you npm publish
you'll have
- a version available on unpkg as well.
-
- unpkg is an{' '} - - open source - {' '} - project built and maintained by{' '} - - Michael Jackson - - . unpkg is not affiliated with or supported by npm, Inc. in any way. - Please do not contact npm for help with unpkg. Instead, please reach - out to{' '} - - @unpkg - {' '} - with any questions or concerns. -
- -- The unpkg CDN is powered by{' '} - - Cloudflare - - , one of the world's largest and fastest cloud network platforms.{' '} - {hasStats && ( - - In the past month, Cloudflare served over{' '} - {formatBytes(stats.totals.bandwidth.all)} to{' '} - {formatNumber(stats.totals.uniques.all)} unique - unpkg users all over the world. - - )} -
- -- The origin servers for unpkg are powered by{' '} - - Google Cloud - {' '} - and made possible by a generous donation from the{' '} - - Angular web framework - - , one of the world's most popular libraries for building - incredible user experiences on both desktop and mobile. -
- -© {new Date().getFullYear()} UNPKG