npm, the awesome source code package manager for JavaScript and stuff, publishes a specification for license metadata in package.json files. The spec asks maintainers to use the SPDX standard’s license expression syntax to show how their work is licensed in a machine-readable way. You will get a warning if you don’t.

In most cases, that's as easy as setting your license property (not licenses, as for RubyGems) to MIT, ISC, BSD-2-Clause, Apache-2.0, or some other string on SPDX' official list. You can even Unlicense or WTFPL, you rebel, you.

The following is a list of packages among the 1,000 most-depended-upon (the “npm1K”) that aren't yet part of that better world. There are handy links for making quick pull requests to fix package.json if you’d like to help them out. Given how vital these packages are, each one with a good license property helps make Node easier to adopt in new and different teams, many of which are dipping timid corporate toes into open-source for the very first time.

Who cares? Nobody cares! Until they have to do a license check. Then, thanks to how amazing npm is, you’re left staring down a bottomless well of node_modules directories you must search, manually, for LICENSE files and hints in README. But shouldn’t some lousy program do that kind of work for you? Of course! And it would sure help if the npm ecosystem offered good, clean metadata to chew on.

Special thanks to @beaugunderson and @tunnckoCore.


94% valid
6% invalid

Mon, 16 Oct 2017 06:02:48 GMT

Package Latest Maintainers Fix It! Warnings
47 node-uuid 1.4.8 broofa defunctzombie
  • Missing license property
58 optimist 0.6.1 substack "MIT/X11"
  • license should be a valid SPDX license expression (without "LicenseRef"), "UNLICENSED", or "SEE LICENSE IN <filename>"
  • license is similar to the valid expression "MIT"
128 gulp-rename 1.2.2 hparra contra shinnn fractal
  • Missing license property
200 cli-table 0.3.1 rauchg
  • Missing license property
216 querystring 0.2.0 gozala
  • Missing license property
241 passport-local 1.0.0 jaredhanson
  • Missing license property
252 xmldom 0.1.27 jindw yaron bigeasy kethinov jinjinyun
  • Missing license property
324 wrench 1.5.9 ryanmcgrath
  • Missing license property
333 react-tap-event-plugin 3.0.2 s0meone
  • Missing license property
338 raw-loader 0.5.1 sokra
  • Missing license property
339 walk 2.3.9 coolaj86
  • Missing license property
343 adm-zip 0.4.7 cthackers
  • Missing license property
394 ssh2 0.5.5 mscdex
  • Missing license property
398 nomnom 1.8.1 harth
  • Missing license property
419 slug 0.9.1 dodo
  • Missing license property
434 bcrypt-nodejs 0.0.3 shanegirish
  • Missing license property
509 newrelic 2.2.2 lykkin
  • Missing license property
533 passport-oauth 1.0.0 jaredhanson
  • Missing license property
546 connect-flash 0.1.1 jaredhanson
  • Missing license property
557 hogan.js 3.0.2 fat sayrer
  • Missing license property
559 tv4 1.3.0 geraintluff bartvds [{"type":"Public Domain","url":"http://geraintluff.github.io/tv4/LICENSE.txt"},{"type":"MIT","url":"http://jsonary.com/LICENSE.txt"}]
  • Invalid license property
586 babel-preset-lfdoherty 1.0.6 lfdoherty
  • Missing license property
593 markdown 0.5.0 ashb dom
  • Missing license property
619 passport-strategy 1.0.0 jaredhanson
  • Missing license property
622 valid-url 1.0.9 odysseas sagens
  • Missing license property
635 iniparser 1.0.5 shockie
  • Missing license property
647 keymirror 0.1.1 strml
  • Missing license property
648 btoa 1.1.2 coolaj86 "Apache2"
  • license should be a valid SPDX license expression (without "LicenseRef"), "UNLICENSED", or "SEE LICENSE IN <filename>"
  • license is similar to the valid expression "Apache-2.0"
686 express-jwt 5.3.0 dschenkelman hzalaz jaredhanson jfromaniello pose woloski
  • Missing license property
723 clear 0.0.1 bahamas10
  • Missing license property
728 argv 0.0.2 codenothing
  • Missing license property
730 amqp 0.2.6 ry postwait
  • Missing license property
755 copy-paste 1.3.0 xavi
  • Missing license property
764 callsite 1.0.0 tjholowaychuk
  • Missing license property
766 slush 1.1.1 joakimbeng
  • Missing license property
784 busboy 0.2.14 mscdex
  • Missing license property
800 base-64 0.1.0 mathias
  • Missing license property
833 readline 1.3.0 craigbrookes "BSD"
  • license should be a valid SPDX license expression (without "LicenseRef"), "UNLICENSED", or "SEE LICENSE IN <filename>"
  • license is similar to the valid expression "BSD-2-Clause"
842 pg-hstore 2.3.2 scarney
  • Missing license property
848 exports-loader 0.6.4 bebraw d3viant0ne ericclemmons jhnns peerigon sokra thelarkinn
  • Missing license property
849 log 1.4.0 tjholowaychuk
  • Missing license property
859 docopt 0.6.2 stuartcarnie
  • Missing license property
877 source-map-loader 0.2.2 ericclemmons bebraw jhnns thelarkinn sokra jtangelder d3viant0ne
  • Missing license property
883 hat 0.0.3 substack "MIT/X11"
  • license should be a valid SPDX license expression (without "LicenseRef"), "UNLICENSED", or "SEE LICENSE IN <filename>"
  • license is similar to the valid expression "MIT"
886 clui 0.3.6 artokun nathanpeck
  • Missing license property
895 angular-material 1.1.5 angularcore
  • Missing license property
897 moment-range 3.0.3 adambiggs gf3 {"type":"Public Domain","url":"https://github.com/gf3/moment-range/raw/master/UNLICENSE"}
  • Invalid license property
898 rethinkdb 2.3.3 rethinkdb
  • Missing license property
905 entities 1.1.1 feedic "BSD-like"
  • license should be a valid SPDX license expression (without "LicenseRef"), "UNLICENSED", or "SEE LICENSE IN <filename>"
  • license is similar to the valid expression "BSD-2-Clause"
908 passport-http-bearer 1.0.1 jaredhanson
  • Missing license property
911 mandrill-api 1.0.45 mailchimp
  • Missing license property
962 fastclick 1.0.6 ftlabs mcg georgecrawfordft mattandrews
  • Missing license property
969 fs.extra 1.3.2 coolaj86
  • Missing license property
973 i 0.3.6 pksunkara
  • Missing license property
981 useragent 2.2.1 v1 3rdeden {"type":"MIT","url":"https://github.com/3rd-Eden/useragent/blob/master/LICENSE"}
  • Invalid license property
991 ftp 0.3.10 mscdex
  • Missing license property
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