strictEq uses open software from the following npm package authors and contributors:

Alan Plum: http-errors
Alberto Schiabel: @types/node
Aleksey V Zapparov: js-yaml
Alex Indigo: asynckit
Alex Liu: fast-safe-stringify
Alex Sexton: stripe
Alexander Metzner: glossy
Alexander T.: @types/node
Alexandru Marasteanu: sprintf-js
Alvis HT Tang: @types/node
Andrei Tuputcyn: pako
Andrew Kassen: @kemitchell/docopt, docopt
Andrew Makarov: @types/node
Andrew Meyer: gray-matter
Andrew Rhyne: debug
Andris Reinman: nodemailer
Anna Henningsen: @types/node
António Afonso: jszip
Ariya Hidayat: esprima
Arnout Kazemier: querystringify, requires-port, url-parse
Ask Bjørn Hansen: stripe
Ben Coe: cliui, require-main-filename, set-blocking, y18n, yargs-parser
Ben Gourley: fast-safe-stringify
Benjamin Thomas: mime
Benjamin Toueg: @types/node
Brad Martin: email-validator
Brian White: busboy, dicer, streamsearch
Brian Woodward: gray-matter, repeat-string
Bruno Scheufler: @types/node
C. Scott Ananian: spdx-expression-parse
Caesar Schinas: gray-matter
Calvin Metcalf: immediate
Chigozirim C.: @types/node
Christoph Walcher: fast-safe-stringify
Christophe Diederichs: sodium-native
DY: color-name
Dan Flettre: github-slugger
David Björklund: etag
David Duponchel: jszip
David Fox-Powell: kind-of
David Junger: @types/node
David Mark Clements: atomic-sleep, fast-redact, fast-safe-stringify, flatstr, pino, pino-http, quick-format-unescaped
DefinitelyTyped: @types/node
Deividas Bakanas: @types/node
Domenic Denicola: immediate
Dominic Tarr: lock, sha.js
Donavon West: immediate
Douglas Christopher Wilson: cookie, depd, destroy, ee-first, encodeurl, etag, fresh, http-errors, mime-db, mime-types, on-finished, range-parser, send, statuses, toidentifier
Emerson Macedo: gravatar
Emil Bay: nanoassert, secure-password, sodium-native
Eric Cornelius: glossy
Eugene Shkuropat: argparse
Eugene Y. Q. Shen: @types/node
Evgeny Poberezkin: fast-deep-equal
ExE Boss: @types/node
Felix Boehm: entities
Felix Geisendörfer: combined-stream, delayed-stream, form-data
Feross Aboukhadijeh: run-auto, run-parallel, run-parallel-limit, run-series, safe-buffer, simple-concat
Flarna: @types/node
Franz Buchinger: jszip
Friedel Ziegelmayer: pako
Fyodor Y: glossy
Gabriel Lesperance: fast-safe-stringify
Gary Katsevman: object-keys
Hannes Magnusson: @types/node
Heather Arthur: color-convert
Hoàng Văn Khải: @types/node
Huw: @types/node
Ian Storm Taylor: gray-matter
Ilia Baryshnikov: @types/node
Irakli Gozalishvili: querystring
Isaac Z. Schlueter: core-util-is, dezalgo, fs.realpath, glob, inflight, ini, lru-cache, minimatch, normalize-package-data, once, read-package-json, read-package-tree, readdir-scoped-modules, wrappy, yallist
Ivan Starkov: object-keys
James: kind-of
James Halliday: concat-map, deep-equal, minimist, object-inspect
James Padolsey: stripe
James Sumners: pino, pino-std-serializers
James Wyatt Cready: range-parser, send
Jason Kwok: @types/node
Jean-loup Gailly: pako
Jeremiah Senkpiel: mime-types
Jesús Leganés Combarro: send
John MacFarlane: commonmark
John-David Dalton: punycode
Jon Schlinkert: extend-shallow, gray-matter, is-extendable, kind-of, repeat-string, romanize, section-matter, strip-bom-string
Jonathan Ong: destroy, ee-first, fresh, http-errors, mime-db, mime-types, on-finished, range-parser, statuses
Jordan Harband: define-properties, es-abstract, es-to-primitive, function-bind, has, has-symbols, is-arguments, is-callable, is-date-object, is-object, is-regex, is-symbol, object-is, object-keys, object.assign, qs, regexp.prototype.flags, string.prototype.trimend, string.prototype.trimleft, string.prototype.trimright, string.prototype.trimstart
Jordi Oliveras Rovira: @types/node
Julian Gruber: balanced-match, brace-expansion, isarray
Junxiao Shi: @types/node
Junyoung Clare Jang: @types/color-name
Kat Marchán: json-parse-better-errors
Kelvin Jin: @types/node
Ken Sheedlo: kind-of
Kevin Mårtensson: url-regex
Khaled Al-Ansari: string.prototype.trimend, string.prototype.trimstart
Kirill Efimov: pako
Klaus Meinhardt: @types/node
Kyle E. Mitchell: @kemitchell/docopt, agreement-schedules-exhibits-numbering, alphabet-numbering, commonform-commonmark, commonform-docx, commonform-fix-strings, commonform-flatten, commonform-group-series, commonform-hash, commonform-number, commonform-predicate, commonform-prepare-blanks, commonform-resolve, commonform-serialize, commonform-smartify, creditstxt, decimal-numbering, do-not-cache, json-parse-errback, lower-alpha, markdown-escape, npm-authors-contributors, ooxml-signature-pages, outline-numbering, plan-addenda-exhibits-numbering, resolutions-schedules-exhibits-numbering, simple-concat-limit, spdx-correct, spdx-expression-parse, validate-npm-package-license
Kyle Mitchell: romanize
Kyle Uehlein: @types/node
Linus Unnebäck: repeat-string
Lishude: @types/node
Manish Saraan: email-validator
Marcin Kopacz: @types/node
Mariusz Wiktorczyk: @types/node
Mark Adler: pako
Martin Grenfell: js-yaml
Mathias Buus: duplexify, end-of-stream, node-gyp-build, pumpify, sodium-native, stream-shift
Mathias Buus Madsen: pump
Mathias Bynens: emoji-regex, punycode, string.prototype.repeat
Mathieu Turcotte: backoff, precond
Matt Bornski: glossy
Matt Esch: http-hash
Matteo Collina: fast-json-parse, fast-safe-stringify, pino, pino-http, sonic-boom, split2
Matthias Rolke: @kemitchell/docopt, docopt
Maximilian Lloyd: string-repeat
Meryn Stol: normalize-package-data
Michael Hernandez - michael.hernandez1988@gmail.com: xml-escape
Michelle Bu: stripe
Microsoft TypeScript: @types/node
Miguel Mota: kind-of
Mike Atkins: delayed-stream
Minh Son Nguyen: @types/node
Mohsen Azimi: @types/node
Nathan Rajlich: debug, object-keys, util-deprecate
Nicholas Young: fast-safe-stringify
Nick Baugh: toidentifier
Nicolas Even: @types/node
Nicolas Voigt: @types/node
Nikita Galkin: @types/node
Ola Holmström: iso-3166-2
Osman Nuri Okumuş: gray-matter
Osmond van Hemert: pino-papertrail
Parambir Singh: @types/node
Paul Jacobson: argparse
Paul Johnston: blueimp-md5
Pawel Kadluczka: gray-matter
Peter deHaan: kind-of
Petka Antonov: fast-url-parser
Piotr Błażejewicz: @types/node
Raynos: function-bind, is-object, object-keys
Rebecca Turner: hosted-git-info
Rob Loach: gray-matter
Robert Kieffer: mime, mime-db
Robert Kowalski: normalize-package-data
Rod Vagg: through2
Rodrigo Neri: indefinite-article
Roman Shtylman: cookie
Ruben Bridgewater: fast-safe-stringify
Sam Day: stream-buffers
Sam Roberts: debuglog
Samuel Ainsworth: @types/node
Sebastian Silbermann: @types/node
Sebastian Tschan: blueimp-md5
Shinnosuke Watanabe: spdx-expression-parse, spdx-license-ids
Simon Schick: @types/node
Sindre Sorhus: ansi-regex, ansi-styles, builtin-modules, camelcase, decamelize, find-up, fs-access, ip-regex, is-builtin-module, is-fullwidth-code-point, locate-path, null-check, object-assign, p-limit, p-locate, p-try, path-exists, path-is-absolute, set-immediate-shim, slash, string-width, strip-ansi, wrap-ansi
Squeeks: glossy
Stan Carney: glossy
Stefan Penner: get-caller-file
Stephen Mathieson: tlds
Stephen Sugden: capitalize
Stripe: stripe
Stuart Carnie: @kemitchell/docopt, docopt
Stuart Knightley: jszip
Surasak Chaisurin: @types/node
TJ Holowaychuk: debug, fresh, range-parser, send
Thanik Bhongbhibhat: @types/node
Thiago de Arruda: has
Thijs Busser: repeat-string
Thomas Watson Steen: pino
Thomas den Hollander: @types/node
Titus: repeat-string
Titus Wormer: github-slugger
Trivikram Kamat: @types/node
Troy Goode: require-directory
Vitaly Puzrin: js-yaml, pako
Vladimir Keleshev: @kemitchell/docopt, docopt
Vladimir Zapparov: js-yaml
Wes Todd: setprototypeof
Wilco Bakker: @types/node
Yaffle: immediate
Yargs Contributors: yargs
Zach Whaley: gray-matter
artifi: glossy
horpto: glossy
laggingreflex: kind-of
nexdrew: which-module
tunnckoCore: kind-of
wwwy3y3: @types/node
yiminghe: jszip
zaphod1984: glossy