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Kyle Simpson on GitHub

Kyle Simpson

@getify

Kyle Simpson is a Human-Centric Technologist. He's fighting for the people behind the pixels.

  • Getify Solutions
  • Austin, TX
  • 216K
    Total stars
  • 45K
    Followers
  • 71
    Public repos
  • 174
    Contributions

1 following

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Profile tree

  • Contributions: 174. Past 12 months.
  • Followers: 45,418. People who follow you.
  • Total stars: 216,153. Across all repos.
  • Following: 1. People you follow.
  • Public repos: 71. Owned, non-fork.

A living snapshot

Every leaf is a headline number from Kyle Simpson’s public GitHub. The canopy fills out as the work grows - sway and all.

  • 174 Contributions Past 12 months
  • 45K Followers People who follow you
  • 216K Total stars Across all repos
  • 1 Following People you follow
  • 71 Public repos Owned, non-fork

Data from GitHub API · refreshed in real time

What your GitHub says

Based on public GitHub activity · how this is calculated

  • JavaScript is the largest language share across analyzed repositories, at 92%.

    High confidence

  • Public visibility is concentrated: the top 3 analyzed repositories account for 94% of total stars, led by You-Dont-Know-JS.

    Medium confidence

  • Public GitHub activity is implementation-heavy: commits account for 71% of tracked contribution activity.

    Medium confidence

  • 2 of 40 analyzed repositories were pushed to in the last 6 months.

    Medium confidence

  • This analysis covers 40 of 71 public repositories (56%); broader totals may differ.

    High confidence

Profile health

Signals from analyzed public data

Activity 24

Needs work

  • 174 contributions in the trailing year
Portfolio 34

Needs work

  • 2 of 40 analyzed repositories are actively maintained
  • 216,153 stars across analyzed repositories
Discoverability 60

Developing

  • 2 of 40 analyzed repositories have no description
  • 15 of 40 have no topic tags
Maintenance 5

Needs work

  • 2 of 40 analyzed repositories were pushed to in the last 6 months
  • 16 show no public activity in over a year
Collaboration 7

Needs work

  • 4 pull requests and 3 code reviews in the trailing year
  • 428 repositories starred

Recruiter snapshot

A skim of public evidence, not a hiring judgement

Technical focus
JavaScript / HTML / CSS / C++

Largest language shares across analyzed repositories

Project depth
2 of 40

Analyzed repositories rated established or maintained

Collaboration
4 PRs / 3 reviews

Public pull requests and code reviews in the trailing year

Community signals
216,153 stars / 36,659 forks

Summed across analyzed repositories

Recent activity
11 of last 12 months

Calendar months with at least one tracked contribution

Strongest signals

  • 2 of 40 analyzed repositories have no description

174
Contributions
Past 12 months
0
Current streak
No active streak
5
Longest streak
Aug 9, 2026 – Aug 13, 2026
Sep Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Mon Wed Fri
Less More

Language distribution for getify JavaScript 92.5%, HTML 5.0%, CSS 1.6%, C++ 0.8%, C 0.1%, TypeScript 0.0%, Other 0.0%
  • JavaScript 92.5%
  • HTML 5.0%
  • CSS 1.6%
  • C++ 0.8%
  • C 0.1%
  • TypeScript 0.0%
  • Other 0.0%

Frontend Backend Mobile DevOps Data AI Security Embedded Game Dev
  • Frontend 100
  • Backend 3
  • Security 3
  • Embedded 3
  • Mobile 0
  • DevOps 0
  • Data 0
  • AI 0
  • Game Dev 0

Longest streak
5d
Aug 2026
Favourite coding day
Friday
40 contributions
Most active year
2022
607 contributions
Signature language
JavaScript
92% of tracked code
Flagship repository
You-Dont-Know-JS
184,944 stars
On GitHub since
2009
16 years and counting

Kyle Simpson is a developer on GitHub whose public work is written mostly in JavaScript, which accounts for roughly 92% of their committed code, alongside HTML and CSS. Their account holds 71 public repositories, collecting 216,153 stars in total, led by You-Dont-Know-JS at 184,944. In the trailing year the account logged 174 contributions. Kyle Simpson has been on GitHub since 2009 and is followed by 45,418 developers.

This overview is generated from Kyle Simpson’s public GitHub activity at the time of the last refresh. Figures cover public repositories and the trailing twelve months of contributions.

  1. 01

    Review CAF

    High impact

    CAF is pinned to your profile but hasn't been pushed to in over a year.

    CAF →
  2. 02

    Review Functional-Light-JS

    High impact

    Functional-Light-JS is pinned to your profile but hasn't been pushed to in over a year.

    Functional-Light-JS →
  3. 03

    Add topics to JSON.minify

    Low impact

    JSON.minify has no topic tags, making its technology harder to discover.

    JSON.minify →

How these are calculated: see the methodology page .

Functional-Light-JS

Pragmatic, balanced FP in JavaScript. @FLJSBook on twitter.

  • book
  • javascript
  • functional-programming
  • training-materials
JavaScript 16,729 ★ 1,913 forks 15 issues yesterday
NOASSERTION Live demo GitHub
CAF

Cancelable Async Flows (CAF)

  • async
  • library
  • cancelable
  • promises
JavaScript 1,360 ★ 49 forks 2 issues 2mo ago
MIT GitHub
monio

The most powerful IO monad implementation in JS, possibly in any language!

  • javascript
  • js
  • fp
  • functional-programming
JavaScript 1,124 ★ 60 forks 5 issues 20d ago
MIT GitHub
LABjs Archived

Loading And Blocking JavaScript: On-demand parallel loader for JavaScript with execution order dependencies

  • script-loader
  • performance
HTML 2,258 ★ 304 forks 10 issues 18d ago
Live demo GitHub
asynquence Archived

Asynchronous flow control (promises, generators, observables, CSP, etc)

  • javascript
  • async
  • flow-control
  • promises
JavaScript 1,730 ★ 146 forks 15 issues yesterday
GitHub
fasy

FP iterators that are both eager and asynchronous

  • functional-programming
  • fp
  • async
  • asynchronous-programming
JavaScript 547 ★ 20 forks 5 issues 1mo ago
MIT GitHub

Most popular
You-Dont-Know-JS

184,944 stars

Most recently active
foi-lang

Last pushed 22d ago

Longest maintained
monio

Active for 6.3y

Most discoverable
You-Dont-Know-JS

100% of discoverability signals present

passkey-garden

A peaceful exploration of passkey branding and UX

HTML 30 ★ 3 forks
monio

The most powerful IO monad implementation in JS, possibly in any language!

JavaScript 1,124 ★ 60 forks
CAF

Cancelable Async Flows (CAF)

JavaScript 1,360 ★ 49 forks
foi-lang

Foi: a different kind of functional programming language

JavaScript 332 ★ 19 forks
You-Dont-Know-JS

A book series (2 published editions) on the JS language.

184,944 ★ 33,410 forks
Functional-Light-JS

Pragmatic, balanced FP in JavaScript. @FLJSBook on twitter.

JavaScript 16,729 ★ 1,913 forks

  • You-Dont-Know-JS 184,944 ★

    A book series (2 published editions) on the JS language.

  • Functional-Light-JS 16,729 ★

    Pragmatic, balanced FP in JavaScript. @FLJSBook on twitter.

  • LABjs 2,258 ★

    Loading And Blocking JavaScript: On-demand parallel loader for JavaScript with execution order dependencies

  • asynquence 1,730 ★

    Asynchronous flow control (promises, generators, observables, CSP, etc)

  • CAF 1,360 ★

    Cancelable Async Flows (CAF)

  • monio 1,124 ★

    The most powerful IO monad implementation in JS, possibly in any language!

All repositories →

Public visibility is concentrated in a small number of projects - these are the strongest candidates to feature on a resume.

Top 1 repository 86% of stars
Top 3 repositories 94% of stars
Top 5 repositories 96% of stars

Leading repository: You-Dont-Know-JS (184,944 stars, 216,153 total across analyzed repositories)

Technology breakdown

Derived from repository languages and topics - horizontal bars, never a pie.

Languages

  • JavaScript 92%
  • HTML 5%
  • CSS 2%
  • C++ 1%
  • C 0%
  • TypeScript 0%

Frameworks

  • React 100%

Tools

  • Eslint 100%

README, contributing-guide and GitHub Actions badges below are detected by exact filename on each repository’s default branch - they report presence, not quality.

  • You-Dont-Know-JS Developing
    Popularity 100
    Discoverability 100
    Maintenance 40
    README Contributing guide No CI workflow
  • foi-lang Established
    Popularity 0
    Discoverability 100
    Maintenance 100
    README No contributing guide CI: 1 workflow
  • monio Established
    Popularity 1
    Discoverability 75
    Maintenance 65
    README No contributing guide No CI workflow
  • Functional-Light-JS Dormant
    Popularity 9
    Discoverability 100
    Maintenance 0
    README Contributing guide No CI workflow
  • youperiod.app Dormant
    Popularity 0
    Discoverability 100
    Maintenance 0
    README No contributing guide No CI workflow
  • TypL Dormant
    Popularity 0
    Discoverability 100
    Maintenance 0
    README No contributing guide No CI workflow
  • elasi Dormant
    Popularity 0
    Discoverability 100
    Maintenance 0
    README No contributing guide No CI workflow
  • dwordly-game Dormant
    Popularity 0
    Discoverability 100
    Maintenance 0
    README No contributing guide No CI workflow
  • eslint-plugin-proper-arrows Dormant
    Popularity 0
    Discoverability 75
    Maintenance 15
    README No contributing guide CI: 1 workflow
  • LABjs Archived
    Popularity 1
    Discoverability 75
    Maintenance 0
    README No contributing guide No CI workflow
  • CAF Dormant
    Popularity 1
    Discoverability 75
    Maintenance 0
    README No contributing guide No CI workflow
  • TNG-Hooks Archived
    Popularity 0
    Discoverability 75
    Maintenance 0
    README No contributing guide No CI workflow

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Eigene Angaben ergänzen
Kontakt
Berufserfahrung
Ausbildung

71
Public repos
40 analyzed
216K
Total stars
Across all repos
174
Contributions
Past 12 months
4
Pull requests
Opened this year
411
Public gists
Snippets shared
16 y
Account age
Since 2009
100 %
Profile score
Completeness

Repository explorer

→

Name Language Stars Forks Size Updated

Coding statistics

→
Largest repository
31.0 MB
Functional-Light-JS
Smallest repository
1 KB
Incomplete-JS
Oldest repository
Nov 8, 2009
LABjs
Newest repository
Feb 24, 2023
workshop-periodic-table
Most starred
184,944 ★
You-Dont-Know-JS
Most forked
33,410 forks
You-Dont-Know-JS
Most watched
5,764 watchers
You-Dont-Know-JS
Longest description
114 characters
BikechainJS
Most open issues
23 open
TypL

Contribution patterns

→

By year

  • 2026
    113
  • 2025
    248
  • 2024
    333
  • 2023
    208
  • 2022
    607
  • 2021
    337

By day of week

  • Sun
    32
  • Mon
    27
  • Tue
    26
  • Wed
    21
  • Thu
    6
  • Fri
    40
  • Sat
    20

Best coding day: Fri

By month (last 12)

  • Oct
    6
  • Nov
    36
  • Dec
    16
  • Jan
    10
  • Feb
    8
  • Mar
    3
  • Apr
    3
  • May
    50
  • Jun
    11
  • Jul
    0
  • Aug
    27
  • Sep
    1

GitHub journey

→
  1. November 2009

    Joined GitHub

    Created the @getify account.

  2. November 2009

    Created first repository

    Published LABjs, the oldest repository still on the account.

  3. November 2009

    First starred repository

    LABjs is the earliest-created repository to have earned stars.

  4. November 2013

    Reached 10 repositories

    You-Dont-Know-JS was the 10th public repository created.

  5. June 2022

    Most productive year: 2022

    607 contributions recorded in 2022, more than any other year on record.

  6. February 2023

    Latest repository

    workshop-periodic-table is the most recently created repository.

Developer evolution

Your GitHub career, year by year.

 →
2009

Started with HTML.

HTML
Repos this year
1
Total repos
1
Stars, as of today
2.3k
LABjs
2010

Shifted from HTML to C++.

C++ JavaScript
Repos this year
3
Total repos
4
Stars, as of today
3.1k
JSON.minify
2011

Shifted from C++ to JavaScript.

JavaScript
Repos this year
1
Total repos
5
Stars, as of today
3.1k
wepuzzleit
2012

Went deeper into JavaScript.

JavaScript
Repos this year
2
Total repos
7
Stars, as of today
5.2k
asynquence
2013

Went deeper into JavaScript.

JavaScript
Repos this year
3
Total repos
10
Stars, as of today
190k
You-Dont-Know-JS
2014

Went deeper into JavaScript.

JavaScript
Repos this year
2
Total repos
12
Stars, as of today
191k
native-promise-only
2015

Went deeper into JavaScript.

JavaScript
Repos this year
6
Total repos
18
Stars, as of today
192k
A-Tale-Of-Three-Lists
2016

Went deeper into JavaScript.

JavaScript
Repos this year
3
Total repos
21
Stars, as of today
209k
Functional-Light-JS
2017

Went deeper into JavaScript.

JavaScript
Repos this year
2
Total repos
23
Stars, as of today
210k
fasy
2018

Went deeper into JavaScript.

JavaScript
Repos this year
2
Total repos
25
Stars, as of today
213k
CAF
2019

Went deeper into JavaScript.

JavaScript
Repos this year
6
Total repos
31
Stars, as of today
214k
TypL
2020

Went deeper into JavaScript.

JavaScript
Repos this year
2
Total repos
33
Stars, as of today
215k
monio
2021

Went deeper into JavaScript.

JavaScript
Repos this year
1
Total repos
34
Stars, as of today
215k
Contributions
337
domio
2022

Went deeper into JavaScript.

JavaScript
Repos this year
5
Total repos
39
Stars, as of today
216k
Contributions
607
youperiod.app
2023

Shipped 1 repository.

Repos this year
1
Total repos
40
Stars, as of today
216k
Contributions
208
workshop-periodic-table

Built from getify’s public, non-fork repositories. Star totals reflect current counts, not historical snapshots.

Achievements

5 / 9 unlocked

Explorer
Created repositories in 8 or more languages
Builder
More than 50 public repositories
Open Source Enthusiast
100+ stars received across all repositories
Consistent
A 100-day-or-longer contribution streak
Documentation Hero
5 or more repositories with a detailed description
Popular
500 or more followers
Prolific Committer
1,000 or more commits in the past 12 months
Long Timer
5 or more years on GitHub
Star Collector
Starred 100 or more repositories

Open source activity

216,153
Stars received
428
Repositories starred
36,659
Forks received
42
Issues opened
Past 12 months
4
Pull requests opened
Past 12 months
3
Reviews given
Past 12 months
411
Public gists

Language evolution

The primary languages of repositories created each year.

2009
  • HTML
2010
  • C++
  • JavaScript
2011
  • JavaScript
2012
  • JavaScript
2013
  • JavaScript
2014
  • JavaScript
2015
  • JavaScript
2016
  • JavaScript
2017
  • JavaScript
2018
  • JavaScript
2019
  • JavaScript
2020
  • JavaScript
2021
  • JavaScript
2022
  • JavaScript

Repository growth

Repositories created per year, and the running total.

1 repositories created in 2009 3 repositories created in 2010 1 repositories created in 2011 2 repositories created in 2012 3 repositories created in 2013 2 repositories created in 2014 6 repositories created in 2015 3 repositories created in 2016 2 repositories created in 2017 2 repositories created in 2018 6 repositories created in 2019 2 repositories created in 2020 1 repositories created in 2021 5 repositories created in 2022 1 repositories created in 2023 1 total repositories by end of 2009 4 total repositories by end of 2010 5 total repositories by end of 2011 7 total repositories by end of 2012 10 total repositories by end of 2013 12 total repositories by end of 2014 18 total repositories by end of 2015 21 total repositories by end of 2016 23 total repositories by end of 2017 25 total repositories by end of 2018 31 total repositories by end of 2019 33 total repositories by end of 2020 34 total repositories by end of 2021 39 total repositories by end of 2022 40 total repositories by end of 2023 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 40 0
Created that year Cumulative total

Language tree

Built automatically from repository languages and topics.

Programming Languages →
  • JavaScript
  • HTML
  • CSS
  • C++
  • C
  • TypeScript
Frontend & Backend →
  • React 1
Tooling →
  • Eslint 3