🇨🇿 Czechia Open Source Contributors

Discover the top open source developers from the Czechia who are revolutionizing the IT world with their exceptional talent and ground-breaking projects.

Developers

6,290

Organizations

839

Repositories

41,533

Top Rank

Shell, C, Lua

🇨🇿 Made in Czechia Compare with other countries 🌐 All countries

Top Contributors

601
Milan Matějček (@h4kuna)

h4kuna

PHP, JavaScript, PLpgSQL
200
star
602
František Hába (@Baggz)

Baggz

JavaScript
200
star
603
Petr Vavrin (@peterbay)

peterbay

Python, C, PHP
199
star
604
Libor Novak (@libornovax)

libornovax

C++, TeX, Python
199
star
605
UUGear (@uugear)

uugear

Shell, C, C++
199
star
606
Lukáš Huvar (@huv1k)

huv1k

TypeScript, JavaScript, Shell
198
star
607
Richard Biely (@richardbiely)

richardbiely

C#, C++
198
star
608
Vision for Robotics and Autonomous Systems (@ctu-vras)

ctu-vras

Python, C++, MATLAB
197
star
609
Petr Hurtak (@Hurtak)

Hurtak

JavaScript, TypeScript, PHP
196
star
610
Massimo Filippi, s.r.o. (@massimo-filippi)

massimo-filippi

PHP, Shell, Rascal
195
star
611
@volca02

volca02

C++, Python, OpenSCAD
195
star
612
Michal Hlavac (@hlavki)

hlavki

Java, Groovy, Python
195
star
613
Sergey (@biblelamp)

biblelamp

Java, PHP, Go
195
star
614
Tomáš Bedřich (@tomasbedrich)

tomasbedrich

Python, Jupyter Notebook, TeX
194
star
615
Milan Svoboda (@tex)

tex

C++, Lua, Vim Script
194
star
616
SCS Software (@SCSSoftware)

SCSSoftware

Python, CSS
194
star
617
Jiri Bilek (@JiriBilek)

JiriBilek

C++
194
star
618
Jana Moudrá (@Janamou)

Janamou

Dart, Java, JavaScript
193
star
619
Orisai (@orisai)

orisai

PHP, Makefile, JavaScript
193
star
620
Vojtech Vitek (golang.cz) (@VojtechVitek)

VojtechVitek

Go, JavaScript, PHP
192
star
621
Tomáš Glozar (@lenticularis39)

lenticularis39

C, C++, Shell
192
star
622
Marek Dědič (@marekdedic)

marekdedic

TypeScript, C++, Julia
192
star
623
ThunderFly s.r.o. (@ThunderFly-aerospace)

ThunderFly-aerospace

G-code, HTML, Python
192
star
624
Kate Miháliková (@katemihalikova)

katemihalikova

TypeScript, JavaScript
192
star
625
Verse (@verse)

verse

JavaScript, Python, C
191
star
626
Shovel Installer (@shovel-org)

shovel-org

PowerShell, Shell
191
star
627
Vita (@docbender)

docbender

C++, C#, Java
190
star
628
Ondřej Nešpor (@Andrewsville)

Andrewsville

PHP
190
star
629
Ondřej Sojka (@tensojka)

tensojka

TypeScript, Mathematica, Python
188
star
630
Vojtěch Myslivec (@VojtechMyslivec)

VojtechMyslivec

Shell, Mathematica, C++
188
star
631
Michal Sojka (@wentasah)

wentasah

C++, Emacs Lisp, Python
187
star
632
Daniel Dolejška (@dolejska-daniel)

dolejska-daniel

Python, PHP, C#
187
star
633
Ludovit Scholtz (@scholtz)

scholtz

C#, Vue, TypeScript
187
star
634
Tom Krajnik (@gestom)

gestom

C++, Python, Smarty
186
star
635
Milan (@sulc)

sulc

Jupyter Notebook, Python
186
star
636
@jakubtomsu

jakubtomsu

Odin, C, JavaScript
185
star
637
Martin Kaše (@kasik96)

kasik96

C++, JavaScript, Rich Text Format
184
star
638
Martin Poljak (@martinpoljak)

martinpoljak

Ruby, Python, C
183
star
639
David Barina (@xbarin02)

xbarin02

C, Shell, C++
183
star
640
zxx (@Poco-z)

Poco-z

Java
183
star
641
Jaroslav Stehlik (@jaroslavstehlik)

jaroslavstehlik

C#, ShaderLab
183
star
642
Matronator (@matronator)

matronator

JavaScript, PHP, TypeScript
182
star
643
Paralelní Polis (@ParalelniPolis)

ParalelniPolis

CSS, JavaScript, Python
181
star
644
Karel Cemus (@KarelCemus)

KarelCemus

Scala
181
star
645
Jakub Holub (@holubj)

holubj

TypeScript, JavaScript, PHP
180
star
646
Martin Kolárik (@MartinKolarik)

MartinKolarik

JavaScript, TeX
180
star
647
David Sehnal (@dsehnal)

dsehnal

JavaScript
180
star
648
Jozef Chutka (@jozefchutka)

jozefchutka

Haxe, ActionScript, JavaScript
179
star
649
Matěj Račinský (@racinmat)

racinmat

Python, Jupyter Notebook, C++
179
star
650
3D Print Lab FIT CTU (@3DprintFIT)

3DprintFIT

Swift, Shell, CSS
178
star
651
Miloš Janda (@milosjanda)

milosjanda

JavaScript
177
star
652
Vilibald (@w-vi)

w-vi

Emacs Lisp, Python, C
177
star
653
Oleg Bulatov (@dmage)

dmage

Python, JavaScript, Go
177
star
654
Jirka Svoboda (@svobik7)

svobik7

JavaScript, TypeScript
177
star
655
@Dreamscapes

Dreamscapes

JavaScript, Makefile, PHP
176
star
656
Jan Dolecek (@juzna)

juzna

PHP, JavaScript, Python
175
star
657
Empty Keys (@EmptyKeys)

EmptyKeys

C#
174
star
658
jusiočřывп (@jusio)

jusio

JavaScript, TypeScript
174
star
659
Artem Prokop (@ExposedCat)

ExposedCat

JavaScript, TypeScript, Shell
174
star
660
Konstantin (@koss-lebedev)

koss-lebedev

TypeScript, JavaScript, Ruby
174
star
661
@xaralis

xaralis

Python, Java
173
star
662
Ulisses Castro (@ulissescastro)

ulissescastro

Lua, Python, PHP
173
star
663
Roman Galeev (@jamhed)

jamhed

Go, Erlang, Perl
173
star
664
Petr Michalec (@epcim)

epcim

Shell, Makefile, Go
172
star
665
Matěj Laitl (@strohel)

strohel

Python, JavaScript, Objective-C
171
star
666
@boi1216

boi1216

PHP, C#, JavaScript
170
star
667
Zdeněk Kasner (@kasnerz)

kasnerz

Python, TeX, HTML
169
star
668
Vít Brunner (@tasuki)

tasuki

Elm, JavaScript, HTML
169
star
669
Michal Landsman (@landsman)

landsman

JavaScript, HTML, Dockerfile
169
star
670
robotika.cz (@robotika)

robotika

Python, Java, HTML
169
star
671
Miloš Kozák (@lejmr)

lejmr

Shell, CSS, PHP
168
star
672
Tomáš Sláma (@xiaoxiae)

xiaoxiae

Python, Java, TeX
168
star
673
Petr Pavlik (@petrpavlik)

petrpavlik

Swift, Objective-C
167
star
674
Tomáš Král (@tomkr4l)

tomkr4l

SCSS, Python, Elixir
167
star
675
Jan Killian (@iki)

iki

Python, Jupyter Notebook, JavaScript
167
star
676
Jakub Červený (@jakubcerveny)

jakubcerveny

HTML, Python, C++
167
star
677
Michal Duda (@vookimedlo)

vookimedlo

Python, Swift, AppleScript
166
star
678
Michal Válka (@Warxim)

Warxim

Java
166
star
679
Ondřej Tůma (@ondratu)

ondratu

Python, C++, Vala
165
star
680
Jan Malčák (@malja)

malja

Python, C++
165
star
681
Viliam Elischer (@vire)

vire

JavaScript, TypeScript, Shell
165
star
682
JK (@thaarok)

thaarok

Java, CSS
165
star
683
Moravian Library in Brno (@moravianlibrary)

moravianlibrary

PHP, Java, JavaScript
164
star
684
Nocky (@NockyCZ)

NockyCZ

SourcePawn, C#
164
star
685
Jaroslav Hejlek (@gippy)

gippy

JavaScript
164
star
686
Slava (@snmslavk)

snmslavk

C#, JavaScript, CSS
163
star
687
Heureka Group (@heureka)

heureka

PHP, Python, HCL
163
star
688
Cybervitexus (@Vitexus)

Vitexus

Shell, PHP, Makefile
163
star
689
Josef Kříž (@pepakriz)

pepakriz

PHP, TypeScript, HTML
163
star
690
Ondrej Dusek (@tuetschek)

tuetschek

Python, Vim Script, Java
163
star
691
Petr Hlozek (@ok2cqr)

ok2cqr

Pascal, JavaScript, Python
163
star
692
Vlastimil Menčík (@vmencik)

vmencik

Scala, Java
162
star
693
LinkedPipes (@linkedpipes)

linkedpipes

JavaScript, HTML, Scala
162
star
694
Maroš Šeleng (@marosseleng)

marosseleng

Kotlin, CSS, Java
162
star
695
Vojta Svoboda (@vojtasvoboda)

vojtasvoboda

PHP, JavaScript, CSS
161
star
696
Tomáš Chaloupka (@tchaloupka)

tchaloupka

D, Lua
161
star
697
BlueBurn (@blueburncz)

blueburncz

C++, Yacc, Game Maker Language
160
star
698
Jaroslav Hanslík (@kukulich)

kukulich

Python, PHP, JavaScript
160
star
699
Martin Novák (@martinnov92)

martinnov92

JavaScript
159
star
700
Martin Dvořák (@madvorak)

madvorak

Lean, TeX, Shell
159
star

Statistics

By location

Prague 64.4%
Brno 21.0%
Ostrava 2.2%
Pilsen 1.5%
Liberec 1.0%
Other 10.0%

By programing language

JavaScript
15.8%
Python
14.9%
C++
8.3%
Java
8.1%
PHP
8.0%
Other
44.8%

World rating by programing language (country/rank)

Shell
21
C
24
Lua
25
C++
26
Rust
26

* More analytics for signed in users.