🇨🇿 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

6,157

Organizations

830

Repositories

40,543

Top Rank

Shell, Dockerfile, C

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

Top Contributors

101
Evgeny (@Evalle)

Evalle

Python, Shell
1,387
star
102
Jan Bláha (@swift502)

swift502

C#, Python, Astro
1,328
star
103
Jakub Kulhan (@jakubkulhan)

jakubkulhan

PHP, Go, Java
1,327
star
104
David Durman (@DavidDurman)

DavidDurman

JavaScript, C, HTML
1,311
star
105
@symplify

symplify

PHP
1,306
star
106
Hynek Petrak (@HynekPetrak)

HynekPetrak

Python, C#, JavaScript
1,302
star
107
Jiri Trecak (@JiriTrecak)

JiriTrecak

Swift
1,284
star
108
FEO (@feo-cz)

feo-cz

C#, JavaScript, CSS
1,283
star
109
Ladislav Zezula (@ladislav-zezula)

ladislav-zezula

C++, C
1,238
star
110
Seznam.cz a.s. (@seznam)

seznam

JavaScript, Python, C++
1,230
star
111
Easy Coding Standard (@easy-coding-standard)

easy-coding-standard

PHP
1,226
star
112
Jan Žák (@zakjan)

zakjan

JavaScript, TypeScript, Shell
1,225
star
113
Torsten Sattler (@tsattler)

tsattler

C++, Python
1,203
star
114
QupZilla Browser (@QupZilla)

QupZilla

C++, JavaScript, PHP
1,182
star
115
Georgy Marchuk (@gmrchk)

gmrchk

JavaScript, TypeScript
1,179
star
116
Jakub Truhlář (@kubatruhlar)

kubatruhlar

Objective-C, Swift, Shell
1,176
star
117
Michael Musil (@infi-pc)

infi-pc

TypeScript, JavaScript
1,174
star
118
Tomas Tomecek (@TomasTomecek)

TomasTomecek

Python, JavaScript, Go
1,171
star
119
Roman B. (@romanbican)

romanbican

PHP
1,159
star
120
Kamil Tomšík (@cztomsik)

cztomsik

Zig, Rust, JavaScript
1,156
star
121
Step Up Labs (@step-up-labs)

step-up-labs

C#
1,154
star
122
Elastic Sea (@ElasticSea)

ElasticSea

C#, PowerShell, ShaderLab
1,132
star
123
Roman (@march08)

march08

JavaScript, TypeScript
1,119
star
124
Oleksandr Balan (@oleksandrbalan)

oleksandrbalan

Kotlin
1,113
star
125
Windy (@windycom)

windycom

JavaScript, Swift
1,112
star
126
Alexandre Vicenzi (@alexandrevicenzi)

alexandrevicenzi

Python, Go, JavaScript
1,109
star
127
Peter Lemenkov (@lemenkov)

lemenkov

C, Erlang, Shell
1,108
star
128
Vojtěch Habarta (@vojtechhabarta)

vojtechhabarta

Java, JavaScript
1,108
star
129
Roman Provazník (@Dzoukr)

Dzoukr

F#, Dockerfile
1,101
star
130
Jan Odvarko (@janodvarko)

janodvarko

JavaScript
1,096
star
131
Boris Letocha (@Bobris)

Bobris

C#, TypeScript, JavaScript
1,059
star
132
Superdesk (@superdesk)

superdesk

Python, JavaScript, TypeScript
1,059
star
133
Šimon Let (@curusarn)

curusarn

Go, Shell, Makefile
1,057
star
134
Mike (@MikeKovarik)

MikeKovarik

JavaScript, HTML
1,052
star
135
Petr Šťastný (@SoptikHa2)

SoptikHa2

Rust, C#, Python
1,027
star
136
@Kdyby

Kdyby

PHP
1,026
star
137
David Duong (@dqbd)

dqbd

JavaScript, Java, TypeScript
1,021
star
138
Marek Veselý (@notmarek)

notmarek

Rust, JavaScript, Python
1,014
star
139
Tomáš Iser (@tomasiser)

tomasiser

C++, Vim Script, Java
1,007
star
140
Tomas Krejci (@tomas789)

tomas789

C++, Python, Swift
1,000
star
141
Multi-robot Systems (MRS) group at Czech Technical University in Prague (@ctu-mrs)

ctu-mrs

C++, Shell, Python
1,000
star
142
Tomáš Nekvinda (@Tomiinek)

Tomiinek

Python, C++, C#
996
star
143
Jakub Arnold (@darthdeus)

darthdeus

Ruby, Haskell, Rust
988
star
144
Filip Halaxa (@halaxa)

halaxa

PHP
983
star
145
Petr Havlena (@havlenapetr)

havlenapetr

C, Java, C++
980
star
146
Riki Fridrich (@fczbkk)

fczbkk

JavaScript, CoffeeScript, Vue
966
star
147
Vojtěch Boček (@Tasssadar)

Tasssadar

C++, C, Java
952
star
148
Tomáš Martykán (@martykan)

martykan

Java, JavaScript, CSS
952
star
149
Mariusz Kotas (@Marfusios)

Marfusios

C#, TypeScript, HTML
949
star
150
Jiří Šebek (@jirsbek)

jirsbek

PHP, CSS
940
star
151
Jakub Scholz (@scholzj)

scholzj

Java, Shell, HCL
938
star
152
Tomas Petricek (@tpetricek)

tpetricek

F#, HTML, TeX
928
star
153
Martin Tůma (@tumic0)

tumic0

C++, C, Smarty
925
star
154
RIGANTI s.r.o. (@riganti)

riganti

C#, JavaScript, TypeScript
923
star
155
David Rosca (@nowrep)

nowrep

C++, C, Lua
921
star
156
Dmitry Dygalo (@Stranger6667)

Stranger6667

Python, Rust
915
star
157
Adam Horacek (@adamhoracek)

adamhoracek

Objective-C
910
star
158
Erdin Kacan (@Ludomancer)

Ludomancer

C#, CSS, Python
902
star
159
Ondřej Nepožitek (@OndrejNepozitek)

OndrejNepozitek

C#, JavaScript
901
star
160
Ackee (@AckeeCZ)

AckeeCZ

TypeScript, Kotlin, Swift
900
star
161
Petr Ruzicka (@ruzickap)

ruzickap

Shell, Dockerfile, HCL
897
star
162
Jirka Borovec (@Borda)

Borda

Python, Jupyter Notebook, Dockerfile
890
star
163
@chylex

chylex

Java, Kotlin, C#
890
star
164
Bastl Instruments (@bastl-instruments)

bastl-instruments

C++, Arduino, C
885
star
165
Fork.dev (@fork-dev)

fork-dev

885
star
166
Martin Hochel (@Hotell)

Hotell

TypeScript, JavaScript
882
star
167
Zonky (@zonkyio)

zonkyio

JavaScript, Java, Shell
876
star
168
Nextras (@nextras)

nextras

PHP, JavaScript, Kotlin
874
star
169
Sourcefabric (@sourcefabric)

sourcefabric

PHP
871
star
170
Tomas Vondra (@tvondra)

tvondra

C, PLpgSQL, Shell
868
star
171
Ondřej Surý (@oerdnj)

oerdnj

C, Shell, HTML
860
star
172
Alex Devero (@alexdevero)

alexdevero

TypeScript, JavaScript, HTML
858
star
173
Martin Franc (@francma)

francma

Shell, Meson, CSS
850
star
174
Radek Vymětalík (@RadekVyM)

RadekVyM

C#, JavaScript, CSS
846
star
175
Martin Allien (@AllienWorks)

AllienWorks

CSS, Shell
840
star
176
Marek Fořt (@fortmarek)

fortmarek

Swift, Java, JavaScript
839
star
177
Dan R. (@deathkiller)

deathkiller

C++, C#, C
838
star
178
Sasha Aliashkevich (@sasha-alias)

sasha-alias

Python, CSS, JavaScript
835
star
179
Honza Král (@honzakral)

honzakral

Python
822
star
180
Slush (@slush0)

slush0

Python, JavaScript, PHP
812
star
181
Charles Assunção (@assuncaocharles)

assuncaocharles

TypeScript, JavaScript, C#
810
star
182
Michal Busta (@MichalBusta)

MichalBusta

Python, C++, C
806
star
183
Adam Schubert (@Salamek)

Salamek

Python, PHP, TypeScript
804
star
184
Petr Medek (@me2d13)

me2d13

Pascal, Python, C++
803
star
185
Tomas Vymazal (@MyOwnClone)

MyOwnClone

C#, C++, Python
792
star
186
David Schovanec (@schovi)

schovi

JavaScript, Ruby, Crystal
792
star
187
BUT Speech@FIT (@BUTSpeechFIT)

BUTSpeechFIT

Python, Shell, Jupyter Notebook
791
star
188
Luca D'Alberti (@dalu93)

dalu93

Swift, JavaScript, Objective-C
790
star
189
Filip Němeček (@nemecek-filip)

nemecek-filip

Swift, HTML, CSS
786
star
190
@rkadlec

rkadlec

Jupyter Notebook, Python
768
star
191
Filip Matzner (@FloopCZ)

FloopCZ

Shell
765
star
192
Matus Novak (@matusnovak)

matusnovak

C++, C, Python
758
star
193
Petr Vostřel (@pisi)

pisi

JavaScript
754
star
194
Nemanja Mijailovic (@Metalnem)

Metalnem

C#, Go, JavaScript
753
star
195
Ciaran Fisher (@ciribob)

ciribob

Lua, C#, C++
749
star
196
Martin Pecka (@peci1)

peci1

Java, C++, JavaScript
741
star
197
Vaclav (@bruxy70)

bruxy70

Python, C++, Jupyter Notebook
737
star
198
Czech Technical University (@cvut)

cvut

Python, Java, JavaScript
731
star
199
ashlen (@thesadru)

thesadru

Python, HTML, C#
705
star
200
@Crauzer

Crauzer

C#, Rust, TypeScript
698
star

Statistics

By location

Prague 64.1%
Brno 21.2%
Ostrava 2.1%
Pilsen 1.5%
Liberec 1.0%
Other 10.1%

By programing language

JavaScript
 		16.0%
Python
 		14.8%
C++
 		8.3%
Java
 		8.1%
PHP
 		8.0%
Other 		44.8%

World rating by programing language (country/rank)

Shell
 		20
Dockerfile
 		20
C
 		24
C++
 		26
Rust
 		26

* More analytics for signed in users.