🇨🇿 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

201
Sergei ZH (@quentincaffeino)

quentincaffeino

GDScript, JavaScript, Shell
689
star
202
Charlesmudy (@charlesmudy)

charlesmudy

HTML
688
star
203
Webscope.io (@webscopeio)

webscopeio

TypeScript, JavaScript, Python
686
star
204
Tomas Sedovic (@tomassedovic)

tomassedovic

Python, Rust, CoffeeScript
683
star
205
Tomas Barton (@deric)

deric

Ruby, Java, Shell
671
star
206
Anton Skorochod (@kanocz)

kanocz

Go, C++, C
663
star
207
Institute of Formal and Applied Linguistics – Dialogue Systems Group (@UFAL-DSG)

UFAL-DSG

Python, C, Shell
661
star
208
Tomas Vojir (@vojirt)

vojirt

C++, Python, MATLAB
659
star
209
Tomáš Znamenáček (@zoul)

zoul

Objective-C, Swift, Ruby
657
star
210
Fragaria, s.r.o. (@fragaria)

fragaria

JavaScript, Python, TypeScript
655
star
211
Jan Forst (@darosh)

darosh

JavaScript, HTML, Vue
652
star
212
Tomáš Hübelbauer (@TomasHubelbauer)

TomasHubelbauer

JavaScript, Markdown, TypeScript
652
star
213
Ondrej Texler (@OndrejTexler)

OndrejTexler

C++, Jupyter Notebook
650
star
214
Al (@aorumbayev)

aorumbayev

Python, TypeScript, JavaScript
644
star
215
Bohemia Interactive (@BohemiaInteractive)

BohemiaInteractive

JavaScript, C, C++
643
star
216
@Kentico

Kentico

C#, JavaScript, TypeScript
641
star
217
Adaptech s.r.o. (@adaptech-cz)

adaptech-cz

C
640
star
218
Jakub Hlusička (@Limeth)

Limeth

Rust, Java, TeX
640
star
219
Midori Kocak (@midorikocak)

midorikocak

PHP, HTML, JavaScript
634
star
220
Pyvec, z.s. (@pyvec)

pyvec

Python, HTML, Jupyter Notebook
632
star
221
David Frnoch (@lnxcz)

lnxcz

TypeScript, Python, Rust
626
star
222
Talsec (@talsec)

talsec

C, Kotlin
624
star
223
Josef Pihrt (@josefpihrt)

josefpihrt

C#, JavaScript, Vim Snippet
616
star
224
Lukáš Petr (@LukasCZ)

LukasCZ

Objective-C, Swift
616
star
225
Josef Gajdusek (@atx)

atx

Python, C, C++
615
star
226
Pavel H (@slowscript)

slowscript

HTML, C#, Java
606
star
227
@Showmax

Showmax

Python, Swift, Go
606
star
228
Petr Zemek (@s3rvac)

s3rvac

Python, Vim Script, C++
602
star
229
Tom Pažourek (@tompazourek)

tompazourek

C#
600
star
230
Melown Technologies, SE (@melowntech)

melowntech

C++, C#, Makefile
599
star
231
Tomas (@viktomas)

viktomas

Go, JavaScript, Ruby
590
star
232
Martin Endler (@pokusew)

pokusew

JavaScript, Makefile, TypeScript
589
star
233
Jan Muller (@biokys)

biokys

Java, JavaScript
585
star
234
Jan Kuča (@jankuca)

jankuca

JavaScript, PHP, CoffeeScript
584
star
235
Yevhen Kuzmovych (@kuzmoyev)

kuzmoyev

Jupyter Notebook, Python, TeX
577
star
236
edgedesign/phpqa (@EdgedesignCZ)

EdgedesignCZ

PHP, XSLT
572
star
237
Otto DIY (@OttoDIY)

OttoDIY

C++, JavaScript, C
570
star
238
@Cvolton

Cvolton

C++, PHP, Python
567
star
239
@djdagovs

djdagovs

Shell, PHP, HTML
565
star
240
Ondřej Hruška (@MightyPork)

MightyPork

C, JavaScript, Python
565
star
241
Martin Kluska (@pionl)

pionl

PHP, JavaScript, Dockerfile
563
star
242
Tomas Korcak (@korczis)

korczis

Ruby, JavaScript, C
561
star
243
@GoodAI

GoodAI

Python, C#, Jupyter Notebook
557
star
244
Martin Cohen (@martincohen)

martincohen

C
549
star
245
Martin Majlis (@martin-majlis)

martin-majlis

Python, Perl, PHP
546
star
246
@ngParty

ngParty

JavaScript, TypeScript, HTML
542
star
247
Martin Šťovíček (@stovmascript)

stovmascript

JavaScript
542
star
248
Tee (@teeteeteeteetee)

teeteeteeteetee

C#, JavaScript, Shell
532
star
249
Daniel Fiser (@danfis)

danfis

C, C++, Python
531
star
250
HAVIT (@havit)

havit

C#
529
star
251
Jakub Čábera (@Ash258)

Ash258

PowerShell, Java, Shell
528
star
252
@FlowCrypt

FlowCrypt

TypeScript, Swift, Shell
525
star
253
Tomáš Báča (@klaxalk)

klaxalk

Shell, C, C++
525
star
254
Martin Janiczek (@Janiczek)

Janiczek

Elm, HTML, JavaScript
521
star
255
Jan Ivanecky (@janivanecky)

janivanecky

Python, C++, C
520
star
256
@MartinD-CZ

MartinD-CZ

Makefile, C++, HTML
519
star
257
Ondrej Kokes (@kokes)

kokes

Python, Jupyter Notebook, Go
519
star
258
Mustafa Ozhan (@mustafaozhan)

mustafaozhan

Kotlin, Swift, Shell
519
star
259
Denis Zykov (@deniszykov)

deniszykov

C#
517
star
260
Jan Breuer (@j123b567)

j123b567

C, C#, Java
516
star
261
Jølly Good (@good-lly)

good-lly

JavaScript, Python, HTML
510
star
262
Petr Broz (@petrbroz)

petrbroz

JavaScript, TypeScript, C#
507
star
263
@DEVSENSE

DEVSENSE

C#, PHP, Dockerfile
505
star
264
Yauhen Babakhin (@ybabakhin)

ybabakhin

Python, Jupyter Notebook
501
star
265
Milos Kozak (@MilosKozak)

MilosKozak

Java
501
star
266
@Martyx00

Martyx00

Python
500
star
267
Vojta Stavik (@VojtaStavik)

VojtaStavik

Swift, Shell, JavaScript
499
star
268
Tonda Fischer (@raven2cz)

raven2cz

Lua, QML, Shell
493
star
269
Joan Bono (@joanbono)

joanbono

Go, Shell, Python
491
star
270
Jaromír (@jaromiru)

jaromiru

Python, MATLAB
491
star
271
Alexey Ardov (@ardov)

ardov

TypeScript, CSS
489
star
272
LMC s.r.o. (@lmc-eu)

lmc-eu

PHP, JavaScript, TypeScript
488
star
273
Jakub Martyčák (@rusel1989)

rusel1989

Objective-C
488
star
274
Martin Dráb (@MartinDrab)

MartinDrab

C, Pascal
487
star
275
Keboola (@keboola)

keboola

PHP, JavaScript, Python
484
star
276
BART! (@bartholomej)

bartholomej

TypeScript, JavaScript, PHP
483
star
277
Jakub Kinst (@jakubkinst)

jakubkinst

Java, PHP, JavaScript
480
star
278
Petr Viktorin (@encukou)

encukou

Python, C, C++
475
star
279
Mews (@MewsSystems)

MewsSystems

Dart, C#, Kotlin
473
star
280
Milan Pavlik (@easyCZ)

easyCZ

Go, JavaScript, TypeScript
470
star
281
Dan Homola (@no23reason)

no23reason

TypeScript, JavaScript
469
star
282
Adam Uhlíř (@AuHau)

AuHau

Python, JavaScript, Go
469
star
283
@Kibo

Kibo

JavaScript, Java, Gosu
467
star
284
Vít Starý Novotný (@Witiko)

Witiko

TeX, Shell, Python
466
star
285
Roman Samec (@rsamec)

rsamec

JavaScript, TypeScript, CSS
465
star
286
Roman Parak (@rparak)

rparak

Python, C#, C
465
star
287
Vojtěch Jungmann (@EETagent)

EETagent

C, Vala, Dart
461
star
288
Dalibor Kundrat (@damikun)

damikun

TypeScript, C#
457
star
289
API Hogs (@api-hogs)

api-hogs

Elixir, JavaScript
454
star
290
Zdenek Svoboda (@zsvoboda)

zsvoboda

Jupyter Notebook, Python, JavaScript
443
star
291
Michal Uřičář (@uricamic)

uricamic

SCSS, MATLAB, Jupyter Notebook
439
star
292
Lubomir Rintel (@lkundrak)

lkundrak

C, Perl, Shell
433
star
293
Jonáš Kulhánek (@jkulhanek)

jkulhanek

Python, Jupyter Notebook, Haskell
432
star
294
Ondřej Ondryáš (@ondryaso)

ondryaso

Python, C, Java
432
star
295
@kracejic

kracejic

CSS, CMake, C++
431
star
296
Radek Kyselý (@kysely)

kysely

JavaScript, CoffeeScript, Python
425
star
297
Vladan Kudláč (@kudlav)

kudlav

JavaScript, PHP, TeX
423
star
298
@TeskaLabs

TeskaLabs

Python, JavaScript, Java
423
star
299
Honza Brázdil (@janinko)

janinko

Java, Pascal, Prolog
418
star
300
HARDWARIO (@hardwario)

hardwario

C, Python, JavaScript
417
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

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