🇨🇿 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

301
Michal Uřičář (@uricamic)

uricamic

Jupyter Notebook, SCSS, MATLAB
439
star
302
Ondřej Ondryáš (@ondryaso)

ondryaso

Python, C, Java
437
star
303
Radek Vít (@radekvit)

radekvit

Rust, C++
436
star
304
Martin Fleischmann (@martinfleis)

martinfleis

Jupyter Notebook, JavaScript, Python
435
star
305
Lubomir Rintel (@lkundrak)

lkundrak

C, Perl, Shell
433
star
306
Jonáš Kulhánek (@jkulhanek)

jkulhanek

Python, C, Haskell
432
star
307
Löwenware (@lowenware)

lowenware

Rust, C, JavaScript
428
star
308
Radek Podgorny (@rpodgorny)

rpodgorny

Python, C, Shell
427
star
309
Jiří Bětuňák (@KinDR007)

KinDR007

C++
426
star
310
Radek Kyselý (@kysely)

kysely

JavaScript, CoffeeScript, Jupyter Notebook
425
star
311
Bohumír Zámečník (@bzamecnik)

bzamecnik

Python, Java, C#
424
star
312
Vladan Kudláč (@kudlav)

kudlav

PHP, HTML, Kotlin
423
star
313
HARDWARIO (@hardwario)

hardwario

C, Python, JavaScript
423
star
314
Honza Brázdil (@janinko)

janinko

Java, Pascal, Prolog
422
star
315
Rado Sohlich (@sohlich)

sohlich

Go, Java, TypeScript
421
star
316
Adam Heinrich (@adamheinrich)

adamheinrich

C, Makefile, Java
419
star
317
Michal Altair Valášek (@ridercz)

ridercz

C#, C++, OpenSCAD
418
star
318
Vojtech Ruzicka (@vojtechruz)

vojtechruz

Java, Python, MDX
415
star
319
Roman Peshkov (@rpeshkov)

rpeshkov

TypeScript, Shell, C
414
star
320
Jan Procházka (@jprochazk)

jprochazk

Rust, TypeScript, JavaScript
414
star
321
Rikudou_Sage (@RikudouSage)

RikudouSage

PHP, QML, C++
413
star
322
Pavel S (@pilotak)

pilotak

C++, Python, C
413
star
323
Miroslav Šulc (@fordfrog)

fordfrog

Java
413
star
324
Richard Sustek (@Enngage)

Enngage

TypeScript, CSS, JavaScript
411
star
325
Eugen Pechanec (@consp1racy)

consp1racy

Java, C#
410
star
326
Simon Podlipsky (@simPod)

simPod

PHP, TypeScript
408
star
327
statica (@staticafi)

staticafi

Python, C++, C#
405
star
328
@mapshakers

mapshakers

JavaScript, CSS, Scheme
403
star
329
Ondrej Sika (@ondrejsika)

ondrejsika

HCL, Python, Makefile
402
star
330
Ondřej Kupka (@tchap)

tchap

Go, Prolog, Shell
399
star
331
Jan Marek (@janmarek)

janmarek

PHP, JavaScript, Java
399
star
332
Pavel (@nadlabak)

nadlabak

C, Java, Python
398
star
333
Matej Knopp (@knopp)

knopp

Dart, Objective-C
396
star
334
Tomáš Souček (@soCzech)

soCzech

Python, TeX, Jupyter Notebook
395
star
335
Jan Blaha (@pofider)

pofider

JavaScript, C#
394
star
336
Jiri Hnidek (@jirihnidek)

jirihnidek

C, Python, JavaScript
393
star
337
Oleksandr Fediashov (@layershifter)

layershifter

JavaScript, PHP, TypeScript
391
star
338
Jan Tojnar (@jtojnar)

jtojnar

JavaScript, Python, Nix
390
star
339
Josef Richter (@josefrichter)

josefrichter

JavaScript, Ruby, CSS
387
star
340
GoodData (@gooddata)

gooddata

JavaScript, Python, TypeScript
386
star
341
Anton Gunov (@antongunov)

antongunov

JavaScript, Vue
386
star
342
Honza Bittner (@tenhobi)

tenhobi

Dart, TeX, C++
385
star
343
ITDS Consulting, s.r.o. (@itds-consulting)

itds-consulting

Python, C++, Java
384
star
344
Roman Ožana (@OzzyCzech)

OzzyCzech

PHP, JavaScript, Shell
384
star
345
@ScreamingSandals

ScreamingSandals

Java, HTML
382
star
346
Josef Pospíšil (@pepe)

pepe

Ruby, JavaScript, HTML
379
star
347
Dmitry Hrabrov (@DeXP)

DeXP

C, Ren'Py, C#
378
star
348
Roman Jámbor (@Hookyns)

Hookyns

TypeScript, C#, JavaScript
377
star
349
František Milt (@TheLazyTomcat)

TheLazyTomcat

Pascal, Batchfile
375
star
350
Adam Svoboda (@IGPenguin)

IGPenguin

Kotlin, JavaScript, Java
375
star
351
Karel Vesely (@KarelVesely84)

KarelVesely84

Python
374
star
352
Alois Bělaška (@abelaska)

abelaska

JavaScript, Java, Perl
373
star
353
rtuna (@rtunazzz)

rtunazzz

Python, HTML, Go
373
star
354
Michal Čihař (@nijel)

nijel

Python, Shell, C
370
star
355
Martin Hub (@hubmartin)

hubmartin

C, Python, JavaScript
370
star
356
Radek Bartyzal (@BartyzalRadek)

BartyzalRadek

Jupyter Notebook, Python, TeX
369
star
357
Tomáš Karabela (@tkarabela)

tkarabela

Python, Jupyter Notebook, C++
366
star
358
Martin Chodur (@FUSAKLA)

FUSAKLA

Go, TypeScript, Ruby
364
star
359
Mikulas Dite (@Mikulas)

Mikulas

PHP, C, C++
363
star
360
Michal Mroček (@mroczis)

mroczis

Java, Elm, Kotlin
361
star
361
Jovan Lanik (@jovanlanik)

jovanlanik

C, Lua, Shell
361
star
362
Roman Krejčík (@farin)

farin

JavaScript, Vue, Python
360
star
363
manGoweb s.r.o. (@manGoweb)

manGoweb

Swift, JavaScript, TypeScript
358
star
364
Jiří Petruželka (@NoxArt)

NoxArt

Python, C++
357
star
365
iXit Group (@iXit)

iXit

C
355
star
366
Tomas Holas (@tomaash)

tomaash

JavaScript, Ruby, TypeScript
355
star
367
Daniel Suchý (@Nodonisko)

Nodonisko

TypeScript, JavaScript
354
star
368
Jakub Nei (@JakubNei)

JakubNei

C#, SQF, C++
354
star
369
Jiří Vrba (@jirkavrba)

jirkavrba

Java, Elixir, TypeScript
352
star
370
Petr Marek (@mreq)

mreq

Python, JavaScript, CSS
350
star
371
Lukáš Zapletal (@lzap)

lzap

Shell, Go, Ruby
350
star
372
Matěj Šmíd (@smidm)

smidm

Python, C++, Jupyter Notebook
350
star
373
Daniel Uhříček (@danielpoliakov)

danielpoliakov

C++, Python, Shell
349
star
374
Jirka Pinkas (@jirkapinkas)

jirkapinkas

Java, Shell, CSS
348
star
375
Marek Čermák (@CermakM)

CermakM

Python, JavaScript, C++
347
star
376
Péhápkaři (@pehapkari)

pehapkari

HTML, PHP
343
star
377
Vojtěch Vondra (@vvondra)

vvondra

JavaScript, Java, C#
343
star
378
Marek Sebera (@smarek)

smarek

Java, PHP, Python
342
star
379
Jakub Mikulas (@JackuB)

JackuB

JavaScript, HTML, Java
341
star
380
Jiri Pospisil (@jiripospisil)

jiripospisil

JavaScript, Java, Shell
340
star
381
Petr Houška (@petrroll)

petrroll

C#, Python, HTML
339
star
382
@Spinoco

Spinoco

Scala
338
star
383
@Sanqui

Sanqui

Python, Assembly, TypeScript
338
star
384
Roman Schejbal (@romanschejbal)

romanschejbal

JavaScript, Rust, TypeScript
336
star
385
Neitri (@netri)

netri

ShaderLab, Python, C#
336
star
386
Tomáš Nožička (@tnozicka)

tnozicka

Go, Groovy, Makefile
334
star
387
Networks and Distributed Systems (@nesfit)

nesfit

Python, C#, Dockerfile
334
star
388
Miha Zupan (@MihaZupan)

MihaZupan

C#
332
star
389
Petr Jašíček (@pjasicek)

pjasicek

C++, Python, C#
332
star
390
Wultra (@wultra)

wultra

Java, Swift, TypeScript
331
star
391
Martin Vidner (@mvidner)

mvidner

Ruby, Shell, Python
330
star
392
Miroslav Suchý (@xsuchy)

xsuchy

Python, Shell, JavaScript
327
star
393
Tomáš Linhart (@TomasLinhart)

TomasLinhart

Swift, C#, C++
326
star
394
Contember (@contember)

contember

TypeScript, PHP, Dockerfile
323
star
395
Petr Dlouhý (@PetrDlouhy)

PetrDlouhy

Python, Shell, XSLT
323
star
396
Martin Rocek (@silencesys)

silencesys

JavaScript, Vue, TypeScript
323
star
397
Hlídač Státu, z.ú. (@HlidacStatu)

HlidacStatu

C#, JavaScript, HTML
322
star
398
Mukesh (@muke1908)

muke1908

TypeScript, JavaScript
320
star
399
Matěj Štágl (@lofcz)

lofcz

C#, Game Maker Language, JavaScript
319
star
400
Matěj Kašpar Jirásek (@mkj-is)

mkj-is

Swift, Processing, C#
319
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.