🇨🇿 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

401
Jakub Mandula (@mandulaj)

mandulaj

JavaScript, C++, Python
316
star
402
Sec51 (@sec51)

sec51

Go, JavaScript
315
star
403
Jonathan Worthington (@jnthn)

jnthn

Raku, Perl 6, Perl
315
star
404
Packit (@packit)

packit

Python, TypeScript, Jupyter Notebook
314
star
405
Tomáš Kudýnek (@tomiis4)

tomiis4

Lua, Go, C
313
star
406
Martin Král (@MartinKral)

MartinKral

ShaderLab, JavaScript, TypeScript
312
star
407
David Kudera (@davidkudera)

davidkudera

JavaScript, TypeScript
310
star
408
Robin Bortlík (@robinbortlik)

robinbortlik

Ruby, JavaScript, CoffeeScript
310
star
409
Marek Mauder (@galfar)

galfar

Pascal, Java, JavaScript
310
star
410
Jan Dryk (@uxsoft)

uxsoft

F#, C#
309
star
411
David Vavra (@davidvavra)

davidvavra

Java, Kotlin, Gherkin
307
star
412
Jakub Skořepa (@jskorepa)

jskorepa

C++, TypeScript
307
star
413
Jakub Cabal (@jakubcabal)

jakubcabal

VHDL, Lua
304
star
414
Apify Projects (@apify-projects)

apify-projects

TypeScript, JavaScript, Python
303
star
415
Andrej Jurkin (@AndrejJurkin)

AndrejJurkin

JavaScript, Java, Swift
303
star
416
Ondrej Novak (@ondra-novak)

ondra-novak

C++, JavaScript, C
302
star
417
Eduard Tsech (@edtsech)

edtsech

Clojure, Ruby, JavaScript
302
star
418
Robo@FIT, Faculty of Information Technology, Brno University of Technology (@robofit)

robofit

C++, Python, C#
302
star
419
@Vuka951

Vuka951

JavaScript, Python
302
star
420
Vinzenz 'evilissimo' Feenstra  (@vinzenz)

vinzenz

C++, C, Python
302
star
421
Denys Khanzhiyev (@xdenser)

xdenser

JavaScript, C
299
star
422
@tajnymag

tajnymag

TypeScript, JavaScript
299
star
423
Motaki Maddane (@kronik3r)

kronik3r

CSS, JavaScript, HTML
299
star
424
Sean Straus (@scstraus)

scstraus

JavaScript
298
star
425
Pematon, s.r.o. (@pematon)

pematon

PHP, Less
298
star
426
Jan Kučera (@hclivess)

hclivess

Python, Tcl, HTML
298
star
427
Jiří Hýbek (@jirihybek)

jirihybek

TypeScript, JavaScript, C#
297
star
428
Tomáš Kolinger (@kolinger)

kolinger

PHP, Python, JavaScript
295
star
429
Matej Sychra (@suculent)

suculent

C++, JavaScript, Ruby
295
star
430
Juraj Michálek (@georgik)

georgik

Rust, C, JavaScript
295
star
431
Danol (@CZDanol)

CZDanol

C++, C#, Python
294
star
432
Kepi (@kepi)

kepi

Shell, Python, JavaScript
294
star
433
Vladimir Botka (@vbotka)

vbotka

Jinja, Shell, Python
292
star
434
Tomas Mudrunka (@Harvie)

Harvie

C, PHP, Shell
292
star
435
Miloslav Číž #movingToGitLab (@drummyfish)

drummyfish

Python, C++, C
292
star
436
Nebula Broadcast (@nebulabroadcast)

nebulabroadcast

Python, Shell
291
star
437
Artem Savkov (@sm00th)

sm00th

C, Python
291
star
438
Jiří Setnička (@setnicka)

setnicka

Go, Python, PHP
290
star
439
Pavel Sklenář (@pajikos)

pajikos

Java, Python, Smarty
289
star
440
Filip Procházka (@fprochazka)

fprochazka

PHP, JavaScript, Java
289
star
441
</BRJ> core packages (@baraja-core)

baraja-core

PHP, TypeScript, JavaScript
289
star
442
@nexpid

nexpid

TypeScript, JavaScript, Lua
288
star
443
Denis Rojcyk (@rojcyk)

rojcyk

TypeScript
288
star
444
Valentin Gologuzov (@evilkost)

evilkost

Python, Ruby, Shell
287
star
445
Adam Štrauch (@by-cx)

by-cx

Python, PHP, CSS
287
star
446
Ondřej Kunc (@OndrejKunc)

OndrejKunc

Dart, C#
287
star
447
Michal Fojtik (@mfojtik)

mfojtik

Go, Ruby, Shell
287
star
448
Purple Technology (@purple-technology)

purple-technology

TypeScript, JavaScript, C#
287
star
449
Travis (@travisdoor)

travisdoor

C
287
star
450
FlowUp (@flowup)

flowup

TypeScript, Go, JavaScript
286
star
451
Vitex Software (@VitexSoftware)

VitexSoftware

PHP, Shell, Python
286
star
452
Lukáš Zahradník (@LukasZahradnik)

LukasZahradnik

Python, Tcl, R
286
star
453
Jiří Nádovrník (@nadvornix)

nadvornix

Python, HTML, Mathematica
284
star
454
Pavel Dovhomilja (@pdovhomilja)

pdovhomilja

TypeScript, JavaScript
283
star
455
Martin Liška (@marxin)

marxin

Python, Makefile, C++
282
star
456
Jonas Serych (@serycjon)

serycjon

Python, Common Lisp
282
star
457
Vojtěch Dobeš (@vojtech-dobes)

vojtech-dobes

PHP, JavaScript
280
star
458
Averrin (@averrin)

averrin

JavaScript, C++, Python
279
star
459
Václav Klecanda (@vencax)

vencax

Python, JavaScript, CoffeeScript
278
star
460
Pavel Pscheidl (@Pscheidl)

Pscheidl

Java, Rust
277
star
461
Břetislav Wajtr (@bwajtr)

bwajtr

Java, Dockerfile
277
star
462
Jan Vorisek (@odditica)

odditica

Python, Game Maker Language, NSIS
276
star
463
Lundegaard a.s. (@lundegaard)

lundegaard

JavaScript, Java, Shell
276
star
464
Richard Pecl (@peclik)

peclik

JavaScript, OpenSCAD
275
star
465
Jan K (@krajj7)

krajj7

C++, Clojure
275
star
466
Petr Šplíchal (@psss)

psss

Python, Perl, Shell
273
star
467
Martin Styk (@MartinStyk)

MartinStyk

Kotlin, Java, Ruby
272
star
468
Lukáš Němec (@lunemec)

lunemec

Go, Python, Rust
272
star
469
Martin Malý (@maly)

maly

JavaScript, HTML, PHP
270
star
470
Filip Molcik (@molcik)

molcik

HTML, Python, Swift
270
star
471
@TheNetworg

TheNetworg

PHP, PowerShell, Python
269
star
472
RoboticsBrno (RobotikaBrno) (@RoboticsBrno)

RoboticsBrno

C++, C, Java
269
star
473
Alexander Sosedkin (@t184256)

t184256

Python, C, Nix
268
star
474
Pavel Lang (@langpavel)

langpavel

JavaScript, TypeScript, Assembly
267
star
475
@rdk

rdk

Groovy
267
star
476
Marek Fišera (@maraf)

maraf

C#, Java, JavaScript
265
star
477
Vadim Rutkovsky (@vrutkovs)

vrutkovs

Shell, Go, Python
265
star
478
Sveinung (@sveinungf)

sveinungf

C#, Java, C
264
star
479
Ján Regeš (@janreges)

janreges

PHP, TypeScript, Svelte
264
star
480
Games and Simulations Research Group (@Games-and-Simulations)

Games-and-Simulations

Python, C++, HTML
262
star
481
Vladimir Orany (@musketyr)

musketyr

Groovy, Java, JavaScript
260
star
482
Martin Zikmund (@MartinZikmund)

MartinZikmund

C#, JavaScript
260
star
483
Rastislav Mirek (@RastislavMirek)

RastislavMirek

Swift
259
star
484
Pavel (@DrrDom)

DrrDom

Python, Jupyter Notebook, R
259
star
485
DX Heroes (@DXHeroes)

DXHeroes

TypeScript, Swift, JavaScript
258
star
486
Luboš Doležel (@LubosD)

LubosD

C++, Go, OpenSCAD
256
star
487
Daniel Hryzbil (@ccomrade)

ccomrade

C++
255
star
488
Sorki (@sorki)

sorki

Python, Haskell, Shell
252
star
489
@ihmpavel

ihmpavel

TypeScript
251
star
490
Shmele (@butorov)

butorov

Python
250
star
491
Jaroslav Bereza (@jardicc)

jardicc

TypeScript, JavaScript
250
star
492
Jaroslav Tulach (@jtulach)

jtulach

Java, CSS, JavaScript
250
star
493
@CzechPMDevs

CzechPMDevs

PHP, C#
249
star
494
Vojtěch Sázel (@wojta)

wojta

Kotlin, TypeScript, JavaScript
249
star
495
Dan Vrátil (@danvratil)

danvratil

C++, Clean, Python
249
star
496
Martin Sikora (@martinsik)

martinsik

TypeScript, Python, Dart
247
star
497
K3A (@k3a)

k3a

C, C++, Go
246
star
498
Michal Jankovič (@MiSo1289)

MiSo1289

C++, Python, CMake
245
star
499
TREZOR Graveyard (@trezor-graveyard)

trezor-graveyard

JavaScript, C, C++
244
star
500
Valentin Radulescu (@RadValentin)

RadValentin

JavaScript, HTML, ActionScript
244
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.