🇨🇿 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

6,143

Organizations

828

Repositories

40,406

Top Rank

Dockerfile, Shell, C

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

Top Contributors

1
Avast (@avast)

avast

C++, Scala, Java
19,180
star
2
Jakub Onderka (@JakubOnderka)

JakubOnderka

PHP, Rust, JavaScript
13,198
star
3
Prusa3D (@prusa3d)

prusa3d

HTML, C, C++
11,910
star
4
Giampaolo Rodola (@giampaolo)

giampaolo

Python, HTML
11,591
star
5
Photopea (@photopea)

photopea

JavaScript, HTML
10,467
star
6
Ondřej Žára (@ondras)

ondras

JavaScript, TypeScript, HTML
10,067
star
7
Jan Vlnas (@jnv)

jnv

JavaScript, Ruby, HTML
9,047
star
8
Filip Skokan (@panva)

panva

JavaScript, TypeScript
8,541
star
9
Josef Nemec (@JosefNemec)

JosefNemec

C#, PowerShell, HTML
8,379
star
10
Jan Pochyla (@jpochyla)

jpochyla

Rust, JavaScript, C
7,798
star
11
Jakub Vrána (@vrana)

vrana

PHP, JavaScript
7,073
star
12
Farkhod Sadykov (@TheR1D)

TheR1D

Python
6,732
star
13
Catalin Miron (@catalinmiron)

catalinmiron

JavaScript, TypeScript, Objective-C
6,571
star
14
Vladimír Vondruš (@mosra)

mosra

C++, Shell, C
6,467
star
15
Trezor (@trezor)

trezor

Python, JavaScript, C
6,223
star
16
Martin Dvorak (@dvorka)

dvorka

Java, C++, C
5,949
star
17
Filip Krikava (@fikovnik)

fikovnik

Shell, Python, Objective-C
5,756
star
18
Jan Kotek (@jankotek)

jankotek

Java, Kotlin, HTML
5,391
star
19
Kamil Vavra (@vavkamil)

vavkamil

Python, HTML, PHP
4,974
star
20
Václav Slavík (@vslavik)

vslavik

C++, Python, Makefile
4,940
star
21
@Disassembler0

Disassembler0

Python, PHP, C#
4,923
star
22
Pavan Kumar Sunkara (@pksunkara)

pksunkara

JavaScript, Rust, HTML
4,859
star
23
Petr Beneš (@wbenny)

wbenny

C, C++, CMake
4,830
star
24
Marek Šottl (@sottlmarek)

sottlmarek

Python, C, Ruby
4,745
star
25
Viktor Chlumský (@Chlumsky)

Chlumsky

C++, JavaScript, C
4,373
star
26
Samuel Tulach (@SamuelTulach)

SamuelTulach

C++, C#, C
4,349
star
27
Jan Škoruba (@skoruba)

skoruba

C#, TypeScript
4,252
star
28
client IO (@clientIO)

clientIO

JavaScript, TypeScript, Svelte
4,223
star
29
Matus Goljer (@Fuco1)

Fuco1

Emacs Lisp, Haskell, Shell
4,188
star
30
Jakub Jirutka (@jirutka)

jirutka

Shell, Java, Ruby
4,128
star
31
Jakub Beránek (@Kobzol)

Kobzol

C++, Python, Rust
4,051
star
32
Lingui (@lingui)

lingui

TypeScript, JavaScript, Rust
4,013
star
33
Weblate (@WeblateOrg)

WeblateOrg

Python, Shell, Makefile
4,007
star
34
Karel Minarik (@karmi)

karmi

Ruby, JavaScript, Go
3,975
star
35
Patrik Simek (@patriksimek)

patriksimek

CoffeeScript, JavaScript, PLpgSQL
3,864
star
36
Filip Hracek (@filiph)

filiph

Dart, JavaScript, HTML
3,734
star
37
Jindra Petřík (@jindrapetrik)

jindrapetrik

Java, ActionScript, C++
3,630
star
38
Source (@madebysource)

madebysource

JavaScript, CoffeeScript, ActionScript
3,598
star
39
David Grudl (@dg)

dg

PHP, HTML
3,589
star
40
Igor Kulman (@igorkulman)

igorkulman

C#, Swift, JavaScript
3,484
star
41
Hana Dusíková (@hanickadot)

hanickadot

C++
3,442
star
42
Daniel Milde (@dundee)

dundee

Go, Python, PHP
3,431
star
43
Matheus Fernandes (@matheuss)

matheuss

JavaScript, TypeScript, C++
3,420
star
44
Kiwi.com (@kiwicom)

kiwicom

JavaScript, Python, HCL
3,335
star
45
Keen Software House (@KeenSoftwareHouse)

KeenSoftwareHouse

C#, HTML, C++
3,163
star
46
Salsita Software (@salsita)

salsita

JavaScript, Python, TypeScript
3,127
star
47
Janko Marohnić (@janko)

janko

Ruby, JavaScript, HTML
3,048
star
48
Jan Mrázek (@yaqwsx)

yaqwsx

Python, C++, C
3,029
star
49
@swarmpit

swarmpit

Shell, Less, Clojure
2,940
star
50
CZ.NIC (@CZ-NIC)

CZ-NIC

Python, C, JavaScript
2,874
star
51
Pavel Stehule (@okbob)

okbob

C
2,873
star
52
@CESNET

CESNET

C, Python, C++
2,731
star
53
Dmytro Mishkin (@ducha-aiki)

ducha-aiki

Jupyter Notebook, Python, C++
2,655
star
54
Inmite s.r.o. (@inmite)

inmite

Java, CSS, JavaScript
2,555
star
55
Contributte (@contributte)

contributte

PHP, CSS, JavaScript
2,545
star
56
Michal Spicka (@elendirx)

elendirx

HTML
2,255
star
57
Martin Lapiš (@lapism)

lapism

Kotlin
2,232
star
58
@ApiGen

ApiGen

PHP, HTML
2,142
star
59
Zdenek Kalal (@zk00006)

zk00006

MATLAB
2,090
star
60
Vojtěch Krása (@krasa)

krasa

Java, C++, Kotlin
2,062
star
61
@Brightify

Brightify

Swift, Java, Kotlin
2,042
star
62
Schemathesis.io (@schemathesis)

schemathesis

Python
2,038
star
63
Andrei Kvapil (@kvaps)

kvaps

Shell, HTML, Go
2,026
star
64
@martinrotter

martinrotter

C++, TeX, Shell
1,980
star
65
Michal Krenek (Mikos) (@xmikos)

xmikos

Python, Java, C
1,967
star
66
Futured (@futuredapp)

futuredapp

Swift, Kotlin, Ruby
1,956
star
67
Petr Baudis (@pasky)

pasky

Python, Perl, TeX
1,862
star
68
Michal 'vorner' Vaner (@vorner)

vorner

Rust, SCSS
1,856
star
69
David Samuel (@davda54)

davda54

Python, C#, Pascal
1,772
star
70
Patrik Holop (@PatrikH0lop)

PatrikH0lop

C, Python
1,727
star
71
Michal Danilák (@Mimino666)

Mimino666

Python, C++
1,725
star
72
Jiri Spac (@capaj)

capaj

JavaScript, TypeScript, CSS
1,692
star
73
Martin Kníže (@Martz90)

Martz90

CSS
1,689
star
74
Avocode (@avocode)

avocode

CoffeeScript, JavaScript, HTML
1,688
star
75
Petr Nohejl (@petrnohejl)

petrnohejl

Python, Java, C++
1,681
star
76
ÚFAL (@ufal)

ufal

Python, Perl, C++
1,677
star
77
Josef Prusa (@josefprusa)

josefprusa

JavaScript, OpenSCAD, Python
1,665
star
78
Jiří Stránský (@jistr)

jistr

Shell, Ruby, Python
1,634
star
79
Matěj Týč (@matejak)

matejak

Python, Shell, C
1,616
star
80
Davide Pollicino (@omonimus1)

omonimus1

Python, JavaScript, C++
1,612
star
81
Ondrej Jamriska (@jamriska)

jamriska

C++, C
1,584
star
82
Dávid Ocetník (@ocetnik)

ocetnik

Java
1,572
star
83
Urbandroid Team (@urbandroid-team)

urbandroid-team

Kotlin, Java, SCSS
1,561
star
84
Lukáš Vlček (@lukas-vlcek)

lukas-vlcek

Java, JavaScript, Shell
1,541
star
85
dcbuilder.eth (@dcbuild3r)

dcbuild3r

Rust, JavaScript, Solidity
1,539
star
86
Michael Grafnetter (@MichaelGrafnetter)

MichaelGrafnetter

C#
1,515
star
87
BOOT!Q Creative (@blueberryapps)

blueberryapps

JavaScript, Ruby, TypeScript
1,502
star
88
Martin Mitáš (@mity)

mity

C, C++, PHP
1,498
star
89
Minexew (@minexew)

minexew

Python, HolyC, C++
1,494
star
90
SatoshiLabs (@satoshilabs)

satoshilabs

Markdown
1,474
star
91
Josef Šimánek (@simi)

simi

Ruby, CSS, C
1,467
star
92
Marcel Dopita (@moneytoo)

moneytoo

Java, JavaScript, Shell
1,461
star
93
Tolgee (@tolgee)

tolgee

TypeScript, Svelte, HTML
1,432
star
94
Michal Doubek (@coofcookie)

coofcookie

C#
1,425
star
95
Slevomat (@slevomat)

slevomat

PHP
1,424
star
96
CRoCS (@crocs-muni)

crocs-muni

Python, Java, C++
1,415
star
97
Vladimír Gorej (@char0n)

char0n

JavaScript, Python, Java
1,412
star
98
Stratosphere IPS (@stratosphereips)

stratosphereips

Python, Jupyter Notebook, Shell
1,411
star
99
Maciej Treder (@maciejtreder)

maciejtreder

TypeScript, JavaScript, Java
1,405
star
100
Evgeny (@Evalle)

Evalle

Python, Shell
1,387
star

Statistics

By location

Prague 64.0%
Brno 21.3%
Ostrava 2.1%
Pilsen 1.5%
Liberec 1.0%
Other 10.1%

By programing language

JavaScript
 		15.9%
Python
 		14.8%
C++
 		8.3%
PHP
 		8.1%
Java
 		8.1%
Other 		44.8%

World rating by programing language (country/rank)

Dockerfile
 		20
Shell
 		21
C
 		24
C++
 		26
Rust
 		26

* More analytics for signed in users.