🇨🇿 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

5,896

Organizations

823

Repositories

38,981

Top Rank

Shell, TeX, C

🇨🇿 Made in Czechia Compare with other countries

Top Contributors

1
Avast (@avast)

avast

Scala, Java, C++
18,127
star
2
Jakub Onderka (@JakubOnderka)

JakubOnderka

PHP, Rust, JavaScript
13,242
star
3
Prusa3D (@prusa3d)

prusa3d

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

giampaolo

Python, HTML
11,098
star
5
Ondřej Žára (@ondras)

ondras

JavaScript, TypeScript, HTML
10,067
star
6
Photopea (@photopea)

photopea

JavaScript, HTML
9,443
star
7
Jan Vlnas (@jnv)

jnv

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

panva

JavaScript, TypeScript
8,541
star
9
Jan Pochyla (@jpochyla)

jpochyla

Rust, JavaScript, C
7,798
star
10
Jakub Vrána (@vrana)

vrana

PHP, JavaScript
6,981
star
11
Josef Nemec (@JosefNemec)

JosefNemec

C#, HTML
6,880
star
12
Catalin Miron (@catalinmiron)

catalinmiron

JavaScript, TypeScript, Objective-C
6,571
star
13
Vladimír Vondruš (@mosra)

mosra

C++, Shell, C
6,121
star
14
Trezor (@trezor)

trezor

Python, JavaScript, C
6,002
star
15
Martin Dvorak (@dvorka)

dvorka

C++, Java, C
5,949
star
16
Filip Krikava (@fikovnik)

fikovnik

Shell, Objective-C, Python
5,754
star
17
Farkhod Sadykov (@TheR1D)

TheR1D

Python
5,653
star
18
Jan Kotek (@jankotek)

jankotek

Java, Kotlin, HTML
5,224
star
19
@Disassembler0

Disassembler0

Python, C#, PHP
4,878
star
20
Václav Slavík (@vslavik)

vslavik

C++, Python, Makefile
4,806
star
21
Marek Šottl (@sottlmarek)

sottlmarek

Python, HCL, Ruby
4,745
star
22
Pavan Kumar Sunkara (@pksunkara)

pksunkara

JavaScript, Rust, C
4,701
star
23
Petr Beneš (@wbenny)

wbenny

C, C++, CMake
4,635
star
24
Jan Škoruba (@skoruba)

skoruba

C#, TypeScript
4,151
star
25
Lingui (@lingui)

lingui

TypeScript, JavaScript, Rust
4,013
star
26
Weblate (@WeblateOrg)

WeblateOrg

Python, Shell, Makefile
4,007
star
27
client IO (@clientIO)

clientIO

JavaScript, TypeScript, Svelte
4,001
star
28
Karel Minarik (@karmi)

karmi

Ruby, JavaScript, Go
3,975
star
29
Viktor Chlumský (@Chlumsky)

Chlumsky

C++, JavaScript, C
3,961
star
30
Matus Goljer (@Fuco1)

Fuco1

Emacs Lisp, Shell, Haskell
3,949
star
31
Jakub Jirutka (@jirutka)

jirutka

Shell, Java, Ruby
3,948
star
32
Patrik Simek (@patriksimek)

patriksimek

CoffeeScript, JavaScript, PLpgSQL
3,864
star
33
Filip Hracek (@filiph)

filiph

Dart, JavaScript, Python
3,664
star
34
Kamil Vavra (@vavkamil)

vavkamil

Python, HTML, PHP
3,642
star
35
Jakub Beránek (@Kobzol)

Kobzol

C++, Python, Rust
3,638
star
36
Jindra Petřík (@jindrapetrik)

jindrapetrik

Java, C++, ActionScript
3,630
star
37
Source (@madebysource)

madebysource

JavaScript, ActionScript, CSS
3,605
star
38
David Grudl (@dg)

dg

PHP, HTML
3,492
star
39
Igor Kulman (@igorkulman)

igorkulman

C#, Swift, JavaScript
3,484
star
40
Matheus Fernandes (@matheuss)

matheuss

JavaScript, Java, Shell
3,345
star
41
Josef Pihrt (@josefpihrt)

josefpihrt

C#, Vim Snippet
3,307
star
42
Salsita Software (@salsita)

salsita

JavaScript, Python, TypeScript
3,127
star
43
Keen Software House (@KeenSoftwareHouse)

KeenSoftwareHouse

C#, C++, HTML
3,126
star
44
Samuel Tulach (@SamuelTulach)

SamuelTulach

C#, C++, C
3,123
star
45
Janko Marohnić (@janko)

janko

Ruby, HTML, JavaScript
3,048
star
46
Jan Mrázek (@yaqwsx)

yaqwsx

Python, C++, TeX
3,029
star
47
Kiwi.com (@kiwicom)

kiwicom

JavaScript, Python, HCL
2,993
star
48
Hana Dusíková (@hanickadot)

hanickadot

C++
2,963
star
49
Daniel Milde (@dundee)

dundee

Python, Go, PHP
2,937
star
50
CZ.NIC (@CZ-NIC)

CZ-NIC

Python, C, JavaScript
2,874
star
51
@swarmpit

swarmpit

Shell, Go, Clojure
2,731
star
52
Pavel Stehule (@okbob)

okbob

C
2,712
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
2,559
star
55
@CESNET

CESNET

C, Python, PHP
2,483
star
56
Contributte (@contributte)

contributte

PHP, JavaScript, CSS
2,445
star
57
Michal Spicka (@elendirx)

elendirx

HTML
2,258
star
58
Martin Lapiš (@lapism)

lapism

Kotlin
2,223
star
59
@symplify

symplify

PHP
2,196
star
60
@ApiGen

ApiGen

HTML, PHP
2,140
star
61
Zdenek Kalal (@zk00006)

zk00006

MATLAB
2,091
star
62
Vojtěch Krása (@krasa)

krasa

Java, C++, Kotlin
2,062
star
63
@Brightify

Brightify

Swift, Java, Kotlin
2,042
star
64
Andrei Kvapil (@kvaps)

kvaps

Shell, HTML, Go
1,984
star
65
Michal Krenek (Mikos) (@xmikos)

xmikos

Python, Vim Script, Shell
1,967
star
66
Futured (@futuredapp)

futuredapp

Swift, Kotlin, Ruby
1,876
star
67
Michal 'vorner' Vaner (@vorner)

vorner

Rust, SCSS
1,856
star
68
Schemathesis.io (@schemathesis)

schemathesis

Python
1,851
star
69
Petr Baudis (@pasky)

pasky

Python, Perl, TeX
1,791
star
70
Jiri Spac (@capaj)

capaj

JavaScript, TypeScript, CSS
1,692
star
71
Avocode (@avocode)

avocode

CoffeeScript, JavaScript, HTML
1,689
star
72
Martin Kníže (@Martz90)

Martz90

CSS
1,688
star
73
@martinrotter

martinrotter

C++, TeX, C#
1,688
star
74
ÚFAL (@ufal)

ufal

Python, Perl, C++
1,677
star
75
Petr Nohejl (@petrnohejl)

petrnohejl

Python, Java, C++
1,676
star
76
Josef Prusa (@josefprusa)

josefprusa

JavaScript, OpenSCAD, Python
1,633
star
77
Jiří Stránský (@jistr)

jistr

Shell, Python, Ruby
1,624
star
78
David Samuel (@davda54)

davda54

Python, C#, Pascal
1,556
star
79
Lukáš Vlček (@lukas-vlcek)

lukas-vlcek

Java, Shell, JavaScript
1,544
star
80
dcbuilder.eth (@dcbuild3r)

dcbuild3r

Rust, JavaScript, Solidity
1,539
star
81
Dávid Ocetník (@ocetnik)

ocetnik

Java
1,534
star
82
Matěj Týč (@matejak)

matejak

Python, Shell, C
1,525
star
83
BOOT!Q Creative (@blueberryapps)

blueberryapps

JavaScript, Ruby, TypeScript
1,502
star
84
Martin Mitáš (@mity)

mity

C, PHP, C++
1,498
star
85
Minexew (@minexew)

minexew

Python, HolyC, C++
1,494
star
86
Patrik Holop (@PatrikH0lop)

PatrikH0lop

C, Python
1,484
star
87
Davide Pollicino (@omonimus1)

omonimus1

Python, C++, JavaScript
1,480
star
88
Josef Šimánek (@simi)

simi

Ruby, C, CSS
1,467
star
89
Slevomat (@slevomat)

slevomat

PHP
1,424
star
90
Vladimír Gorej (@char0n)

char0n

JavaScript, Python, Java
1,412
star
91
Stratosphere IPS (@stratosphereips)

stratosphereips

Python, Jupyter Notebook, Shell
1,411
star
92
SatoshiLabs (@satoshilabs)

satoshilabs

Markdown
1,408
star
93
Ondrej Jamriska (@jamriska)

jamriska

C, C++
1,406
star
94
Maciej Treder (@maciejtreder)

maciejtreder

TypeScript, JavaScript, Java
1,405
star
95
Michael Grafnetter (@MichaelGrafnetter)

MichaelGrafnetter

C#
1,392
star
96
Urbandroid Team (@urbandroid-team)

urbandroid-team

Kotlin, Java, SCSS
1,389
star
97
@coofcookie

coofcookie

C#
1,372
star
98
CRoCS (@crocs-muni)

crocs-muni

Python, Java, C++
1,349
star
99
Petr Gotthard (@gotthardp)

gotthardp

Erlang, Makefile, BitBake
1,349
star
100
Evgeny (@Evalle)

Evalle

Python, Shell
1,340
star

Statistics

By location

Prague 63.9%
Brno 21.3%
Ostrava 2.1%
Pilsen 1.4%
Liberec 1.0%
Other 10.3%

By programing language

JavaScript
15.7%
Python
14.6%
PHP
8.8%
Java
8.3%
C++
8.2%
Other
44.4%

World rating by programing language (country/rank)

Shell
21
TeX
22
C
24
Go
26
Rust
26

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