🇨🇿 Czechia Organizations doing Open Source

Leading organizations in the Czechia driving open source projects.

Developers

6,290

Organizations

839

Repositories

41,533

Top Rank

Shell, C, Lua

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

TOP Organizations

1
Avast (@avast)

avast

C++, Java, Scala
19,786
star
2
Prusa3D (@prusa3d)

prusa3d

HTML, C, C++
11,910
star
3
RectorPHP (@rectorphp)

rectorphp

PHP
9,320
star
4
Trezor (@trezor)

trezor

Python, JavaScript, C
6,223
star
5
DbGate (@dbgate)

dbgate

JavaScript, TypeScript, Svelte
4,976
star
6
client IO (@clientIO)

clientIO

JavaScript, TypeScript, Vue
4,223
star
7
Lingui (@lingui)

lingui

TypeScript, JavaScript, Rust
4,013
star
8
Weblate (@WeblateOrg)

WeblateOrg

Python, Shell, Makefile
4,007
star
9
Source (@madebysource)

madebysource

JavaScript, Objective-C, ActionScript
3,592
star
10
Kiwi.com (@kiwicom)

kiwicom

JavaScript, Python, HCL
3,521
star
11
Keen Software House (@KeenSoftwareHouse)

KeenSoftwareHouse

C#, HTML, C++
3,185
star
12
Salsita Software (@salsita)

salsita

JavaScript, Python, TypeScript
3,127
star
13
@swarmpit

swarmpit

Shell, Clojure, Less
3,111
star
14
@CESNET

CESNET

C, Python, C++
2,891
star
15
CZ.NIC (@CZ-NIC)

CZ-NIC

Python, C, JavaScript
2,874
star
16
Contributte (@contributte)

contributte

PHP, CSS, Latte
2,588
star
17
Inmite s.r.o. (@inmite)

inmite

Java, CSS, Objective-C++
2,556
star
18
Schemathesis.io (@schemathesis)

schemathesis

Python
2,227
star
19
@ApiGen

ApiGen

HTML, PHP
2,165
star
20
@Brightify

Brightify

Swift, Kotlin, Java
2,042
star
21
Futured (@futuredapp)

futuredapp

Swift, Kotlin, Ruby
1,986
star
22
Urbandroid Team (@urbandroid-team)

urbandroid-team

Kotlin, Java, SCSS
1,737
star
23
Tolgee (@tolgee)

tolgee

TypeScript, Svelte, MDX
1,732
star
24
Avocode (@avocode)

avocode

CoffeeScript, JavaScript, HTML
1,695
star
25
ÚFAL (@ufal)

ufal

Python, Perl, C++
1,677
star
26
SatoshiLabs (@satoshilabs)

satoshilabs

Markdown
1,528
star
27
BOOT!Q Creative (@blueberryapps)

blueberryapps

JavaScript, Ruby, TypeScript
1,502
star
28
Slevomat (@slevomat)

slevomat

PHP
1,424
star
29
CRoCS (@crocs-muni)

crocs-muni

Python, Java, C++
1,415
star
30
Stratosphere IPS (@stratosphereips)

stratosphereips

Python, Jupyter Notebook, Zeek
1,411
star
31
@symplify

symplify

PHP
1,371
star
32
FEO (@feo-cz)

feo-cz

C#, PHP, CSS
1,286
star
33
Seznam.cz a.s. (@seznam)

seznam

JavaScript, Python, C++
1,230
star
34
Easy Coding Standard (@easy-coding-standard)

easy-coding-standard

PHP
1,226
star
35
QupZilla Browser (@QupZilla)

QupZilla

C++, PHP, JavaScript
1,192
star
36
Step Up Labs (@step-up-labs)

step-up-labs

C#
1,184
star
37
Windy (@windycom)

windycom

JavaScript, Swift
1,164
star
38
Superdesk (@superdesk)

superdesk

Python, JavaScript, PHP
1,059
star
39
@Kdyby

Kdyby

PHP
1,023
star
40
Multi-robot Systems (MRS) group at Czech Technical University in Prague (@ctu-mrs)

ctu-mrs

C++, Shell, Python
1,000
star
41
BUT Speech@FIT (@BUTSpeechFIT)

BUTSpeechFIT

Python, Jupyter Notebook, Shell
950
star
42
Zonky (@zonkyio)

zonkyio

Java, Shell, JavaScript
939
star
43
Bastl Instruments (@bastl-instruments)

bastl-instruments

C++, Arduino, C
928
star
44
RIGANTI s.r.o. (@riganti)

riganti

C#, JavaScript, TypeScript
923
star
45
Ackee (@AckeeCZ)

AckeeCZ

TypeScript, Kotlin, Swift
900
star
46
Fork.dev (@fork-dev)

fork-dev

885
star
47
Nextras (@nextras)

nextras

PHP, JavaScript, Kotlin
874
star
48
Sourcefabric (@sourcefabric)

sourcefabric

PHP
872
star
49
Talsec (@talsec)

talsec

C, Kotlin
836
star
50
Czech Technical University (@cvut)

cvut

Python, Java, JavaScript
806
star
51
Adaptech s.r.o. (@adaptech-cz)

adaptech-cz

C
725
star
52
Bohemia Interactive (@BohemiaInteractive)

BohemiaInteractive

JavaScript, C, C++
711
star
53
Webscope.io (@webscopeio)

webscopeio

TypeScript, JavaScript, Python
696
star
54
@Kentico

Kentico

C#, JavaScript, TypeScript
663
star
55
Institute of Formal and Applied Linguistics – Dialogue Systems Group (@UFAL-DSG)

UFAL-DSG

Python, C, Roff
661
star
56
Fragaria, s.r.o. (@fragaria)

fragaria

JavaScript, Python, TypeScript
655
star
57
Pyvec, z.s. (@pyvec)

pyvec

Python, HTML, CSS
649
star
58
Otto DIY (@OttoDIY)

OttoDIY

C++, C, JavaScript
626
star
59
Melown Technologies, SE (@melowntech)

melowntech

C++, C#, CMake
610
star
60
@Showmax

Showmax

Python, Swift, Go
606
star
61
HAVIT (@havit)

havit

C#
595
star
62
edgedesign/phpqa (@EdgedesignCZ)

EdgedesignCZ

PHP, XSLT
577
star
63
@GoodAI

GoodAI

Python, C#, Jupyter Notebook
557
star
64
@ngParty

ngParty

TypeScript, JavaScript, HTML
540
star
65
@FlowCrypt

FlowCrypt

TypeScript, Python, Shell
533
star
66
@DEVSENSE

DEVSENSE

C#, PHP, Dockerfile
505
star
67
@CSIRT-MU

CSIRT-MU

Python, Jupyter Notebook, Java
500
star
68
LMC s.r.o. (@lmc-eu)

lmc-eu

PHP, JavaScript, TypeScript
499
star
69
Keboola (@keboola)

keboola

PHP, Python, JavaScript
497
star
70
Mews (@MewsSystems)

MewsSystems

C#, Kotlin, Dart
473
star
71
PostSharp Technologies (@postsharp)

postsharp

C#, PowerShell
468
star
72
API Hogs (@api-hogs)

api-hogs

JavaScript, Elixir
460
star
73
@TeskaLabs

TeskaLabs

Python, JavaScript, C
451
star
74
Löwenware (@lowenware)

lowenware

Rust, C, JavaScript
428
star
75
HARDWARIO (@hardwario)

hardwario

C, Python, JavaScript
423
star
76
statica (@staticafi)

staticafi

Python, C++, C#
405
star
77
@mapshakers

mapshakers

JavaScript, CSS, Scheme
403
star
78
GoodData (@gooddata)

gooddata

JavaScript, Python, TypeScript
386
star
79
ITDS Consulting, s.r.o. (@itds-consulting)

itds-consulting

Python, C++, Java
384
star
80
@ScreamingSandals

ScreamingSandals

Java, HTML
382
star
81
manGoweb s.r.o. (@manGoweb)

manGoweb

Swift, JavaScript, TypeScript
358
star
82
iXit Group (@iXit)

iXit

C
355
star
83
Péhápkaři (@pehapkari)

pehapkari

HTML, PHP
343
star
84
@Spinoco

Spinoco

Scala
338
star
85
Networks and Distributed Systems (@nesfit)

nesfit

Python, C#, Dockerfile
334
star
86
Wultra (@wultra)

wultra

Java, Swift, TypeScript
331
star
87
Contember (@contember)

contember

TypeScript, PHP, Dockerfile
323
star
88
Hlídač Státu, z.ú. (@HlidacStatu)

HlidacStatu

C#, JavaScript, HTML
322
star
89
Sec51 (@sec51)

sec51

Go, JavaScript
315
star
90
Packit (@packit)

packit

Python, TypeScript, Jupyter Notebook
314
star
91
Apify Projects (@apify-projects)

apify-projects

TypeScript, JavaScript, Python
303
star
92
Robo@FIT, Faculty of Information Technology, Brno University of Technology (@robofit)

robofit

C++, Python, C#
302
star
93
Pematon, s.r.o. (@pematon)

pematon

PHP, Less
298
star
94
Nebula Broadcast (@nebulabroadcast)

nebulabroadcast

Python, Shell
291
star
95
</BRJ> core packages (@baraja-core)

baraja-core

PHP, TypeScript, JavaScript
289
star
96
Purple Technology (@purple-technology)

purple-technology

TypeScript, JavaScript, C#
287
star
97
FlowUp (@flowup)

flowup

TypeScript, Go, JavaScript
286
star
98
Vitex Software (@VitexSoftware)

VitexSoftware

PHP, Shell, Python
286
star
99
Lundegaard a.s. (@lundegaard)

lundegaard

JavaScript, Java, Shell
276
star
100
@TheNetworg

TheNetworg

PHP, PowerShell, Python
269
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.