What are collections?

Collections are a way for the community to curate groups of kata that can be trained on in a sequence. All collections are public. Eventually we will start to feature well crafted collections on other areas of the site.

How does this relate to bookmarks?

Bookmarking (starring) a kata is similar to collecting a kata, except that your bookmarks are kept private. They are also easily accessible via the top right bookmarks dropdown. If you intend to keep a list of kata you wish to work on later then bookmarks will serve you better.

Can I add to someone else's collection?

Only the warrior who created the collection can add to it. You are free to create your own collection with the same name. Kata are also searchable within the kata library by any collection name it is associated with. In this way you can easily find kata that span across multiple collections of the same name.

4325 Collections Found

later
19162 kyuTorkelUniversity of Manchester
OOP
257 kyustrama4
BFS SHITPOST
973 kyuTorkelUniversity of Manchester
para fazer
2177 kyuThiago LemosUnicariocadev
Objects
1097 kyuhgt
To do
274 kyuAnt1-DLaPause
Doable but long
5225 kyuThe ForceThe Galaxy
Array methods
16296 kyudeniolpHTML Academy
Ques
2104 kyumohdasimLitmus World
Fixme
6104 kyuhobovskyPDTec
No hablo
335 kyuhobovskyPDTec
Solved ...
10256 kyufilepnoraCodecool
Out-beta
345 kyuhobovskyPDTec
To Solve
6152 kyuKhAA1C-KSU
Memory
86326 kyu7097511hobby
Fun ones
245 kyuThe ForceThe Galaxy
sss
10295 kyuDanielOrfeuUnicariocadev
Java
8367 kyuminalouisITBH
PHP
2187 kyuminalouisITBH
Overranked
213 kyuhobovskyPDTec
To solve
34144 kyuhobovskyPDTec
SQL
616 kyuSkrety
Favor
262 kyumercurialleeSi Chuan University, China
Algorithm
293 kyushuweideSimbo Dev
TODO
2136 kyuoceans1
todo
2224 kyuQbius
Polynomials
2695 kyuhobovskyPDTec
Math
3186 kyudeniolpHTML Academy
На будущее
3102 kyuAndronikIpsos iField
str
3166 kyu53tangyabuli
Fundamentals
15206 kyusjottermanBravo Wellness
reduce
4127 kyuMRQQ
recursive
11156 kyuMRQQ
7Kyu
13227 kyupreal0517
Jo's to dos
11163 kyujospackmanIress
To Do
3165 kyuferencDobiCodecool
TODO
2235 kyuwinter_soldier13AnonymousPirates
Numbers
9294 kyuhobovskyPDTec
my fuck
6236 kyuayyappa1school
new
217 kyudaniellabiancaHartcode
Regex
2136 kyushth
TODO
29264 kyuFalkorX
Python 7 kyu
64327 kyuadamszabolcsCodecool
Succinct
3247 kyuL-PrimeTriumvirate Labs
Basic Syntax Explored
14308 kyuTheLamiaMiskatonic University
python
3216 kyukarthikraja34Prince shri venkateswara engineering college
Math
38296 kyujuansgaitanApify
TODO
12265 kyudaniel.silvaCatho
Graphs
353 kyuhobovskyPDTec
Geometry
10236 kyuhobovskyPDTec
4 kata
2224 kyuallashmantro.net GmbH
nice
3195 kyuanonrab
katas_to_try
16205 kyudonaldkellynorthcoders
Regex
2126 kyunajusteSPICED
kata
385 kyuxiaolangganxiaolanggan
SQL 7 Kyu
1517 kyuadamszabolcsCodecool
Code Warez
3174 kyumonnersStack Exchange
Kata -Ruby
5145 kyuvpupkinSingleton
wcs
12275 kyuakababWCS
Filtering
50256 kyujuansgaitanApify
oo php
217 kyumickyfreeRick James
Challenges
7166 kyupbrignetiBelgrave
Maths
2126 kyushth
to-do
2146 kyuakash_011Andela
SQL_Challenges
1016 kyupbrignetiBelgrave
regEx
8176 kyuMRQQ
more practice
396 kyuvictorlooALPHA Camp
filter
276 kyuMRQQ
ToDos
41295 kyuMarcusS
To do
2127 kyumboeddekerAppgewaltig
ToDo
10265 kyuk2coderNinja
#1
295 kyuSkrety
Algorithms
375 kyusbakhtBloomingdale's
pp
477 kyuWirekCodecool
Intermediate
10246 kyuGavinStarkThe Iron Yard
ToDo List
16163 kyuDehelFnac (A3IS - Bluesoft Group)
SQL 8 Kyu
1618 kyuadamszabolcsCodecool
Mark
4116 kyucenzhenjieINSA Lyon
A
2104 kyukiripol
todo
4245 kyujakwenta
SQL
216 kyudeadzqKYK
Format
53256 kyujuansgaitanApify
Coding
3295 kyusamuli
NotSolved
2114 kyuhanes99gitconnected
6k
5186 kyujohn1k
To solve
15223 kyuweirdoStewieConmio
String
3186 kyuxyolo@home
see?
3276 kyunotarium
Todo
5124 kyusparkusTeam-Gizmo
sql_8kyu
8358 kyujohnmkershawHOPE International School
collection1
4194 kyuxadahiyaUdacity
curious
5263 kyudelucasWeCode
CCC Weekly Challenge
3245 kyuillbillyCallaway Cloud
8 Kyu
4187 kyuM-GaddIronhack
unsolved
275 kyuSoulxeonSouLabs
ToDos
494 kyuTrollslayerDB Systel
reverse array
267 kyuPetrBuslyukLohika Inc.
SQL
4146 kyuzuzik
ERROR
9196 kyuzuzik
ToFinish
2184 kyuQemikalMinMun Enterprises
Favorites
3105 kyuTGuillouetCoding Factory
intressant
11184 kyulitemerafrukttretton37
todo
13164 kyudecaff
Completed kata
3105 kyuABTKSchool
Basic-Bitches
18287 kyuTheReubGeorgia Gwinnett College
One
6265 kyuEli_G
k-Primes
2245 kyubkeslerStrategic America
best py
5235 kyunicai
My Haskell Katas
432 kyuconmuteconmute.com
TODO
6165 kyuNyriuUniud
Todo
5213 kyutrameeSelf
basic
2144 kyuZBlaZe
Starter Collection
2287 kyuAndiiRcodebusters
Twitch
6141 kyupuffnfreshAtlassian
new idea
7277 kyuyowsiongMalaysia Kuala Lumpur
todo
15163 kyurenatomassao@semTask
Strings
277 kyusinosuke11Zayas
Series
365 kyujhoffnerCodewars
unsolved
356 kyuchaoticsparksEPAM Systems
Python 5-6 Kyu Katas
22315 kyutonka-balonkaUniversity College London
1
22266 kyuAndrewRiz
Try to optimize
13246 kyumarkus.benkoUFYgQXV0b21vdGl2ZQ
Interesting
4122 kyujuliand665ios-developers.io
My Progs
2104 kyuRusAsharUWC USA
Not solved
2236 kyudonggaolaoMyself
Level 7
117336 kyuGautam SarkarCodewars
Fun Stuff
25305 kyuBogardoWVZ.online
Pittig
3205 kyuBogardoWVZ.online
Revisit
24227 kyuswn78
todo
273 kyuzsaculUniversity of Wrocław
cool
5214 kyurenatomassao@semTask
col1
2185 kyuv_akos
Java
3256 kyuManuhas_24TCS
obj
225 kyubrystek
123
316 kyutenhilltreeSelf
To-Do
34295 kyuManish-GiriScryNet
games
2286 kyuleo1991assemble
My Kata Collection
17225 kyuLynхIga and Kōga clans
Favorites
28205 kyuzruFVitra
team practice
21296 kyuluochen1990Netease
todo
3236 kyuskilo
kata1
2204 kyuTryMyBest江西师范大学
Todo: Java
3175 kyutchoffmanKennesaw State
High Quality C
16116 kyusiebenschlaeferjambit GmbH
Level 6
35316 kyuGautam SarkarCodewars
my
4107 kyuriguel
Intro to Programming Cohort
25217 kyuoregonaggieAmerican Airlines - Intro to Programming
!!!
3126 kyutolikrss
Python 6 kyu
29316 kyuadamszabolcsCodecool
Python 5 kyu
10245 kyuadamszabolcsCodecool
Enjoyed
3235 kyu_woojiahao_Singapore Polytechnic
Kata's To Do
6184 kyualexcurtisUniversity Of Lincoln
Math Problems
3265 kyufmarcianiTrueCoders
ToDo
4156 kyuWhatapalaverMakers Academy
Broken
2136 kyudavla
Failed
4264 kyudavla
RegEx
43236 kyujuansgaitanApify
Review
2215 kyuseanaxn39sce
awesome
7257 kyulikuishanghai,china
Good Ones
2225 kyukevin-bebelKevinBebel
DoIt
2206 kyuMrZeka
8 kyu
27267 kyuGautam SarkarCodewars
算法
4145 kyuLionad江西师范大学
saved
2216 kyupixloBubenGuru
TODO
6255 kyuslou92
Saved
5114 kyuiamtrsAutovance
New Math
2105 kyukilotoneCSI-NY
1 kyu collection
243 kyubrettColeFlatiron School
Master Spark
44172 kyulolisaGensokyo
Solved
231 kyudrkw
6 kyu_June_2018
6246 kyuchunyang802University of California, Berkeley
toDo
10246 kyuPapavero
maths-lvl6
3256 kyustudurTelagene
# todo
21214 kyurichkotzeFindmypast
ToDo
384 kyuvcamp
problem kata
52295 kyu王者不可阻挡中国矿业大学
Nice Problems
6114 kyufdiaz83McGuire Research
goood
6225 kyukrelly
Parsing
381 kyurusski007MYOB
Code Golf: Refactor These to the Least "Holes"
3166 kyuRoutinePoutineI'm an online and in person tutor for TOEFL, accent reduction, etc.
HELP
7167 kyuRAScript
Sledeće
2225 kyuptichicaDuduci
Education
426 kyujhoffnerCodewars
Interesting NASM katas
3236 kyudsprenkelsRadboud University
Algorithms
6195 kyuSreeramUniversity of Bridgeport
WishList
253 kyudrakvanBBVA Bancomer
questions
585 kyureadytohackkSRM UNIVERSITY
Reactjs
1115 kyusultanhqFindmypast
To finish
5225 kyurscheiweRVLTN Group, INC
Interview
5215 kyudnaryshevArthouse Soft
Unlocked
8234 kyuzhictorykinhom
List
10276 kyuxbytes
Beginner Katas
14277 kyuZiziou91northcoders
interesting
6245 kyuRaSpiritClearMinds
to_do
2116 kyuweiye13
HM Fun Katas
257 kyuhm100Northcoders
Portfolio
5211 kyuAzeezahHoward University
Nation
232 kyuvincent-silvaIlluminati ad eternum
7kyu
297 kyuetnevelCodecool
8 kyu
3358 kyuetnevelCodecool
Practice
5223 kyuLucienPrabhat104.com
6kyu Collections
6216 kyuChae-EunKonkuk University
JS
5105 kyudavid82213
Python_Fundamentals
4208 kyuKetariCharles Sturt University
TODO
13235 kyumdublak
JS Practice
27264 kyucsjiangGrace Hopper 1610
First 10
10358 kyuSamiJGNorthcoders
redo
288 kyuSunfanyuself
review
3214 kyufunk1d
Bits
16266 kyujuansgaitanApify
Strings
4266 kyulijixiang_92Google
learn_lists
4148 kyujohnmkershawHOPE International School
number
284 kyuKingsley-DonCommunication University of China
Regex
2136 kyulijixiang_92Google
practice_May_2018
6255 kyuchunyang802University of California, Berkeley
JS_Interesting
45197 kyualotaibitRiyadh Data Geeks
to do
8142 kyuMy-
Collection
256 kyuzozo2017Kavanagh Clan
ToDo
6265 kyukurokawa
ToDo
3146 kyudralos#SBA
try these
7164 kyuprsmithRanken Technical College
Beginner
8237 kyujohnmkershawHOPE International School
\\TODO
3144 kyubwDialogsDialogs
8byu
13278 kyujohnmkershawHOPE International School
python case
284 kyu421024933liquidnetword.com
Practice Katas
7226 kyumiahuynhHack Reactor
Done
27366 kyuxavikSpain
To do
8184 kyuveosLublin University of Technology
Todo
11225 kyuclouduanShanghai Jiao Tong University
OnlyC#Tasks
384 kyubondachUral State University
DoLater
6184 kyuSatXa
git six'in
9246 kyustefanomartinengoDevMountain
stuff
6235 kyubenante
Hmm
26274 kyuAnonGuyLoreto Coders
dataStruct
3122 kyuhuyhiNUPT
Clever solutions
6285 kyucliffkangLambdaSchool, Lambda School
JS
7216 kyuxianminChina
math
2184 kyuyesmider
regex
3116 kyuSimonCW
learn_classes
647 kyujohnmkershawHOPE International School
fun katas
21253 kyuzscheckOrigin Code Academy
Interested Topic
225 kyuPanSwiftnil school
8 kyu
271367 kyuJtrumanLaunch School
PHP
2204 kyuLexXxurioMoloko
not solved
3125 kyuabel91740FullStack 1610
Alotest
4236 kyumfauziAlodokter
C
3112 kyushaoxueheng
Bittini
2135 kyumarcocastellaniTeam Baiocchi
TrainingJS
1378 kyuSeanRParkerDevPoint Labs
bookmarks
2245 kyuCodeLemurvoiXen
JS
14235 kyuCodepeace
dadda
2225 kyushivu
C_Tasks
9162 kyuGoodHumsterSovcombank
interesting
4256 kyujuroshNexit
DevCom
3176 kyuenceemZurich Service GmbH
Awesome
4124 kyuylxxBUCT
Essential
278 kyuSuperSurokMagora Systems
Awesome katas
376 kyusaurabhlambeESDS Software Solution
JavaScript
235 kyuLexXxurioMoloko
6 kata
3186 kyukanatbekMVI
To review
8247 kyuwominikinfoShare Academy
4k
2124 kyujohn1k
Faves
296 kyud8aninjaProtectWise
Clever
5194 kyujturiCode Wars: The Old Republic
solving
2215 kyuLiuChuang0059Wuhan University
fund
3146 kyuJordenRP
TODO
14224 kyuszmodry
todo
214 kyucode-obsessioncamarilla
To refactor
2117 kyuwominikinfoShare Academy
Favs
2202 kyuFrBosquetIronhack
Sorting
12116 kyujuansgaitanApify
Weird
8245 kyuSatXa
Generator
875 kyujuansgaitanHarvari
Geometry
4187 kyuDemonKingThe Coder School Palo Alto
Want to do
295 kyupmacleanEastside Preparatory School
1
14236 kyushururup%clanname%
regex
9146 kyucipha
Whiteboarding
5155 kyuchadwithuhcCoding Garden
ToTry
8173 kyumasongallandDevMountain
Coach355's Java (6 kyu)
22256 kyuCoach355The 355:113 Club
TO DO
2106 kyupetre11Not Celebrities
ToDo
222 kyuuge-xCodinglab srl
Coach 355's Java (5 kyu)
1295 kyuCoach355The 355:113 Club
Coach 355's Beginning Java
12248 kyuCoach355The 355:113 Club
BeginningJavaTasks
12298 kyuCoach355The 355:113 Club
d
2174 kyucarlloy
interesting
11173 kyulundibundiIT KPI
Linq
2216 kyulijixiang_92Google
Coach355's Java (7 kyu)
12217 kyuCoach355The 355:113 Club
ebb and flow
485 kyuAarya.bhatiaThe Shri Ram School - Aravali
kyu7
5107 kyuvpoonaip y t h o n b o i s
Optimization
50256 kyujuansgaitanHarvari
Recursion
19246 kyujuansgaitanHarvari
IH
216 kyubelIronhack
To do
455 kyubelIronhack
Unsolved kata
2117 kyuandroPoo-brain
骚操作
385 kyuHannesWangjizhi.im
wonderful keys
6196 kyuslzll杭州电子科技大学
1
3166 kyuPomkaizeSPBSTU
*
3246 kyuKristinaa78
ToDo
3215 kyuTMiddlehurstSparta Global
TODO
5233 kyulgpageUniversity of Pretoria
Ideas
9225 kyuarollafosca
ASAE Check
5196 kyukforestNetwork Data Systems
Bits
275 kyuDaarin
RegEx
3105 kyuDaarin
SmartAsses
296 kyuInsiyaaSVNIT
TDD Katas
4226 kyuPaulRitzmanCode Fellows
Linq
385 kyuRaskol
OOP
346 kyuadavis444Binghamton University
Python
16248 kyuM-GaddIronhack
Challenges
7227 kyucoderpyArmitage |||
Elizabeth R Collection
7357 kyuElizabethRSimplon Cahors
6 Kyu
10226 kyuM-GaddIronhack
TypeScript for Beginners
6188 kyuMaikelNabilMikeNabil.net - Washington, DC
Let's go
2108 kyupcdroIsolados
Tough
287 kyupcdroIsolados
iCantDoNow
2245 kyurunzhi214Meritco
deque
246 kyurunzhi214Meritco
Arrays
20255 kyugvenkat
best katas
2126 kyumjuncalacunaUniversity of South Wales
Fajne
18212 kyuaquinum
stats
4176 kyufalihazikrascu
challenge for me
285 kyuoneprogramapeHuazhong University of Science and Technology
5 kyu
295 kyuthegopieffectUniversity
Favorite
2135 kyusmileexxBoobs Inc
python
13246 kyuEwelinaKiCodeCool
Core
4237 kyuhf0317
Exercícios
4157 kyujoaoCrulhasUNESP/Tray
Still Don't Understand
275 kyucliffkangLambdaSchool, Lambda School
string
8135 kyumzhqFDU
Games
11133 kyuCodeVortexAtypon
Da studiare
24256 kyuC_MinorAlten
javascript
275 kyucxqcoderYangtze Normal University
Israt Time
15147 kyucllamasDennis Publishing
Mathy
2204 kyualansunSkyridge
Stage #2
364 kyuaytsaNBSUIR
7 Kyu
12176 kyuM-GaddIronHack
Floating Point
314 kyumonadiusAsmolgam
miss
4125 kyuTaron
Ruby
14197 kyuBanjer71
kyu4
6186 kyutenhilltreeSelf
Dynamic programming
385 kyuadavis444Binghamton University
clever
245 kyumzhqFDU
TODO
10123 kyuTimethor7th Fetzer Valve
toDO
275 kyurunzhi214Meritco
123
4195 kyuvae84072840728406
ToDo
10244 kyudaniloza
Later
15122 kyuMalky
Visionary April 2018
8246 kyucschuetzVisionaryDevs
other
274 kyumzhqFDU
katas
5126 kyuserg_ka
Later
16234 kyutinchoy94PU