CTF Challenges by Category
All Skills
⭐
linux × 92
💪
operating-systems × 66
⭐
sql × 46
💪
control-flow × 42
💪
java × 40
💪
variables × 36
💪
data-types × 36
💪
loops × 32
⭐
database × 26
💪
directory-commands × 24
💪
c-programming × 24
💪
file-commands × 24
💪
syntax × 23
💪
python × 23
💪
process-management × 22
💪
basics × 22
💪
java-programming × 20
💪
mongodb × 20
💪
cli × 19
💪
css × 18
⭐
programming × 17
💪
file-management × 14
💪
update × 14
💪
dml × 14
💪
sql-programming × 13
💪
html × 13
💪
keywords × 12
💪
commands × 12
💪
navigation × 12
💪
insert × 12
💪
performance × 12
💪
data-retrieval × 11
⭐
arrays × 11
💪
unix × 10
💪
control-flow-structures × 10
💪
operators × 10
💪
conditionals × 10
💪
crud × 10
💪
file-directory-commands × 10
💪
web-development × 10
💪
ddl × 9
💪
constants × 9
💪
virtualization × 9
💪
react × 9
💪
data-structures × 9
💪
object-oriented-programming × 9
💪
file-permissions × 9
💪
switch × 9
💪
javascript × 9
💪
machine-learning × 9
💪
delete × 9
💪
responsive-design × 8
💪
if-else × 8
💪
memory × 8
💪
select × 8
💪
memory-management × 8
💪
kernel × 8
💪
accessibility × 7
💪
semantics × 7
💪
html-elements × 7
💪
layout × 7
💪
sorting × 7
💪
inheritance × 7
💪
c × 7
💪
artificial-intelligence × 7
💪
functions × 7
💪
styling × 7
💪
basic × 6
💪
security × 6
💪
python-programming × 6
💪
hooks × 6
💪
devops × 6
💪
api × 6
💪
iteration × 6
💪
aggregation × 6
💪
graphql × 6
💪
rest × 6
💪
file-systems × 6
💪
troubleshooting × 6
💪
database-management × 6
💪
docker × 6
💪
state × 6
💪
for-loop × 6
💪
concurrency × 6
💪
scheduling × 6
⭐
list × 6
💪
html-css × 5
💪
switch-statement × 5
💪
loop × 5
💪
file-creation × 5
💪
file-system × 5
💪
http-methods × 5
💪
props × 5
💪
encapsulation × 5
💪
scheduler × 5
💪
floating-point × 5
💪
hypervisor × 5
💪
output × 5
💪
joins × 5
💪
images × 5
💪
operating-system × 5
💪
io-systems × 5
💪
synchronization × 5
💪
device-drivers × 5
💪
sql-syntax × 5
💪
conditional × 5
💪
react-hooks × 5
💪
containerization × 5
⭐
filtering × 5
💪
data-format × 4
💪
basic-sql × 4
💪
cpu × 4
💪
variable-declaration × 4
💪
nlp × 4
💪
hardware × 4
💪
data-manipulation × 4
💪
git × 4
💪
http × 4
💪
pointers × 4
💪
format-specifiers × 4
💪
aggregate-functions × 4
💪
context-switching × 4
💪
react-js × 4
💪
selectors × 4
💪
arraylist × 4
💪
conditional-statements × 4
💪
real-time-systems × 4
💪
where-clause × 4
💪
selection × 4
💪
break × 4
💪
directories × 4
💪
networking × 4
💪
virtual-memory × 4
💪
processes × 4
💪
side-effects × 4
💪
dom × 4
💪
distributed-systems × 4
💪
ordering × 4
💪
continuous-integration × 4
💪
lists × 4
💪
device-driver × 4
💪
sql-commands × 4
💪
branching × 4
💪
jenkins × 4
💪
state-management × 4
💪
indexing × 4
💪
linux-commands × 4
💪
mutex × 4
💪
permissions × 4
💪
boolean × 4
💪
statements × 4
💪
components × 4
💪
group-by × 4
⭐
web × 4
💪
http-status × 3
💪
creation × 3
💪
file-io × 3
💪
flexbox × 3
💪
data-insertion × 3
💪
fundamentals × 3
💪
error-handling × 3
💪
query × 3
💪
update-operation × 3
💪
tokenization × 3
💪
virtual-machine × 3
💪
char × 3
💪
disk-usage × 3
💪
backend × 3
💪
views × 3
💪
feature-extraction × 3
💪
set × 3
💪
nosql × 3
💪
options × 3
💪
if-statement × 3
💪
nodejs × 3
💪
basic-syntax × 3
💪
methods × 3
💪
file-copy × 3
💪
float × 3
💪
distinct × 3
💪
init-process × 3
💪
priority-queue × 3
💪
classification × 3
💪
c++ × 3
💪
node.js × 3
💪
read × 3
💪
semaphore × 3
💪
api-design × 3
💪
postgresql × 3
💪
control-structures × 3
💪
jsx × 3
💪
reinforcement-learning × 3
💪
naming × 3
💪
casting × 3
💪
system-calls × 3
💪
io × 3
💪
deep-learning × 3
💪
operations × 3
💪
kernel-design × 3
💪
delete-operation × 3
💪
automation × 3
💪
fault-tolerance × 3
💪
app-development × 3
💪
continue × 3
💪
file-and-directory-commands × 3
💪
exception-handling × 3
💪
react.js × 3
💪
crud-operations × 3
💪
typography × 3
💪
order-by × 3
💪
linkedlist × 3
💪
media-queries × 3
💪
http-headers × 3
💪
natural-language-processing × 3
💪
constraints × 3
💪
mysql × 3
💪
break-statement × 3
💪
listing × 3
💪
declaration × 3
💪
java-collections × 3
💪
do-while × 3
💪
race-condition × 3
💪
algorithms × 2
💪
count × 2
💪
pipeline × 2
💪
techniques × 2
💪
document-structure × 2
💪
languages × 2
💪
schema-design × 2
💪
context-api × 2
💪
file-directory × 2
💪
python-scripting × 2
💪
immutability × 2
💪
chmod × 2
💪
hardware-management × 2
💪
version-control × 2
💪
hyperlinks × 2
💪
directory-navigation × 2
💪
sql-queries × 2
💪
switch-case × 2
💪
move × 2
💪
result-set × 2
💪
function × 2
💪
interface × 2
💪
window-functions × 2
💪
table-management × 2
💪
path × 2
💪
hyperlink × 2
💪
cloud-computing × 2
💪
training × 2
💪
constructors × 2
💪
comparison × 2
💪
characters × 2
💪
command-line × 2
💪
data-definition-language × 2
💪
integration × 2
💪
access-modifiers × 2
💪
conditions × 2
💪
while-loop × 2
💪
double × 2
💪
architecture × 2
💪
cybersecurity × 2
💪
network × 2
💪
read-operation × 2
💪
scripting × 2
💪
data-modification × 2
💪
routing × 2
💪
null × 2
💪
cte × 2
💪
advantages × 2
💪
text-processing × 2
💪
projection × 2
💪
dimensionality-reduction × 2
💪
deletion × 2
💪
superclass × 2
💪
data-fetching × 2
💪
logical × 2
💪
task-scheduling × 2
💪
file-reading × 2
💪
data-integrity × 2
💪
structure × 2
💪
file-recovery × 2
💪
abstract-class × 2
💪
neural-networks × 2
💪
schema × 2
💪
table-modification × 2
💪
constructor × 2
💪
relational-database × 2
💪
deadlock × 2
💪
sandboxing × 2
💪
command-line-interface × 2
💪
find × 2
💪
update-command × 2
💪
server × 2
💪
interrupts × 2
💪
directory-creation × 2
💪
api-development × 2
💪
printf × 2
💪
text-classification × 2
💪
sentiment-analysis × 2
💪
containers × 2
💪
multithreading × 2
💪
computer-networks × 2
💪
directory × 2
💪
data-query × 2
💪
css-selectors × 2
💪
beginner × 2
💪
select-statement × 2
💪
insert-into × 2
💪
design × 2
💪
join × 2
💪
sql-command × 2
💪
oracle × 2
💪
sql-basic × 2
💪
query-filter × 2
💪
nested-loops × 2
💪
usability × 2
💪
context × 2
💪
text × 2
💪
functional-component × 2
💪
unsigned × 2
💪
data-extraction × 2
💪
precision × 2
💪
querying × 2
💪
time-complexity × 2
💪
built-in-functions × 2
💪
query-optimization × 2
💪
hashmap × 2
💪
html5 × 2
💪
overflow × 2
💪
decision-making × 2
💪
files × 2
💪
interaction-design × 2
💪
shell-scripting × 2
💪
map × 2
💪
hypervisors × 2
💪
current-directory × 2
💪
knowledge-representation × 2
💪
responsive × 2
💪
fat32 × 2
💪
programming-language × 2
💪
basic-commands × 2
💪
examples × 2
💪
data-filter × 2
💪
web-design × 2
💪
peek × 2
💪
network-topologies × 2
💪
properties × 2
💪
process-scheduling × 2
💪
sql-injection × 2
💪
left-join × 2
💪
job-scheduling × 2
💪
features × 2
💪
file-operations × 2
💪
default-values × 2
💪
identifiers × 2
💪
jwt × 2
💪
linux-command × 2
💪
unique × 2
💪
insert-operation × 2