CTF Challenges by Category
All Skills
⭐
linux × 85
💪
python × 49
⭐
iot × 38
💪
control-flow × 36
💪
file-commands × 35
⭐
loops × 31
⭐
data-structures × 30
⭐
arrays × 29
💪
directory-commands × 26
💪
basics × 24
⭐
sql × 22
💪
operations × 20
💪
stacks × 20
💪
queues × 20
💪
navigation × 19
💪
mongodb × 19
💪
c-programming × 18
💪
javascript × 18
💪
variables × 18
💪
syntax × 18
⭐
optimization × 18
💪
data-types × 17
💪
update × 17
💪
protocols × 17
💪
file-management × 16
💪
cli × 15
⭐
algorithms × 14
💪
insert × 13
💪
delete × 13
💪
fundamentals × 13
⭐
database × 13
💪
crud × 12
💪
mqtt × 12
💪
python-programming × 12
⭐
sorting × 12
💪
conditionals × 11
💪
internet-of-things × 11
💪
for-loop × 11
💻
data-structure × 11
💪
c × 10
💪
file-directory-commands × 10
💪
fifo × 10
💪
operators × 10
💪
directory-management × 10
💪
networking × 10
💪
iot-protocols × 10
💪
coap × 10
💪
applications × 10
💪
sql-programming × 9
💪
performance × 9
💪
functions × 9
💪
error-handling × 9
💪
pointers × 9
💪
commands × 9
💪
while-loop × 9
💪
select × 8
💪
database-management × 8
💪
microcontrollers × 8
💪
listing × 8
💪
web-development × 8
💪
programming × 8
💪
security × 8
💪
http × 8
💪
directories × 8
💪
lifo × 8
💪
c++ × 8
⭐
array × 8
💪
microprocessors × 7
💪
dml × 7
💪
communication × 7
💪
file-system × 7
💪
real-world × 7
💻
list × 7
💪
implementation × 6
💪
memory × 6
💪
lists × 6
💪
iot-security × 6
💪
exception-handling × 6
💪
cloud × 6
💪
indexing × 6
💪
html × 6
💪
file-operations × 6
💪
file-creation × 6
💪
linked-list × 6
💪
keywords × 6
💪
data-retrieval × 6
💪
hidden-files × 6
💪
micropython × 6
💪
architecture × 6
💪
methods × 6
💻
frequency × 6
💪
libraries × 5
💪
rest × 5
💪
directory-removal × 5
💪
analysis × 5
💪
crud-operations × 5
💪
permissions × 5
💪
creation × 5
💪
hardware × 5
💪
data-manipulation × 5
💪
iot-applications × 5
💪
aggregation × 5
💪
conditional-statements × 5
💪
control-flow-structures × 5
💪
complexity × 5
💪
projection × 5
💪
file-copy × 5
💻
simulation × 5
💻
filtering × 5
💪
smart-home × 4
💪
web-scraping × 4
💪
directory × 4
💪
css × 4
💪
iot-communication × 4
💪
flask × 4
💪
files × 4
💪
authentication × 4
💪
time-complexity × 4
💪
basic-commands × 4
💪
peek × 4
💪
wireless × 4
💪
ddl × 4
💪
basic-sql × 4
💪
hashing × 4
💪
disk-usage × 4
💪
embedded × 4
💪
publish-subscribe × 4
💪
ternary-operator × 4
💪
iot-platforms × 4
💪
cybersecurity × 4
💪
continue-statement × 4
💪
file-permissions × 4
💪
json × 4
💪
circular-queue × 4
💪
java × 4
💪
if-else × 4
💪
output × 4
💪
recursion × 4
⭐
strings × 4
💪
update-command × 3
💪
api-design × 3
💪
control-structures × 3
💪
dynamic-memory × 3
💪
find × 3
💪
if-elif-else × 3
💪
directory-operations × 3
💪
beginner × 3
💪
directory-creation × 3
💪
iot-sensors × 3
💪
practical × 3
💪
edge-computing × 3
💪
io × 3
💪
package-management × 3
💪
cyber-security × 3
💪
pointer-arithmetic × 3
💪
file-and-directory-commands × 3
💪
data-extraction × 3
💪
nested-loops × 3
💪
differences × 3
💪
use-cases × 3
💪
sql-commands × 3
💪
http-status-codes × 3
💪
sql-syntax × 3
💪
branching × 3
💪
break-statement × 3
💪
current-directory × 3
💪
gateway × 3
💪
string × 3
💪
debugging × 3
💪
memory-management × 3
💪
timing × 3
💪
dds × 3
💪
boolean × 3
💪
group-by × 3
💪
components × 3
💪
machine-learning × 3
💪
iot-devices × 3
💪
data-insertion × 3
💪
xmpp × 3
💪
cleanup × 3
💪
directory-navigation × 3
💪
data × 3
💪
graphs × 3
💪
file-directory × 3
💪
shell × 3
💪
analogy × 3
💪
move × 3
💪
comments × 3
💪
switch-case × 3
💪
standard-library × 3
💪
semantics × 3
💪
api × 3
💪
http-methods × 3
💪
device-management × 3
💪
sensors × 3
💪
routing × 3
💪
where-clause × 3
💪
connectivity × 3
💪
secure-coding × 3
💪
break × 3
💪
database-creation × 3
💪
read × 3
💪
registers × 3
💻
merge × 3
💻
string-manipulation × 3
💻
merging × 3
💻
sequence × 3
💻
unique × 3
💻
code-optimization × 3
💪
atomic-update × 2
💪
dpkg × 2
💪
message-queuing × 2
💪
interrupts × 2
💪
memory-layout × 2
💪
encryption × 2
💪
switch × 2
💪
restful-apis × 2
💪
real-life × 2
💪
basic-operations × 2
💪
social-engineering × 2
💪
networks × 2
💪
iiot × 2
💪
for-else × 2
💪
logic × 2
💪
healthcare × 2
💪
queue × 2
💪
file-and-directory × 2
💪
sql-command × 2
💪
operating-systems × 2
💪
try-except × 2
💪
delete-operation × 2
💪
network-security × 2
💪
else-clause × 2
💪
8086 × 2
💪
indices × 2
💪
undefined × 2
💪
query-filter × 2
💪
data-analysis × 2
💪
peripherals × 2
💪
stack × 2
💪
apt × 2
💪
bfs × 2
💪
syntax-semantics × 2
💪
lpwan × 2
💪
xml × 2
💪
typography × 2
💪
conditional × 2
💪
inspection × 2
💪
tools × 2
💪
create × 2
💪
django × 2
💪
underflow × 2
💪
concepts × 2
💪
function-pointers × 2
💪
patterns × 2
💪
iot-actuators × 2
💪
beautifulsoup × 2
💪
messaging × 2
💪
examples × 2
💪
programming-language × 2
💪
data-filter × 2
💪
data-protection × 2
💪
gpio × 2
💪
file-movement × 2
💪
identifiers × 2
💪
insert-operation × 2
💪
constrained-devices × 2
💪
data-processing × 2
💪
iot-advantages × 2
💪
switch-statement × 2
💪
embedded-systems × 2
💪
loop × 2
💪
type-coercion × 2
💪
method × 2
💪
debian × 2
💪
classes × 2
💪
data-format × 2
💪
basic × 2
💪
count × 2
💪
document-structure × 2
💪
amqp × 2
💪
internet-protocols × 2
💪
pass-statement × 2
💪
http-requests × 2
💪
non-volatile × 2
💪
introspection × 2
💪
update-operation × 2
💪
function × 2
💪
operation × 2
💪
filesystem × 2
💪
undefined-behavior × 2
💪
built-ins × 2
💪
sql-queries × 2
💪
actuators × 2
💪
accessibility × 2
💪
placeholders × 2
💪
iot-components × 2
💪
headers × 2
💪
path × 2
💪
iot-cloud-integration × 2
💪
file-listing × 2
💪
selectors × 2
💪
pandas × 2
💪
nosql × 2
💪
options × 2
💪
backup × 2
💪
modules × 2
💪
timers × 2
💪
flow-control × 2
💪
integration × 2
💪
data-definition-language × 2
💪
selection × 2
💪
frameworks × 2
💪
if-statement × 2
💪
conceptual × 2
💪
power-management × 2
💪
type-safety × 2
💪
repl × 2
💪
digital-circuits × 2
💪
deletion × 2
💪
goto-statement × 2
💪
zigbee × 2
💪
table-modification × 2
💪
library × 2
💪
data-integrity × 2
💪
structure × 2
💪
upsert × 2
💪
easy × 2
💻
dictionary × 2
💻
caching × 2
💻
memoization × 2
💻
calculation × 2
💻
reordering × 2
💻
algorithm × 2
💻
hash-map × 2
💻
arithmetic × 2
💻
greedy × 2
💻
queue-simulation × 2
💻
scripting × 2