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Daily AlpacaHack

A CTF challenge series with fun puzzles to enjoy every day

What is Daily AlpacaHack?

We regularly publish simple, beginner-friendly or educational CTF challenges!

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Solve each challenge within its time window to appear on the leaderboard.

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Discussion with friends or AI is welcome (account sharing is prohibited).

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Today's Challenge
tchentchen
List Sharing
Web
Medium
45 solves
Submissions (latest 3)
logdav

SOLVED!

Aug 16, 9:00 PM

Leaderboard

Try the first challenge

Is this your first CTF? Let's begin by tackling the first challenge released on Daily AlpacaHack.

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admin
AlpacaHack 2100
Misc
Welcome🌱
2,125 solves
Upcoming challenges reveal the , , and in advance.
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Aug 2026

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27
tchentchen
RFC100008
Web
Easy🌱
128 solves
28
2501
One More Approval
Crypto
Medium
61 solves
29
2501
zen.zip
Misc
Medium
67 solves
30
2501
Anyrunner
Misc
Medium
59 solves
31
tchentchen
Small Image Uploader 2
Web
Medium
61 solves
1
admin
Día Nacional de la Alpaca
Misc
Welcome🌱
199 solves
2
2501
Password, Please
Misc
Easy🌱
160 solves
3-4
arkark
Long Long Flag Printer 2026
Misc
Medium
85 solves
5
pppp4649pppp4649
Happy Birthday
Crypto
Easy🌱
105 solves
6-8
hiikunzhiikunz
AESAESAESAESAESAES
Crypto
Hard
55 solves
9-10
tchentchen
Not so Pyf**k
Misc
Medium
74 solves
 
tchentchen
Not so Pyf**k
Misc
Medium
74 solves
11-12
baumroll1234
Fermat's Last Theorem
Misc
Medium
70 solves
13-15
tchentchen
True or False 2
Misc
Hard
45 solves
16-17
tchentchen
List Sharing
Web
Medium
45 solves
 
tchentchen
List Sharing
Web
Medium
45 solves
18-20
tan90909090tan90909090
Planned topicObfuscation
Rev
Hard
21-23
Planned topicPython
Web
Hard
24-26
Planned topicXSS
Web
Hard
27
Coming soon
28
Coming soon
29
Coming soon
30
Coming soon
31
Coming soon
1
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2
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3
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4
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5
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6
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Emojify

Topic: Server-SideReleased: Dec 3, 2025

715 solves
Web
Medium4.5

by

ark

ark

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