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Hacktoberfest is back! A Month of Open Source AI, In Person and Online 🎃

AI belongs to everyone. Join a Fest near you, build during Global Hack Week, and collect stickers all October to earn swag and raffle entries.

Happy Hacktoberfest!

Jess Lee for Major League Hacking (MLH)

Oct 1

Everything You Need To Know About Hacktoberfest 2026: AI Belongs to Everyone 🎃

#hacktoberfest #opensource #ai #devchallenge

8 min read

Bypassing GitHub's strict sandbox via SVGs

Giorgi Kobaidze

Oct 1

I Turned My GitHub Profile Into a Cyberpunk Console With a City Built From My Contributions

#showdev #python #github #design

176

15 min read

Community shares diverse personal achievements

Jess Lee for The DEV Team

Oct 2

What was your win this week?

#weeklyretro

1 min read

Sanity Challenge Path One Submission

Emma Sofia

Oct 5

Broadcast and Get Hit, Go Dark and Void $65M: I Built NAVI-SANCTION with Sanity to Break the Deadlock

#devchallenge #sanitychallenge #sanity #ai

8 min read

Sanity Challenge Path One Submission

Dhruv Jani

Oct 4

OriginTrace: Protecting the DEV Community from Content Theft using Sanity Context MCP

#devchallenge #sanitychallenge #sanity #ai

7 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Dhruv Jani

Oct 4

Gift Hunter: An AI Agent That Finds Gifts They’ll Actually Want

#showdev #devchallenge #weekendchallenge #hf26challenge

4 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Soumyadeep Dey

Oct 4

I Played Out a Broke Student's Month 500 Times on a Budget i3 Laptop With the Wi-Fi Off. It Warned Him Ahead in 4 of 5 Bad Months.

#devchallenge #weekendchallenge #hf26challenge #opensource

22 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Emma Sofia

Oct 4

Before the Alarm Screams at 3 AM: Predicting Liam's Nocturnal Hypoglycemia with Prior Labs TabPFN

#hf26challenge #weekendchallenge #devchallenge #ai

10 min read

Includes video and contributor perks

Anthony Max

Oct 3

EmbedCatalog is participating in Hacktoberfest 2026

#webdev #javascript #programming #opensource

134

2 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Anna Villarreal

Oct 5

⚡ Dad Complains About Electric Bill, So I Built Him an Energy Dashboard and Found the Panels Lied ⚡

#devchallenge #weekendchallenge #hf26challenge #opensource

7 min read

James Anderson

Oct 5

The Witness Was the Suspect: Why AI Audit Logs Can't Be Trusted

#discuss #ai #security #agents

9 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Ashley Childress

Oct 4

20+ Years of Friendship. One Weekend to Build His Marketing Department.

#devchallenge #weekendchallenge #hf26challenge #gemma

7 min read

Organized entirely by a solo student

Dhruv Jani

Oct 2

Hacktoberfest Is Coming to Nadiad, Gujarat 🚀 Official MLH Meetup at DDU, 15 Oct

#hacktoberfest #opensource #ai #beginners

4 min read

Hacktoberfest: Maintainer Spotlight

Vidisha Gupta

Oct 5

I Built a Recipe Book for My Dadi, Using AI That Never Leaves My Laptop

#devchallenge #hacktoberfest #opensource #ai

4 min read

Liz

Oct 4

The time I screwed up a conference talk (And the talk on Pydantic I would have given)

#techtalks #devrel #python

11 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Subarna Maity

Oct 4

The groove is the 40 milliseconds a grid throws away, so we built a beat studio that gives them back, in a browser tab

#devchallenge #weekendchallenge #hf26challenge #opensource

15 min read

Earl Grey

Oct 4

A Builder in New Orleans: When Your Vibecoded App Comes on Vacation

#ai #webdev #buildinpublic #vibecoding

9 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Reet Singh

Oct 5

Maa ka Drawer: finding my mother’s bills with Tiger Data and open multilingual search

#devchallenge #weekendchallenge #hf26challenge

5 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

Priyanshu Jha

Oct 5

My friend runs her supplements shop from WhatsApp voice notes, so I built her a shop helper

#devchallenge #weekendchallenge #hf26challenge #ai

7 min read