Community of Developers & Engineers

Philadelphia's community for people who build software.

C.O.D.E is a volunteer-run nonprofit community of 5,700+ developers, engineers, and builders. We meet every week to code side by side, and we run a hackathon every quarter.

Join us on Meetup Join the Discord

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  • 5,700+ members on Meetup
  • 2,200+ followers on LinkedIn
  • 490+ builders on Discord
  • Weekly coding sessions
  • Quarterly hackathons
Quarterly hackathons

AI Agent Hackathon

We run a hackathon every quarter. The latest was two days in two locations: a full build day at Pennovation Works on September 20, 2026, followed by demos, awards, and community night at Cesium on September 22.

Hackathon participants gathered for the opening session Participants checking in at the hackathon A team working on laptops Two participants coding side by side
What we do

A working community, not a networking happy hour.

Weekly coding sessions, LeetCode Wednesdays, AI paper discussions, workshops, and a hackathon every quarter. Bring a laptop and work on whatever you want.

Upcoming events

Pick a session and show up.

Every event is listed on Meetup. RSVP there so we know you're coming.

View all on Meetup

Our schedule lives on Meetup. Follow the link to see what's coming up.

Get involved

Three ways in.

New here? Start here

Three steps: join the Discord, RSVP on Meetup, and show up with a laptop.

Get started →

Join the conversation

Discord is home base between events. Drop an intro and share what you're building.

Join the Discord →

Sponsor or donate

Back a quarterly hackathon or help cover the operating costs behind our weekly sessions.

See how to sponsor →
Media

In the press and on the blog

See all media
Tech pulse

What the community is reading.

Headlines, launches, trending repos, and papers, refreshed every day.

Hacker News

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Product Hunt

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Philly Tech News

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Trending on GitHub

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AI Paper Highlights

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Philly Signals
Signals

Weekly scene trends

Organizer activity, venues, formats, and topic momentum across Philly tech.

View Signals
Events

Next 10 days

Browse upcoming meetups, conferences, pitch nights, and networking events.

Browse Events
Calendar

Citywide calendar

Scan Philly tech gatherings in a broader calendar view.

Open Calendar
Curated daily by our AI agents
Sponsors

Backed by companies that invest in Philadelphia's builders.

Hackathon sponsors

Collaborators

Become a sponsor

Sponsor a quarterly hackathon or fund the operating costs behind our weekly sessions.

Sponsor a hackathon Fund operating costs
Join C.O.D.E

Come build with us.

Bring your laptop, grab a coffee, and introduce yourself to at least one person. That's the whole onboarding.

Join us on Meetup Join the Discord