short answer
Start where the hackathon itself gathers people: the Participants tab on Devpost, the team page on DoraHacks, the team formation session at ETHGlobal, the teams list and Discord on lablab.ai. Then post once in the organisers' Discord, Slack or WhatsApp group. Say what you build, what you need, your timezone and a profile link. Talk to anyone who replies before kickoff, and keep the team at two to four people.
on this page · 7 parts
Start on the hackathon's own page
The people you want are already registered for the same event, so look there before anywhere else. Most platforms give each hackathon a place for it:
- Devpost. Every hackathon has a Participants tab at its own address, such as
name.devpost.com/participants. You log in to browse it. Devpost's own advice for online events pairs that tab with the event's Slack or Discord. - DoraHacks. Each hackathon has a find-your-teammates page with open roles. Switch on Need Teammates on your build or your registration to list one.
- ETHGlobal. Event schedules include a team formation and idea brainstorming session.
- lablab.ai. The event page lists the teams so far, and its guidelines send people without a team to the lablab Discord.
- Kaggle. Competitions have a discussion forum, where entrants post when they want to merge into a team.
Every open hackathon on Tensor Hack has a find teammates block that links the right one of these for that event, plus any group invite the organisers put in their listing.
Then the organisers' chat
Many hackathons run a Discord, Slack, Telegram or WhatsApp group, and the link is often on the event page or in the confirmation email. Look for a channel named team formation or looking for team and read the pinned message first. Some events ask for a set format.
Post once, then answer replies. Reposting the same message every hour reads as spam, and moderators remove it.
Outside the event
People you already know are the safest bet: a classmate from a course project, a colleague, someone from your last hackathon. A short message to three of them often beats a public post.
- Campus and local groups. University coding clubs and city tech meetups often pair people up before big events.
- In-person events. On Luma, the event page shows who is going when the host turns the guest list on. Arriving early for the opening is the easiest time to meet people without a team.
Write a post people answer
"Looking for a team" gets no replies, because nobody can tell if you fit. Give strangers enough to decide in one read:
- What you build, in one line: "frontend, React and Tailwind, shipped two hackathon demos".
- What you need: "a backend or ML person who can wire up an API".
- Your timezone and the hours you can give.
- One link: GitHub, LinkedIn or a portfolio. Skip your phone number and email in public channels.
If you already have an idea, give it one sentence. A concrete idea attracts people who want to build it.
Pick people, then agree on three things
Have a short call or chat with anyone who replies before you commit. Agree on the size of the idea, the hours each person can give, and who submits the project. MLH recommends teams of one to four, so two to four strangers is plenty; check the team size rules on the event page first.
Split by skill, not by enthusiasm. One person owning the submission page avoids the classic last-hour scramble. The team formation guide covers roles in more detail.
If nobody replies
Ask to join an existing team that lists an open role; that is often faster than starting one. Opportunity Hack's data shows why it is worth the effort: hackers who registered with a team submitted 39.7 percent of the time, hackers looking for a team 17.8 percent, and solo hackers 9.8 percent.
If kickoff arrives and you are still alone, going solo is fine when the rules allow it. Shrink the idea to one feature you can build, demo and submit yourself. The solo vs team guide helps you decide.
FAQ
Where can I find teammates for a hackathon?
On the hackathon's own platform first: the Devpost Participants tab, the DoraHacks team page, ETHGlobal's team formation session or the lablab.ai teams list. Then in the organisers' Discord, Slack or WhatsApp group.
What should I write in a looking-for-team post?
What you build, what you need, your timezone and hours, and one profile link such as GitHub or LinkedIn. Add your idea in one sentence if you have one.
Can I do a hackathon without a team?
Often yes. Many hackathons accept solo entries; check the team size rules on the event page. Keep a solo idea small enough to build, demo and submit alone.
sources
- Devpost: teamwork tips for online hackathons help.devpost.com
- DoraHacks: find a team dorahacks.io
- ETHGlobal New York 2026: event schedule ethglobal.com
- lablab.ai hackathon guidelines lablab.ai
- MLH rules guide guide.mlh.com
- Opportunity Hack 12-year report ohack.dev
Checked against these pages when published. Rules and dates change, and the organizer's own page is the authority. Spotted an error? Send a correction.