If you regularly build at hackathons, the hard part is often not finding a project idea—it is finding the right events before registration closes. Hackathon listings are spread across platforms, ecosystems, universities, companies, and local communities. That makes a good aggregator surprisingly useful.
This guide brings together dedicated hackathon discovery sites, major platforms where hackathons are actually hosted, and a few specialist directories that add useful filters, maps, APIs, watchlists, or competition data.
Why use a hackathon aggregator?
A single hackathon platform rarely covers every event. One organizer may use Devpost, another Devfolio, another Unstop, while Web3 teams may publish events through ETHGlobal or DoraHacks. Student events can appear through MLH or Hack Club, and data-science competitions often live on Kaggle.
Aggregators reduce that fragmentation. Instead of checking many calendars manually, you can scan events by deadline, prize pool, location, technology, or event type and then open the original listing when you find something relevant.
Hackathon websites that put more events in one place
1. HackListHQ — AI and Web3-focused discovery
HackListHQ is aimed particularly at builders looking for AI and Web3 opportunities. Its scope goes beyond conventional hackathons: listings can include bounties, grants, builder programs, and jobs. Prize and deadline filters make it easier to narrow down opportunities instead of browsing an unstructured list.
Useful for: AI builders, Web3 developers, bounty hunters, and people looking for builder programs alongside hackathons.
2. HackOdds — compare prize money, registrations, and more
HackOdds takes an aggregation-and-comparison approach. It brings events from multiple platforms together and highlights the relationship between prize money and registrations. Its GitHub integration can also be used to create a more personalised watchlist.
Useful for: developers who want to compare opportunities and keep track of events that fit their interests.
3. HackathonRadar — broad coverage plus developer tooling
HackathonRadar is designed around wide-ranging discovery, covering 50+ platforms according to its site. Its sources include major ecosystems such as Devpost, Devfolio, MLH, ETHGlobal, Unstop, Kaggle, Hack Club, and DoraHacks.
Beyond listings, it offers features such as quality scores, maps, an API, MCP support, and webhooks. That makes it interesting not only for participants but also for developers who want to build their own hackathon-discovery workflows.
Useful for: people who want broad aggregation, location-aware discovery, or programmatic access to hackathon data.
4. EntrantHub — hackathons, coding contests, and AI/ML competitions
EntrantHub combines hackathons with coding contests and AI/ML competitions from multiple platforms. This broader scope is useful if you are not strictly looking for weekend hackathons and also want competitive programming or machine-learning challenges.
Useful for: students, competitive programmers, AI/ML learners, and developers who want several types of technical competitions in one place.
5. Hack Club Hackathons — student-led events
Hack Club Hackathons focuses on free, student-led hackathons. Its discovery experience includes location and virtual-event filters, and the platform provides a public JSON API.
Useful for: students and organizers looking for accessible, student-oriented hackathon opportunities.
6. Hack Events — hackathons plus the wider developer-event calendar
Hack Events covers hackathons alongside meetups and conferences. Its calendar-oriented approach can be useful when you want to plan your developer events more broadly rather than treating hackathons as a separate category.
The site also provides API and MCP-related functionality, making it relevant to developers who want event information in their own tools or workflows.
Useful for: developers who attend hackathons, meetups, and conferences and want them in one calendar.
7. Hackamaps — find physical hackathons on a map
Hackamaps takes a map-first approach to hackathon discovery. That is especially helpful for people who care about in-person events and want to see where builder communities are gathering geographically.
Useful for: people looking for local, in-person hackathons and opportunities to meet other builders face to face.
Popular hackathon platforms you should also know
Aggregators are useful for discovery, but the original hosting platform is still where you will usually find the full rules, submission requirements, judging criteria, sponsors, FAQs, and registration flow.
- Devpost — one of the best-known platforms for online and in-person hackathons, with events from companies, universities, communities, and developer ecosystems.
- Devfolio — widely used for developer events and hackathons, particularly in India and the Web3 ecosystem.
- Major League Hacking (MLH) — a major student-hackathon ecosystem, especially useful for finding collegiate and community events.
- ETHGlobal — a prominent destination for Ethereum and Web3 hackathons, including both online and in-person events.
- Unstop — hosts and lists hackathons alongside competitions, challenges, internships, and other student and early-career opportunities.
- Kaggle — best known for data-science and machine-learning competitions, but relevant to builders who want competition-based projects and datasets.
- Hack Club — a strong resource for student builders and youth-focused programming communities.
- DoraHacks — a major Web3-focused ecosystem for hackathons, bounties, and developer programs.
Which type of hackathon site should you use?
| If you want… | Look at… |
|---|---|
| AI and Web3 opportunities beyond hackathons | HackListHQ |
| Prize and registration comparisons | HackOdds |
| Broad multi-platform aggregation | HackathonRadar |
| Hackathons plus coding and AI/ML contests | EntrantHub |
| Student-led and virtual/local hackathons | Hack Club Hackathons |
| Hackathons, meetups, and conferences together | Hack Events |
| In-person hackathons by location | Hackamaps |
How to find better hackathons without checking every website
Start with an aggregator to build a shortlist, then open the original event page before registering. Check the deadline, eligibility, team-size rules, required technologies, submission format, judging criteria, prize conditions, and whether the event is online or in person.
It is also worth separating events by what you actually want from them. A large prize pool is not the only useful signal: a focused theme can produce a better portfolio project, a local event can be valuable for networking, and a smaller competition may give you more time with mentors or organizers.
For frequent participants, a practical workflow is to use one broad aggregator such as HackathonRadar, a specialist source such as HackListHQ or Hackamaps, and then the original hosting platform for final registration and rules. That gives you broad discovery without losing the authoritative event details.
Final takeaway
The hackathon ecosystem is too fragmented for a single website to contain everything. The seven discovery tools above make that landscape easier to navigate, while platforms such as Devpost, Devfolio, MLH, ETHGlobal, Unstop, Kaggle, Hack Club, and DoraHacks remain important places to check directly.
If you are serious about participating regularly, the biggest advantage is not finding one perfect website. It is building a repeatable discovery system: aggregate broadly, filter aggressively, verify details on the original event page, and keep a shortlist of events that match your skills, schedule, and goals.
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