Ultimate Hackathon Guide for Beginners in 2026

You're about to participate in your first hackathon, congratulations! You're in for an exciting, exhausting, and rewarding experience.

You're about to join your first hackathon. Congratulations, you're in for an exciting, exhausting, and rewarding experience.

Whether you're a developer, a designer, or someone with a great idea and no code background at all, a hackathon is one of the fastest ways to turn that idea into something real. AI tools now let non-coders build working prototypes in a day, and agentic AI is starting to change what "building" even means at a hackathon. The door is wider open than it's ever been.

Before you start hacking, here's everything you need to know.

This guide is split into five parts:

• The basics
• AI and agents at hackathons
• Pre-hackathon
• The hackathon itself
• The benefits.

Check out the best AI skills for participating in hackathons.

What is a hackathon?

A hackathon is a design-sprint event where developers, builders, and enthusiasts come together to create a prototype or a finished product in a short window of time, usually a day or a weekend, sometimes a few weeks for hybrid or remote formats.

Companies run hackathons to source fresh ideas and tap into outside expertise. Participants join for the prize money, the networking, the experience, or simply because building under pressure is fun.

Hiring is a growing reason too. More companies use hackathons to see how candidates actually think and build under pressure, not just what's on a CV.

Looking to join your first hackathon? Browse TAIKAI and start building.

How does a hackathon work?

Every hackathon looks a little different depending on the organizer and the industry, but the structure tends to follow the same shape.

There are three formats: on-site, virtual, and hybrid.

The organizer sets the theme and the challenges, then publishes everything you need: timeline, rules, prizes, mentors, judging criteria, FAQs, and where to ask questions.

Registration opens first. Once it closes, there's a window to form teams and pick a challenge. Then the building starts. At the end, teams pitch, judges evaluate, and winners are announced. If your team wins, you'll usually follow up with the host afterward on next steps.

Types of hackathons

Open hackathons are open to anyone. This is the most common format, since it lets companies reach the widest possible pool of builders.

Internal hackathons run inside a single company, often across offices and departments, to align teams around one goal in a short burst.

Hiring hackathons exist purely to identify talent. This format has grown fast as companies compete for people who can actually ship, not just interview well.

AI hackathons are the fastest-growing category right now. Some focus on applied machine learning, others are built entirely around agentic AI, from coding agents to multi-agent systems that plan, build, and test with little human input. A newer format is starting to appear too: hackathons where the participants are AI agents, not people.

You can also slice hackathons by geography or by audience (data scientists, designers, product managers). Pick a type that matches something you care about, you'll build better work and enjoy it more.

Where to find the best hackathons?

AI and agents at hackathons

AI has changed hackathons faster than almost anything else in their history, and it's worth understanding before you show up.

Agentic AI, AI that can plan, take actions, and use tools with limited human input, is now common inside hackathon projects. Where a team used to spend the first hours scaffolding a backend by hand, agentic coding tools now do a lot of that groundwork, shifting the real challenge toward problem framing and product decisions.

TAIKAI has already hosted a hackathon run entirely by autonomous AI agents, no human writing code during the event. It's a sign of where the format is heading: agents as participants, not just tools.

For most beginners, the takeaway is simpler: learn to work with an AI coding assistant before your first event. Use it to scaffold boilerplate, debug faster, and speed up research. The teams that get the most out of a hackathon treat AI as a collaborator, not a shortcut, and can still explain every part of what they ship.

Drawn to AI-native building specifically? Look for events tagged as AI hackathons or agentic AI challenges.

Where to find the best hackathons

Platforms like TAIKAI are the easiest starting point. TAIKAI alone hosts hackathons from 200+ organizations for a global community of over 90,000 builders, both online and in person, including well-known names like Microsoft and Hilti.

Social media is the second-best channel. X and LinkedIn both have active hackathon communities, and most events now run their own Discord for updates and team-finding.

If you want something specific, search by topic. It works well for AI hackathons and agentic AI challenges in particular.

Pre-hackathon

Once you've picked your event, the real preparation starts.

Get to know the host

Learn who's actually behind the event, even if the name is familiar. Large hackathons are often co-hosted with a specialized platform or a startup working in that specific space. Understanding what each host is building and why gives you an edge later, both for your pitch and for the questions you ask mentors.

Take the Building the Future hackathon, for example. Microsoft was the headline organizer, but co-hosts like Galp and GoWithFlow, a startup working on sustainable mobility, shaped the actual challenges. Knowing that context going in changes how you read the brief.

Join the community early

Most hackathons run pre-event workshops, webinars, or AMAs to walk through the challenge and the tools involved. As a beginner, don't skip these. They're where the unwritten rules of the event usually surface.

Get familiar with the tools

Organizers often publish documentation, starter kits, or APIs ahead of time, especially for technical tracks. Many hackathons now include an onboarding period focused specifically on AI tooling, from coding assistants to MCP servers to agent frameworks, so builders can hit the ground running once the clock starts. The Starknet Winter Hackathon is a good example: organizers ran a full onboarding week of workshops and tutorials before the main event so builders could get comfortable with Starknet fundamentals first.

Start forming a team

A good team is the single biggest predictor of a good hackathon. We go deeper on this in our 6 easy tips to win more hackathons article.

Communication channels open early, so use them. Join the Discord or Slack and start talking to people before the event begins.

Complete your TAIKAI profile fully. Team leads search by skills, and an empty profile is easy to scroll past. TAIKAI's matchmaking tool also pairs you with teammates based on your skill set. Pick your hackathon on the challenges page and open the Matchmaking tab to try it.

Beyond the platform, your own network works too. LinkedIn, X, and GitHub are all solid places to find collaborators.

Do your research

Once you understand the challenge, start researching before you start building. Many teams split this up individually, then regroup to compare notes.

AI research is standard practice now. Feed the challenge brief to an AI assistant, or set an agent loose to gather prior art, and you'll save hours you'd otherwise spend digging manually.

Need inspiration? Our article on winning project ideas is a good place to start.

The hackathon

This is it. What you've been preparing for.

Whether it's in-person or remote, skip the sugar and energy drinks. On-site hackathons used to have a reputation as sleepless coding marathons. That's largely gone now, organizers build in real breaks, and remote events remove the physical strain almost entirely.

Dealing with imposter syndrome

Almost everyone feels it at some point: the sense that you don't belong, that everyone else knows more than you do. There's no trick to make it disappear. If it hits, take a step back, breathe, and remember that everyone in that room started exactly where you are now.

A hackathon exists so you can learn and get experience, not the other way around.

Manage your time

Set checkpoints for each task or block so the team can spot problems early and course-correct, instead of discovering a blocker two hours before submission.

Talk to mentors

Mentors are there specifically to unblock you. As a beginner, you'll hit moments where you're stuck, whether it's a technical issue or a question about how far to lean on an AI agent for a given task. Use them.

Deliver a strong pitch

The pitch is where all the work pays off, or doesn't. Even a genuinely good project can underperform if the story doesn't land. A tight, honest pitch that shows the problem, the solution, and why it matters beats a polished deck every time. If AI or agents played a real role in how you built the project, say so. Judges increasingly want to understand not just what you shipped, but how you shipped it. Find how to impress with yours.

Why participate in a hackathon?

Here's what you actually get out of it.

Develop your hard skills

You're building in a real environment against a real deadline, not working through a tutorial. Timeboxed pressure forces decisions you'd otherwise avoid, and increasingly, it forces you to get fluent with AI tools and agents fast, a skill that's becoming as core as any programming language.

Win prizes

Rewards vary by event, and they go well beyond cash: hardware, mentorship slots, training, conference trips, or straight swag.

Get exposure

You're in a room (physical or virtual) full of mentors, experts, and other builders. A standout project, even one that doesn't win, gets noticed. That visibility compounds.

Build your network

Working under pressure with strangers tends to create fast, real bonds. Some of the best professional relationships start randomly during a hackathon, not at a networking event.

Strengthen your CV

Hiring managers look past the credentials list for evidence you can actually build, and know how to work with AI, not just around it. A shipped hackathon project signals initiative in a way a bullet point can't.

Get recruited

Hiring hackathons exist for exactly this. Show up, build well, and you might walk away with more than a prize. We cover how you should prepare for coding challenges in this article.

Have fun

You'll be stretched and occasionally stressed, but hackathons are genuinely enjoyable. Interesting people, free food, and the buzz of building something under a deadline make the exhaustion worth it.

Final thoughts

Start by picking the right type of hackathon, one that matches your interests and current skill level. Social impact, a specific technology, AI hackathons, agentic AI challenges: there's a track for almost anything.

Then prepare. Get your setup ready, sketch an idea, get comfortable with an AI coding assistant if you haven't already.

Then build. That's the whole point.

TAIKAI is a solid place to start. We host hackathon challenges from companies such as Microsoft, Hilti, CASSINI, and the European Comission, alongside a growing number of AI-focused and agentic AI hackathons. Sign up, browse the challenges page, and find something you actually want to build.

Good luck.

Frequently asked questions about hackathons

What is the purpose of a hackathon? To bring people together to build something new, usually software or a working prototype, in a short, focused window of time.

Can beginners participate in hackathons? Yes. Most hackathons welcome all skill levels and include mentorship and workshops specifically to support first-timers.

Can non-coders join hackathons using AI tools? Yes, and it's becoming one of the most common entry points. AI coding assistants let people with no programming background build a working prototype solo, which means designers, marketers, and first-time builders can now ship something real without a technical co-founder. Non-technical roles like product, design, and pitching still matter just as much on a team.

Are hackathons free to attend? Most are free, often with meals and resources included. Some charge a small registration fee, so check the event page.

Why do people join hackathons? To learn fast, meet peers and industry professionals, build something real, and compete for prizes, often all at once.

Is it worth going to a hackathon? Yes. Few formats teach you as much per hour, and the projects and connections you walk away with tend to outlast the event itself.

Are hackathons only for coders? No. Designers, product people, marketers, and anyone who can contribute to solving a problem have a place on a team. AI tools have also lowered the bar for non-technical builders to ship working prototypes solo.

What is an AI hackathon? An AI hackathon is a challenge built specifically around artificial intelligence, whether that means applying machine learning to a problem, building with large language models, or working with agentic AI systems that plan and act with minimal human input. It's currently the fastest-growing hackathon category.

What is agentic AI, and how does it show up in hackathons? Agentic AI refers to AI systems that can take multi-step actions toward a goal, using tools, writing code, or making decisions with limited supervision. In hackathons, this shows up as teams using coding agents to build faster, and increasingly, as dedicated tracks or entire events where agents themselves are the participants.

Do hackathons add value to a resume? Yes. They demonstrate real, timeboxed execution, not just claimed skills.

Can you earn money from a hackathon? Yes, through cash prizes, funding opportunities, or sponsorship interest in your project. On TAIKAI, you can also earn $TKAI tokens.

What's the best programming language for a hackathon? Depends entirely on the challenge. Python and JavaScript cover most general and AI tracks.

How hard is a hackathon? It depends on the event and your experience level, but every hackathon is built to be supportive, with mentors and resources available throughout, not just a pressure test.

How long do hackathons last? Anywhere from 24-48 hours for a sprint format to several weeks for hybrid or asynchronous events.

Which companies host hackathons? Many companies host hackathons, including tech names like Microsoft and Hilti, and platforms like TAIKAI work with organizations across AI, mobility, and public sector challenges. Startups, universities, and public institutions run them too.

Can I enter a hackathon by myself? Yes. Most events welcome solo participants and offer ways to join a team once you're in.

Can you join hackathons remotely? Yes, virtual hackathons are common and let you build and compete from anywhere.

Where do I find hackathons? Our challenges page is a good starting point, with events from organizations ranging from Microsoft to Hilti and the European Commission.

How do I start preparing for a hackathon? Confirm you have the time to commit, then sign up, find teammates, and start researching the challenge before the clock starts.

What should I bring to a hackathon? For remote events: a stable connection, a working laptop, and a headset. For in-person events, check the organizer's list, but bring a charger no matter what.

How do I add a hackathon to my resume? Name the hackathon and host, describe the challenge in a line, and summarize what you built. If you have a TAIKAI profile or portfolio link, include it so people can see the actual project.

What are hackathons like? Fast, social, and a little chaotic in the best way. You'll meet people, form a team, and build something real in a short amount of time. It's a specific kind of feeling you don't get from most other formats.

About TAIKAI

TAIKAI is where builders find hackathons and companies run them. Join a global community of 90,000+ builders, take on challenges from 200+ organizations, from classic software hackathons to AI hackathons and agentic AI challenges, and turn your next idea into something you actually ship.