3 March, 2026 (Last Updated)

Upcoming International Hackathons

Have you ever wanted to compete on a global stage and collaborate with innovators from around the world? International hackathons give you that opportunity to turn ideas into impactful projects.

These global events bring together developers, designers, and problem solvers to tackle real-world challenges using technology, creativity, and teamwork. They also provide access to mentors, workshops, and international exposure that help participants grow beyond just coding.

In this article, we have listed some of the best international hackathons happening in March 2026, where you can learn, network, and showcase your skills to a worldwide audience.

Overview of Upcoming Global Hackathons

Here’s an overview of the top international hackathons:

S.No.	Hackathon	Registration Deadline	Prize Pool	Registration Link
1	Zerve × HackerEarth – $10,000 Data Challenge	30 March 2026	$10,000	Register here
2	Somnia Reactivity Mini Hackathon	20 March 2026	$3,000	Register here
3	48 Weeks. 48 Blockchains – CODEQUITY	Rolling (Platform: 1 Feb – 31 Dec 2026)	$10,000	Register here
4	FlagOS Open Computing Global Challenge – Season 1	20 May 2026	~$287,000 USD	Register here
5	Liquify Indexer API Hackathon	14 June 2026	$100,000	Register here
6	GNSS 4 Rural-Urban Divide Bridging Hackathon	31 July 2026	Recognition & Ecosystem Exposure	Register here
7	GitLab AI Hackathon	25 March 2026	$65,000	Register here
8	Hackonomics™ 2026	31 March 2026	Trophies & Awards	Register here
9	EnviroCast GEO: From Insight to Impact	21 May 2026	$625+	Register here
10	Amazon Nova AI Hackathon	17 March 2026	$40,000 + $55,000 AWS Credits	Register here

Top International Hackathons in March 2026

International hackathons offer the perfect stage to innovate, collaborate, and grow your skills. Here are the top hackathons upcoming in March 2026 and beyond, along with their key details, prizes, and registration information.

1. Zerve × HackerEarth – $10,000 Data Challenge

The Zerve × HackerEarth $10,000 Data Challenge is a global online data competition where participants analyze real user event data using Zerve’s AI-native notebook platform. The challenge invites individuals to uncover which user behaviors drive long-term success and build reproducible, insight-driven analysis entirely within Zerve.

The total prize pool is $10,000.

Mode: Online

Type: Free

Objective: Identify which user behaviors and workflows predict long-term success using structured event data

Organiser: Zerve × HackerEarth

Eligibility:

Open to data analysts
ML practitioners
Students
Professionals

Team Size: Individual participation only (no teams allowed)

Registration Deadline: 30 March 2026

Start Date: Ongoing

Duration: Flexible (Until 30 March 2026 Submission Deadline)

Rewards & Prizes:

1st Prize: $5,000
2nd Prize: $3,000
3rd Prize: $2,000

2. Somnia Reactivity Mini Hackathon

Somnia Reactivity Mini Hackathon is a global online Web3 hackathon inviting developers to build reactive dApps using Somnia’s Native On-chain Reactivity SDK. The event focuses on real-time, trustless blockchain interactions and encourages participants to experiment with next-generation decentralized applications.

The total prize pool is 3,000 USD.

Mode: Online

Type: Free

Objective: Build functional reactive dApps leveraging Somnia Native On-chain Reactivity SDK

Organiser: Somnia Network (Hosted on DoraHacks)

Eligibility:

Open to global developers and Web3 builders
Individual and team participation allowed

Team Size: Solo or Team Participation (No fixed limit specified)

Registration Deadline: 20 March 2026

Start Date: 25 February 2026

Duration: 24 Days (25 Feb – 20 March 2026)

Rewards & Prizes:

Total Prize Pool: 3,000 USD
300 USD worth SOMI tokens to each winning project
Social media spotlight
Mentorship support
Selected projects featured as tutorials and case studies
Workshop & Support:
Intro to Somnia Reactivity Workshop
Live Office Hours for debugging and feedback

3. 48 Weeks. 48 Blockchains – CODEQUITY

48 Weeks. 48 Blockchains is an intensive 48-week blockchain development marathon designed to help developers master 48 different blockchain ecosystems by shipping production-ready dApps every week. Organized by Codequity, the program focuses on real-world deployments, on-chain credentials, and ecosystem exposure.

The total prize pool is $10,000.

Mode: Online

Type: Free

Objective: Build and deploy 48 production-ready dApps across 48 blockchain ecosystems in 48 consecutive weeks

Organiser: Codequity

Eligibility:

Developers with proficiency in Solidity, JavaScript/TypeScript, Rust, or Move
Full-time availability for 48 weeks
Strong interest in Web3 and blockchain development
Global participation allowed

Team Size: olo or Teams Allowed (No fixed limit specified)

Registration Deadline:

Expected Completion: 15 December 2026
Submission Window (Platform): 1 February 2026 – 31 December 2026

Start Date: 31 January 2026

Duration: 48 weeks

Rewards & Prizes:

Total Prize Pool: $10,000
On-chain NFT credentials for each chain
Mentorship from core developers
Sponsor introductions for top performers
Portfolio of 48+ production-ready dApps
Networking with global Web3 ecosystems

4. FlagOS Open Computing Global Challenge – Season 1

FlagOS Open Computing Global Challenge is a global AI systems competition jointly hosted by FlagOS Community, Beijing Academy of Artificial Intelligence (BAAI), and CCF Open Source Development Technology Committee (ODTC). The challenge focuses on optimizing large language model performance, operator development, and automated data annotation using the FlagOS unified AI software stack.

The total prize pool is approximately $287,000 USD (2 million RMB).

Mode: Online

Type: Free

Objective: Enhance AI system performance through operator optimization, large model inference acceleration, and automated data annotation

Organiser: FlagOS Community × BAAI × CCF ODTC

Eligibility:

Open to individuals and teams worldwide
AI algorithm engineers, system engineers, hardware/compiler developers
Each participant/team can submit to only one track

Team Size: Up to 3

Registration Deadline: 20 May 2026

Start Date: 9 January 2026

Duration: 9 – May 20, 2026

Rewards & Prizes:

1st Prize: 30,000 RMB
2nd Prize: 20,000 RMB
3rd Prize: 10,000 RMB

5. Liquify Indexer API Hackathon: Build the Future of On-Chain Data

Liquify Indexer API Hackathon is a global virtual Web3 hackathon inviting developers to build production-ready applications using Liquify’s high-speed custom contract indexing infrastructure. The challenge focuses on unlocking real-time, adaptable on-chain data solutions across trading, wallet analytics, and DeFi reporting.

The total prize pool is $100,000.

Mode: Online

Type: Free

Objective: Build production-ready Web3 applications leveraging Liquify’s custom smart contract indexing API

Organiser: Liquify

Eligibility: Open to global Web3 developers and builders

Team Size: Individual or team participation allowed

Registration Deadline: 14 June 2026

Start Date: 21 January 2026

Duration: Q1 – Q2 2026

Rewards & Prizes:

Total Prize Pool: $100,000
Cash Prizes: $1,000 – $5,000 per category winner
Infrastructure Credits: Liquify RPC & Indexing credits (major portion of prize pool)

6. GNSS 4 Rural-Urban Divide Bridging (G4R-UDB) Hackathon

GNSS 4 Rural-Urban Divide Bridging (G4R-UDB) Hackathon is a virtual innovation challenge organized by SATNAV AFRICA JPO, focused on leveraging GNSS and space-based technologies to bridge the rural-urban divide. Participants will build impactful, technology-driven solutions that improve connectivity, environmental monitoring, agriculture, and emergency response systems.

Mode: Online

Type: Free

Objective: Develop GNSS-powered solutions addressing rural-urban development gaps

Organiser: SATNAV AFRICA JPO

Eligibility:

Open to developers
Researchers
Students
Innovators interested in GNSS and space technologies

Team Size: Not Specified

Registration Deadline: 31 July 2026

Start Date: 30 June 2026

Duration: 1 months

Rewards & Prizes: Recognition and ecosystem exposure

7. GitLab AI Hackathon – “You Orchestrate. AI Accelerates.”

GitLab AI Hackathon is a global online hackathon hosted by GitLab and managed by Devpost, inviting developers to build AI agents using the GitLab Duo Agent Platform. Participants will create workflow-driven AI agents that automate planning, security, compliance, testing, and deployments across the software development lifecycle.

The total prize pool is $65,000 in cash.

Mode: Online

Type: Free

Objective: Build AI agents or agent flows that automate and accelerate secure software development inside GitLab

Organiser: GitLab (Managed by Devpost)

Eligibility: Open to most countries worldwide (standard exceptions apply)

Team Size: Individual or team participation allowed

Registration Deadline: 25 March 2026

Start Date: Ongoing

Duration: Ongoing until deadline

Rewards & Prizes: $15,000

8. Hackonomics™ 2026

Hackonomics™ 2026 is an online, beginner-friendly hackathon designed to explore the intersection of Computer Science and Economics. Open to students worldwide, the event encourages participants to build projects that promote financial literacy and economic awareness within their communities

Mode: Online

Type: Free

Objective: Create innovative projects that spread awareness about financial literacy and economics using technology

Organiser: Hackonomics

Eligibility:

Students only
Ages 13+
Open globally

Team Size: Individual or team participation allowed

Registration Deadline: 31 March 2026

Start Date: Live

Duration: Ongoing until submission deadline

Rewards & Prizes:

Attractive Trophies
Design Award
Techincal Award

9. EnviroCast GEO: From Insight to Impact Hackathon

EnviroCast Global Engineering Outlook (GEO) Hackathon is an international, student-led online hackathon inviting students worldwide to build impactful technology solutions. With an open-ended theme, participants can create apps, AI tools, hardware prototypes, robotics projects, or any innovation that transforms insight into real-world impact.

The total cash prize pool is $625+, along with additional sponsor credits and mentorship opportunities.

Mode: Online

Type: Free

Objective: Build ethical, transparent, and impactful technology solutions aligned with the theme “From Insight to Impact”

Organiser: EnviroCast

Eligibility:

Students only
Ages 13+
Open globally

Team Size: Individual or team participation allowed

Registration Deadline: 21 May 2026

Start Date: Currently Live

Duration: Ongoing until submission deadline

Rewards & Prizes:

1st Place – $320 cash + $300 Featherless credits + MeDo membership + Mentorship
2nd Place – $170 cash + $150 Featherless credits + MeDo membership
3rd Place – $95 cash + $75 Featherless credits + MeDo membership
4th Place – $20 cash + MeDo membership
5th Place – $20 cash + MeDo membership
TruthInTech Transparency Prize – Special recognition

10. Amazon Nova AI Hackathon – Build Your Way with Amazon Nova

Amazon Nova AI Hackathon is a global online hackathon hosted by Amazon and managed by Devpost, inviting developers to build innovative generative AI applications using Amazon Nova foundation models and services on AWS.

The total prize pool includes $40,000 in cash + $55,000 in AWS credits.

Mode: Online

Type: Free

Objective: Build impactful generative AI applications using Amazon Nova foundation models and/or Nova Act service

Organiser: Amazon (Managed by Devpost)

Eligibility:

Ages 18+
Open globally

Team Size: Individual, Team, or Organization participation allowed

Registration Deadline: 17 March 2026

Start Date: Live

Duration: ~2 months

Rewards & Prizes:

First Prize: $15,000 cash + $5,000 AWS credits
Second Prize: $7,000 cash + $5,000 AWS credits
$3,000 cash + $5,000 AWS credits

Final Words

International hackathons open doors to global collaboration, learning, and innovation. Participating in these events helps you gain experience, build connections, and showcase your skills to the world.

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FAQs

1. What are the top upcoming international hackathons to look out for?

Top upcoming international hackathons include the Amazon Nova AI Hackathon, GitLab AI Hackathon, Liquify Indexer API Hackathon, and FlagOS Global Challenge. These events offer large prize pools, global exposure, and opportunities to build real-world AI and Web3 projects.

2. How can I find details about upcoming international hackathons?

You can find details about upcoming international hackathons on official websites, as well as on platforms like Unstop, Devpost, and Devfolio, and on the company pages of global tech leaders such as Google or AWS.

3. Who can participate in international hackathons?

International hackathons are open to students, developers, and innovators worldwide who want to collaborate, learn, and build impactful technology-driven projects.

4. How do I register for international hackathons?

You can register for international hackathons online by visiting the event’s official page, filling out the registration form, and submitting your project idea or proposal.

5. How can I prepare for an international hackathon?

To prepare for an international hackathon, review the problem statements, practice teamwork, study key technologies, and focus on creating a working prototype.

6. What are the benefits of participating in international hackathons?

Participating in international hackathons helps you enhance your skills, network globally, gain mentorship, and explore potential career or startup opportunities.

Aarthy R

Aarthy is a passionate technical writer with diverse experience in web development, Web 3.0, AI, ML, and technical documentation. She has won over six national-level hackathons and blogathons. Additionally, she mentors students across communities, simplifying complex tech concepts for learners.