×
Looking to donate to projects in Gitcoin Grants Beta Round? Support here.

Hey Hackers, go build cool stuff

Build a bunch of cool stuff, learn new tech, support the open source ecosystem, and earn cash and prizes!

Explore Hackathons

To build out the future of identity, we want to create the next generation of use cases which use Concordium’s ID layer

Sponsored by

Mantle Mash Hackathon

-

Mantle Mash is a 3-week online hackathon for anyone interested in building on Mantle, a new Ethereum layer-2 network with modular design, low fees, and high security. The total bounty awards for Mantle Mash is $20,000 paid in $BIT.

Sponsored by

Algorand Greenhouse Hack 3

-

Algorand has partnered with Gitcoin to bring you the first of the Greenhouse Hacks series. Join us for this 4-part bounty series designed to grow new ideas from across the world.

Sponsored by

12 Days of Hacxmas

-

Leading up to the holidays we are hosting our last open hackathon of the year on Gitcoin.co! Join the festivities and celebrate with us another year of buidling.

Sponsored by

Ubeswap Destiny Hackathon

-

Join us as Ubeswap evolves to reach its destiny of full community control! The endgame of complete decentralization is near. Unite with other Great Ape minds at the Ubeswap Discord discussion table and share in the purple potato feast!

Sponsored by

A hackathon for cross-chain connected applications. This hackathon is the perfect place to experiment with Connected Contracts approaches to your DApps, with guidance and mentorship from protocol experts.

Sponsored by

We invite you to help build the future of gaming on Tezos! Block Born is launching various XTZ Bounties focused on problems that current developers in the space are looking to solve.

Sponsored by

Everscale Elysium

-

The Everscale Elysium hackathon will bring new developers and promising projects to the ecosystem. Seize your chance to dive into one of the most promising technologies and take your place in the cross-chain

Sponsored by

Social Hour

-

The Social Hour hackathon is about walking the talk. It’s about disrupting the centralized services that has a firm grasp over our digital lives. It’s about transition, a transition from web2 standards to a higher dimension. It’s time for social in web3.

Sponsored by

Our first Creator Monetization Hackathon — invites you to experiment and innovate with ideas that will allow creators in the Solana NFT space to earn royalties or identify alternative monetization models.

Sponsored by

Reserve’s mission is to help people around the world fight inflation, and we do this by building tools for people to create and use stable currencies globally.

Sponsored by

BogoHacks 📍 Devcon Week

-

Join us for a 3 day in-person hackathon during Devcon week in Bogota!

Sponsored by
+1

Help Gitcoin protect and improve the funding of public goods

Sponsored by

Algorand Greenhouse Hack 2

-

Algorand has partnered with Gitcoin to bring you the first of the Greenhouse Hacks series. Join us for this 4-part bounty series designed to grow new ideas from across the world.

Sponsored by

I, Game & Robot 🎮 🤖

-

I, Game & Robot" is a global Web3 Robot-vehicle customization mobile game design challenge initiated by DeAutoDAO.

Sponsored by

Metamorphosis 🐛🦋

-

The technology, the knowledge, the tooling, the legos, the friendships, the support; all of it residing within the cocoon. It’s time for metamorphosis.

Sponsored by

Money Legos Hackathon

-

It's time to DeFi conventional finance by #BUIDLing DeFi protocols, DApps and play with the token standards of the future; giving back control of money to the masses.

Sponsored by
+2

LUKSO Build UP! #1

-

Build the next generation of dApps on Universal Profiles

Sponsored by

We want to turn sustainability into a Web3 superpower, and we need your help! If you are a builder interested in laying the foundation for tomorrow’s verifiably sustainable web, come join us.

Sponsored by

Gitcoin Passport Hackathon

-

Sponsored by

Grants Round 14 Hackathon

-

☀️ Sun’s Out, Funds Out! Come dive in to the GR14 Hackathon: ReFi Summer Edition! 🌴 Join Gitcoin’s vibrant community of more than 200,000 builders getting paid to build on open source.

Sponsored by
+4

Builders, designers and creators, unite! Work together with 8 prominent cultural institutions from all around the world to create the building blocks of and open source and decentralized future to empower artists & museums all over the world to enter the possibilities of Web3.

Sponsored by

ETH Shanghai Hackathon

-

Join us to BUIDL the next generation social applications! In the two-week hackathon, we offer a variety of online workshops, grants, mentorship. Come to team up with developers, creators, and entrepreneurs worldwide. You can participate with/without coding background.

Sponsored by
+14

We invite you to join us in building the future of Web3, learn from online workshops, open new grants, and if you can, help fund great projects that are contributing to the public goods ecosystem. Join a sponsored hackathon and team up with new friends!

Sponsored by
+4

Celo Connect Mobile Hackathon

-

The first Celo Connect is being held in from April 4-5th in Barcelona. To celebrate, we are inviting all mobile and web3 builders to join us in person at Attico Bogatell for the Celo Connect Mobile Hackathon.

Sponsored by

We want to invite developers to help us improve how users on Boba deploy and engage with Arweave via Bundlr.

Sponsored by

HackAlgo

-

HackAlgo is a hackathon organized by the top teams of the Algorand ecosystem. Hack Algo is the best way to join the Algorand developer community and work on the most innovative blockchain network.

Sponsored by
+3

Ready Player Casper

-

The purpose of this hackathon is to challenge developers to create fun and interactive games that operate using smart contracts on Casper. There are many bounties and three different difficulty levels, for which any team or individual may attempt.

Sponsored by

Grants Round 13 Hackathon

-

We’d like to invite you to join us to build the future of Web3, learn from online workshops, open new grants, and if you can, help fund great projects that are contributing to the public goods ecosystem. Join a sponsored hackathon and team up with new friends!

Sponsored by
+4

We Are Millions

-

Imagine a society of a completely private digital life where your privacy is not weaponised against you just to sell you more things. Imagine a society where data is used for social good and value is distributed fairly.

Sponsored by

Codeless Conduct

-

Codeless Conduct is a virtual event for web3 enthusiasts from all fields and backgrounds. Participants can deep-dive into different guilds with the help of our mentors, attend various workshops, and complete no-code bounties (alone or in teams).

Sponsored by
+5

Open Web Foundry

-

Arweave is back for their 6th incubation program on Gitcoin.

Sponsored by

In this hackathon, together with partners of the Gitcoin ecosystem, we've put up prizes for the solutions society needs to network people in the spirit of the original promises of democracy, markets, and the internet.

Sponsored by
+8

Grants Round 12 Hackathon

-

The Grants Round 12 Hackathon is Gitcoin's fourth "Stacked Event" to support Ethereum and Web3 by building and donating.

Sponsored by
+12

Game on! Tezos

-

Gaming on Tezos competition - explore the technology of Tezos, and build toys and games that delight, entertain, and help pave the way for blockchain becoming part of our everyday future.

Sponsored by

POAPathon 2021

-

POAPathon 2021 is focused on driving awareness, creativity and utility of the POAP toolset and community.

Sponsored by
+8

Algorand: Bring your A-game

-

Algorand gaming themed exclusive

Sponsored by

Falling for DeFi on Findora

-

Findora is a Layer 1 protocol that uses zero-knowledge proofs, Bulletproofs, and multi-party computation to provide programmable privacy.

Sponsored by

DAO Global Hackathon

-

The Virtual Sprint to Build Governance Primitives, Powered by Leading DAO Infrastructure Providers.

Sponsored by
+13

Join us for 3 weeks of building new tools for DeFi and interoperability between protocols.

Sponsored by
+7

Open Web Foundry

-

Arweave is back for their 5th incubation program on Gitcoin.

Sponsored by

NFTs can be used for more than just tokenising artworks. For this hackathon, we’d like to build on the overall ecosystem forming around the concept of tokenization through NFTs.

Sponsored by

Sovereign Data Hackathon

-

Build powerful new applications and features on open identity and information, powered by Ceramic Network and IDX.

Sponsored by
+2

Casper Labs hosts their first virtual hackathon on Gitcoin!

Sponsored by

Grants Round 11 Hackathon

-

The Grants Round 11 Hackathon is Gitcoin's third "Stacked Event" to support Ethereum and Web3 by building and donating.

Sponsored by
+10

Open DeFi Hackathon

-

Open DeFi returns for their second hackathon on Gitcoin. Build the future of DeFi!

Sponsored by
+9

This 3 week hackathon is focused on building with the tools needed to scale decentralized governance, DAO treasury operations, and crypto-native organizations.

Sponsored by
+3

Bridge the Gap is a month-long hackathon aimed to strengthen the Sperax ecosystem as a whole.

Sponsored by

A Hackathon to bring Traditional Finance to Decentralized Finance. Over $1,000,000 in prizes and seed funding from Harmony and Prize Partners.

Sponsored by

Nervos - Broaden the Spectrum

-

Celebrate Nervos' Gitcoin integration with a kickoff education and onboarding focused hackathon.

Sponsored by

ETH CC Hackathon 2021

-

Dive into DAO x DeFi summer with ETH CC Hackathon 2021. We are excited to bring together over 150 developers, creatives, and experts to work on the future of finance in Paris!

Sponsored by
+13

Open Web Foundry

-

Arweave is back for their 4th incubation program on Gitcoin.

Sponsored by

To kickstart the integration of tez with Gitcoin, and the beginning of a new era of hackathons targeting the Tezos ecosystem, NFT me, you can DAO it a month-long virtual hackathon encourages all talented creators to help expand the NFT and DAO ecosystem on Tezos.

Sponsored by

Grants Round 10 Hackathon

-

The Grants Round 10 Hackathon is Gitcoin's third "Stacked Event" to support Ethereum and Web3 by building and donating.

Sponsored by
+16

Sovrython

-

Sovryn is launching $500k worth of bounties and grants to build DeFi on Bitcoin.

Sponsored by
+1

As NFTs continue to surge in popularity, Zilliqa is aiming to better certain structures and functionalities on the Zilliqa blockchain to improve our community’s experience with NFTs.

Sponsored by

Harmony ONE Love - Round 2

-

Harmony brings us round 2 of ONE love back to back!

Sponsored by

Open Web Community Hackathon

-

We're creating a unique collaborative opportunity for all BUIDLers in NEARverse and the wider open web universe.

Sponsored by

0xHack

-

Borderless, open & decentralized online coding marathon

Sponsored by
+2

Open DeFi Hackathon

-

Open DeFi is hosting their first hackathon on Gitcoin

Sponsored by
+16

Degen.VC Hackathon

-

Degen VC makes it simple and fair to launch new projects.

Sponsored by

RSK is now fully integrated on Gitcoin, and launching this inaugural Gitcoin hackathon!

Sponsored by

Skynet’s Spring 2021 hackathon focuses on content and media, and features 3 phases to engage developers and non-developers alike.

Sponsored by

MetaFest

-

True to the mission of building a better world, MetaFam putting its money where its mouth is and encouraging all that is good for our closer as well as wider ecosystem!

Sponsored by

Harmony ONE Love - Round 1

-

Harmony is back with another hackathon featuring 14 new bounties.

Sponsored by

Green NFT Hackathon

-

Green NFTs - Bounties For More Ecologically Friendly NFTs (Non-fungible Tokens)

Sponsored by

Grants Round 9 Hackathon

-

The Grants Round 9 Hackathon is Gitcoin's second "Stacked Event" to support Ethereum and Web3 by building and donating.

Sponsored by
+12

We are calling on all builders, designers and innovators to come help us take the Celo ecosystem to the next level.

Sponsored by

Open Web Foundry by Arweave

-

The Open Web Foundry is a six-week programme where founders learn, build, and pitch to top-tier investors for a chance to launch an amazing new venture on Arweave.

Sponsored by

Build on the 100% evm compatible, low cost, high performance platform - BSC.

Sponsored by

The Baseline Protocol is a public domain open source initiative that combines advances in cryptography, messaging, and blockchain to deliver secure and private business processes at low cost via the public Ethereum Mainnet.

Sponsored by

Golem Network Hackathon

-

The first Golem Network hackathon is a one-month-long online hackathon designed to allow developers to build on top of the platform, and compete for prizes.

Sponsored by

Grants Round 8 Hackathon

-

This hackathon is an opportunity to rally the community not just around funding projects they care about, but helping them build as well.

Sponsored by
+18

Hack the Horizon

-

Hack the Horizon is a collaborative, creative, and inclusive cross-chain hackathon focused on building applications that utilize the Horizon Bridge.

Sponsored by

Oasis Network Quest Hackathon

-

Oasis invites developers from around the world to join our exciting quest to build a better, brighter future with Open Data and Open Finance!

Sponsored by

We're excited to engage the Gitcoin developer community in our quest to accelerate network security on PoW blockchains.

Sponsored by

The SkyDB Debut

-

With SkyDB developers can now create applications that allow for content to be edited without worrying about sending users an updated Skylink.

Sponsored by

Conflux Network is excited to launch our first virtual hackathon Hacking Decentralized Commerce in collaboration with Gitcoin!

Sponsored by

Sögur Bug Bounty & Hackathon

-

SGR by Sögur - previously known as Saga // SGA - is a digital coin built to provide a self-sustaining, democratic and global currency.

Sponsored by

The East African Virtual Hackathon is a six-week virtual programming marathon for innovative young developers in Eastern Africa to design and implement block chain- based software applications in solving real world challenges on anti-corruption.

Sponsored by

Hacking with $XSGD on Zilliqa

-

BUIDL with $XSGD-ZRC2 is StraitsX’s first Hackathon that is hosted in collaboration with Zilliqa, a high-performance, high-security blockchain platform.

Sponsored by

Hello World! by Polkadot

-

Gitcoin has integrated Polkadot and Kusama tokens (DOT and KSM) into its tech stack, making us one of the first full integrations outside of the Ethereum ecosystem.

Sponsored by

Arweave Open Web Fellowship

-

The Open Web Fellowship is a six-week programme offering an investment pool of $100,000 which will be granted to winning profit sharing communities on the Arweave network

Sponsored by

Seed Club Hacks

-

Introducing the first open hackathon for tokenized communities.

Sponsored by

Untitled NFT Hackathon

-

Sponsored by

The hackathon includes a variety of bounties on Quadratic Funding. It brings together creative companies, non-profits, governments, and individuals, who would like to incentivize more democratic public goods governance in the context of their cause.

Sponsored by
+3

As part of the Witnet Testnet Incentive Program, the Witnet Foundation has allocated up to 30,000 $DAI to hackers, builders and bug-hunters

Sponsored by

Hack the Rainbow

-

Hack the Rainbow is NEAR’s first MOOH! (Massive Open Online Hackathon) and is primarily focused on building bridges between NEAR and the Ethereum ecosystems.

Sponsored by
+3

GoodDollar has recently launched its basic income protocol. This bug bounty challenge serves to stress-test the GoodDollar smart contracts.

Sponsored by

Build your DApp with Cartesi - $80k+ in prizes for the top 3 projects

Sponsored by

APOLLO

-

Sponsored by
+3

DAO Hack Month

-

Sponsored by
+4

Unitize (SFBW) Hackathon

-

Sponsored by
+1

Arweave Open Web Incubator

-

Sponsored by

Protect Privacy

-

Sponsored by
+5

GitxChange

-

Sponsored by

New York Blockchain Week

-

Sponsored by
+9

Cross-Chain Hackathon

-

Sponsored by

Harmony: Stake Heist

-

Sponsored by

Stop COVID-19

-

Sponsored by

Funding the Future

-

Sponsored by
+1

Skynet Hackathon

-

Sponsored by

Sponsored by

Sustain Web3

-

Sponsored by
+3

Web3 World

-

Want to become a sponsor or run an exclusive hackathon on Gitcoin?
/*

Get the latest on Gitcoin

Subscribe for news, events, and announcements.
*/

Why Join Hackathons on Gitcoin?

Earn a living while making the world a better place. Explore the experimental edge of Web3 with like-minded peers.
superfluid-finance snapshot-labs 1inch-exchange dimensiondev keep-network randlabs hausdao oceanprotocol arweaveteam elastos harmony-one ledgerhq beefyfinance figment-networks maticnetwork maticnetwork metisprotocol cyberconnecthq pokt-foundation poap-xyz covalenthq algorandfoundation ledgerhq tezos-contrib honest-protocol ledgerhq cosmos gridplus ensdomains block-born gnosis idena-network ceramicnetwork

I think the great thing about Gitcoin is how easy it is for projects to reach out to worldwide talent. Gitcoin helps to find people who have time to contribute and increase speed of project development. Thanks to Gitcoin a bunch of interesting OpenSource projects got my attention!

@cryptomental
Front End Developer

@cryptomental

How to get started

Explore hackathons
Join the Hackathons that best fit your skills.
Select a prize
Choose the prizes you think will be fun to work on.
> deploy code
Get after it!
Select “Start Work” to indicate your participation.

Ready to get started?

Build cool stuff, learn new tech, support the open source ecosystem, and earn cash and prizes!