Grow Ethereum

A virtual hackathon to level-up the Ethereum world computer, from scalability and UX to the next generation of decentralized applications. Hackathon challenges will be posted as bounties, with t...

ethereum

Submission deadline Aug. 15, 2019, 11 p.m.

Beyond Blockchain

Beyond Blockchain is a focused event around a theme of taking blockchain tools and technologies to a broader audience. It is a three-week virtual hackathon from June 24th – July 10th. Developer...

gitcoin ethereum

Registration closes June 24, 2019, midnight
Submission deadline July 10, 2019, midnight

Klaytn Hackathon

This is Klaytn’s first blockchain hackathon where developers can create BApps (Blockchain Applications) on the Klaytn’s public testnet. Prizes: 150 KLAY for all teams that submit a valid projec...

Klaytn klay

Registration closes May 31, 2019, 2:59 p.m.
Submission deadline May 31, 2019, 2:59 p.m.

Devery Hackathon 2019

Devery is a decentralized protocol for developers to integrate blockchain verification technology. DeveryJS is the JavaScript framework that allows applications to interact with smart contracts ...

protocol devery

Registration closes May 13, 2019, midnight
Submission deadline May 26, 2019, 11 p.m.

0x + CoinList Hackathon

From the website: "0x has teamed up with CoinList to host an online hackathon that challenges developers, designers, and idea generators to build useful and usable products on top of 0x. We wan...

0x ZRX

Registration closes Feb. 7, 2019, midnight
Submission deadline Jan. 7, 2019, midnight

TRON Accelerator

TRON Accelerator is a program aiming to foster innovation within the blockchain industry. It consists of a online competition where developers build decentralized applications on top of the TRON pr...

dapps TRON

Registration closes Jan. 1, 2019, 11:59 p.m.
Submission deadline Jan. 4, 2019, 11:59 p.m.

OST Mainnet Bounty Challenge #1

OST is organizing a new challenge, at the time when they launched their product on the Mainnet. This Challenge is related to security and take the form of a bug bounty program. Participants are...

ost security

Registration closes Sept. 30, 2018, 1 p.m.
Submission deadline Sept. 30, 2018, 1 p.m.

NEO Creative Design Competition

In this competition the objective is to create a new design and image to the NEO project. As it is stated on their website: "The competition calls on creative individuals to help NEO improve its...

design neo

Registration closes Oct. 14, 2018, midnight
Submission deadline Oct. 14, 2018, midnight

HackAtom3: Security & Operations Tools

Cosmos describes itself as the "Internet of Blockchains" and it is running an competition with the objective of improving certain aspects and tooling for their validators. For the category of "...

cosmos

Registration closes Oct. 2, 2018, midnight
Submission deadline Oct. 2, 2018, midnight

HackAtom3: Alerting & Monitoring Tools

Cosmos describes itself as the "Internet of Blockchains" and it is running an competition with the objective of improving certain aspects and tooling for their validators. For the category of "...

cosmos

Registration closes Sept. 26, 2018, midnight
Submission deadline Sept. 26, 2018, midnight