Celo

A simple Ethereum smart contract that simulates drawing random playing cards on the blockchain. Each draw is transparent, recorded on-chain, and linked to the user’s wallet address.

The Blockchain To-Do Manager is a decentralized, smart contract-powered task manager built with Solidity. It helps you manage personal tasks securely and transparently on the Celo Sepolia Testnet 🌐. Simple, clean, and perfect for beginners learning blockchain development! 💡

Humanity needs a green world that will contribute our life

JobApplicationTracker is a beginner-friendly Solidity smart contract that stores job applications immutably and records employer responses in an append‑only history. Applications point to off‑chain applicant data (for example an IPFS CID), while responses (status updates, interview invites, rejections, etc.) are appended by authorized responders and cannot be modified or removed. This repository is ideal for anyone learning Solidity and building decentralised hiring tools, audit‑friendly…

DigitalWill is a blockchain-based smart contract system that lets users create tamper-proof digital wills, deposit cryptocurrency, and automate inheritance distribution after a configurable inactivity period. It provides beneficiary management, a "proof of life" activity confirmation, personalized final messages, transparent event logging, and gas-efficient on-chain execution — all without intermediaries. Repository:…

DecentraRPS is a decentralized Rock Paper Scissors game built on Solidity,allowing two players to compete by stakingERC-20 tokens. The gam ensures transparent,trustless,and automated outcomes without intermediaries. All moves,stakes,and results are securely recorded on-chain.

**this project is build for the beginners learning solidiyty and celo block chain this program shows an output of Hello Blockchains** https://github.com/ankan21042007-roy/contract.-funfi.sol

A decentralized voting application built using Solidity and deployed on the Celo Blockchain (Sepolia Testnet). This project enables secure, transparent, and tamper-proof voting by storing every vote on-chain. The contract allows the owner to add candidates, while users can vote only once, ensuring fairness and trust through blockchain technology.

The VOTECHORI Project is a decentralized smart contract built to demonstrate how blockchain logic can automate and secure transactions without the need for intermediaries. It serves as a great starting point for developers who want to understand how smart contracts work, how they are deployed, and how users can interact with them on-chain.

This project is a** Decentralized Smart Bank** built on the Celo Sepolia Testnet using Solidity. It enables users to securely deposit and withdraw CELO directly on the blockchain without relying on traditional banks or centralized intermediaries. Built with transparency, immutability, and trustlessness in mind, the contract records every transaction on-chain and ensures secure fund management using a reentrancy guard. The system also supports direct ETH/CELO transfers and provides the owner…

ecure Notepad is a decentralized notepad built on the Ethereum blockchain. It allows users to write, edit, share, and manage their notes directly on-chain, ensuring transparency, immutability, and user ownership. ⚠️ Note: Blockchain data is public. For real privacy, you should encrypt notes off-chain or store them on IPFS and save only the CID in the contract.

DeckChain is a decentralized on-chain deck management system that allows users to create, shuffle, and draw cards securely using blockchain technology. It’s perfect for card-based games, NFT collectibles, or any decentralized app where fairness and transparency matter. Every deck and card is stored on-chain, ensuring that game logic is verifiable, immutable, and tamper-proof. This project is designed for developers learning Solidity and decentralized game logic. github link:…