Hashchain is a web client that saves file hashes on the Ethereum blockchain. You can insert files with the web interface and you can also test whether you've already uploaded a file into the blockchain.
git clone https://github.com/mvanaltvorst/hashchain.git
cd hashchain
npm install
truffle compile
You should change truffle.js if you want to deploy this to the main network. In this guide, we will continue using a local ganache blockchain. You can start a local ganache blockchain by opening a second terminal and running ganache-cli.
truffle migrate --network=ganache
webpack --mode=production
The resulting files will be located in the build/ directory.