filestamp Timestamp filename. import {filestamp, contentstamp} from 'filestamp'; filestamp('./img/logo.png', (err, result) => { result//{filename: logo_e65c0a.png}}); filestamp.sync('./img/logo.png'); contentstamp('var a=1;', 'log0.png', (err, result) => { result//{filename: logo_e65c0a.png}}); contentstamp.sync('var a=1;', 'log0.png');