This repo is a working rewrite of this abandoned library. It provides a very simple way to convert an image to a base64 string.

If you encounter OOM errors on old android devices, make sure you optimize the image's size before you convert it. Indeed working with big images on Android might cause very high memory usage.

npm install react-native-image-base64 --save or yarn add react-native-image-base64

$ react-native link react-native-image-base64

import ImgToBase64 from 'react-native-image-base64';

ImgToBase64.getBase64String('file://youfileurl')
  .then(base64String => doSomethingWith(base64String))
  .catch(err => doSomethingWith(err));