standalone-html
include all external css/js and encode image in base64 into a single html file.
chromium-base64
Base64 Encoder/Decoder ⚡⚡⚡ 9Kb FASTEST NPM JAVASCRIPT IMPLEMENTATION 2023!
grunt-assets-inline
A grunt task which takes a html file, finds all the css, js links and images, and outputs a version with all the css, js and images (Base64) written inline.
ckeditor-image-to-base
ckeditor-image-to-base64 plugin for CKEditor 4 - Adds images from local as base64 string into the source without server side processing.