This is a tool to fetch and convert Slack canvases to offline HTML files. The HTML files have self-contained text, formatting, emojis, and images and no connection to any Slack services, with the only network-dependent resource being optional fonts (currently Lato and Liberation Mono) to ensure consistent rendering.

• Write a .env file according to the .env.example template
• Run node main.js or use another JavaScript runtime environment
• Visit http://localhost:3000 (or the port specified in .env) and paste a Slack canvas File ID or URL
• Save the generated HTML file