Customjs
Code-first automation runtime for custom JavaScript logic, HTML-to-PDF, HTML-to-PNG, PDF merging, and Puppeteer scripts.
Built for developers that run arbitrary JavaScript jobs in the cloud to generate PDFs, render screenshots, merge documents, and automate headless browser tasks.
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Sign in to connect an account and start using Customjs in your apps.
Example Use Cases
These are example ways Snow can use Customjs when building apps with you. This list is meant to show examples, not document every possible capability. Connecting an account does not make Snow run these automatically on its own.
Authenticate and validate a CustomJS API key. Returns workspace details, request limits, and decoded JWT token information including user email. Use this to verify an API key is valid before making other CustomJS API calls.
Convert HTML content to a PDF document. Use this tool to generate PDF files from raw HTML markup. Supports: - Complete HTML documents or fragments - Inline CSS styling (colors, fonts, tables, borders, backgrounds) - Unicode characters and special symbols - Multi-page documents Returns raw PDF bytes suitable for file storage or download.
Tool to convert HTML string to PNG image. Use when you need a PNG from HTML after preparing your markup.
Merge multiple PDF files from URLs into a single PDF document. Use this tool when you need to combine two or more PDF documents into one. The PDFs are merged in the order provided. All input URLs must be publicly accessible. Returns a downloadable merged PDF file.
Execute a Puppeteer script in a headless browser and capture a screenshot. Use this tool for browser automation tasks such as navigating to URLs, interacting with page elements, extracting data, or capturing visual snapshots of web pages. The script runs in a sandboxed Puppeteer environment with access to a 'page' object.