Customjs — No-Code & Automation

What is Customjs?

Customjs is a developer-friendly API platform that lets you run JavaScript code, generate pixel-perfect PDFs, capture web page screenshots, host static HTML pages, and build forms without managing your own backend. It integrates seamlessly with no-code tools like Make.com and n8n, and exposes an MCP server to connect AI agents to your custom logic.

What problem does it solve?

Instead of juggling multiple services for PDF generation, form backend, web scraping, and script execution, Customjs unifies them into one API. This simplifies workflows for automation enthusiasts, AI developers, and no-code builders who need to add complex logic or document generation without writing a full server.

Who is it for?

Customjs is ideal for makers, automation specialists, and AI project developers who want to extend their favorite tools like Make.com and n8n. It is not for those seeking a full website builder or a low-level cloud function platform—it focuses on lightweight, task-oriented execution.

Real use cases

Generate invoice PDFs from Airtable data, create branded PDF quotes from Pipedrive deals, automate email creation with ChatGPT, export Airtable records as JSON, and build headless forms with success pages—all without writing a server.

• JavaScript Execution — Run Node.js scripts with full NPM support, ideal for complex logic in your workflows.
• PDF Generation — Convert HTML templates to pixel-perfect PDFs, with watermark-free output on paid plans.
• Screenshot Capture — Take snapshots of any web page in seconds for monitoring or archiving.
• Static Hosting — Deploy executable, AI-generated HTML pages with unlimited bandwidth (fair use).
• Form Builder & Headless Forms — Create forms with a drag-and-drop editor and handle submissions via a robust backend.
• Mail Hook — Forward incoming emails to any webhook, enabling email-triggered automations.
• MCP Server — Expose all Customjs tools to your AI agents for seamless integration.

Customjs pricing: from $9/mo.

For comparison: the median starting price in No-Code & Automation is $19/month, measured across 187 tools we track. See the full SaaS Pricing Index →

Free

20 requests/day (600/month), includes JS execution and PDF rendering with a small watermark, 3 forms (incl. headless) with 500 form responses/month, 1 mail hook with 10 incoming emails/day, 5 hosted pages with CustomJS logo, 30s request timeout, and email support. No credit card required.

Pro — $29/month

100 requests/day, no watermark or white-label for PDFs and pages, 60s timeout, 9 forms (incl. headless) with 2,000 form responses/month, 3 mail hooks with 50 incoming emails/day, 15 hosted pages, 1 custom domain, and email support.

Ultra — $99/month

500 requests/day, no watermark, 60s timeout, 29 forms (incl. headless) with 6,000 form responses/month, 19 mail hooks with 250 incoming emails/day, 40 hosted pages, 1 custom domain, and email support.

Mega — $?/month

5,000 requests/day, no watermark, 60s timeout, 59 forms (incl. headless) with 30,000 form responses/month, 49 mail hooks with 1,000 incoming emails/day, 100 hosted pages, 1 custom domain, and email support. (Price not listed on the page.)

Start with the free plan—600 requests per month, no credit card required.

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