Developer

Let agents handle your document and browser tasks

QX turns HTML into polished PDFs, captures webpages, and runs browser scripts on your behalf—so your team stops gluing together scripts and starts shipping work.

@QX Can you send last week's invoices to clients as PDFs?

I found 14 invoices in Stripe from last week. I'll render each one from your HTML template, convert to PDF via CustomJS, and email them out. Want me to send now?

Customjs

Stripe

Gmail

Stop stitching together scripts to make PDFs, grab screenshots, and scrape pages. Hand it to an agent.

Documents

PDFs generated on demand

Turn HTML templates, reports or invoices into pixel-perfect PDFs the moment they're needed—rendered, merged and filed automatically, with no manual export or formatting work.

Screenshots

Webpage snapshots at scale

Capture clean PNGs of any URL—competitor pages, landing pages, dashboards—on a schedule or trigger, so visual records and proofs are always ready when you need them.

Browser tasks

Headless browsing without the code

Run Puppeteer scripts to log in, click through and extract whatever's on screen—delegating the fiddly browser automation an agent can drive end-to-end.

Customjs

Real workflows, built for your team

Build complex workflows in minutes that chain CustomJS together with the rest of your stack. Trigger them on specific events, on schedule, or on demand.

Finance: Render and deliver invoices automatically

New invoice issued

Triggered in Stripe

Populate HTML template

Agent step

Convert HTML to PDF

in Customjs

File PDF in client folder

in Google Drive

Client email on file

Email invoice to client

Send via Gmail

QX agents can render PDFs, capture screenshots, merge documents and run browser scripts—and more

CREATEConvert HTML to PDF

CREATEConvert HTML to PNG

CREATECapture webpage screenshot

CREATEMerge multiple PDFs into one

CREATERun a Puppeteer script

QUERYAuthenticate your API key

About Customjs

CustomJS is a code-first automation platform that lets teams plug custom JavaScript logic into any system. It's used to generate PDFs, render screenshots, run headless browser scripts and extend applications with bespoke functions—making it a flexible building block for document and web automation workflows.

About QX Labs

QX is an AI agent platform that helps you build, run and scale AI across your team in a few clicks. Create agents that connect to your data and 1,000+ apps, building institutional memory that gets sharper every run. Then delegate tasks to them from where you already work—Slack, Teams, WhatsApp or email.

See CustomJS working inside your stack

Want an AI co-worker that generates documents and runs browser tasks for you? Book a demo call to discuss your use cases, or get started for free.

Book a demo