Puppeteer Alternative
Renderfy vs Puppeteer
Puppeteer works. But a 300 MB Chromium binary that requires 20 Linux packages and breaks on every serverless deploy is a lot of ops overhead for generating a PDF. Here's the full comparison.
| Feature | Puppeteer | Renderfy |
|---|---|---|
| Binary size | ~300 MB (Chromium) | 0 MB (API call) |
| Linux system deps | ~20 packages required | None |
| Serverless friendly | Difficult / workarounds needed | Yes — plain HTTP |
| Cold start impact | High (browser launch ~1–3s) | Negligible |
| CSS support | Full | Full (Chromium server-side) |
| Concurrent renders | Requires browser pool mgmt | Handled automatically |
| Maintenance burden | You patch Chrome, manage deps | None |
| Output formats | PNG, JPEG, WebP, PDF | PNG, JPEG, WebP, PDF |
| Input types | HTML / URL | HTML, Tailwind, Markdown, code, charts, diagrams, math |
| Custom brand fonts | Manual @font-face / install on host | Yes — pass Google Font family names per request |
| Saved templates | Build your own system | Built-in — POST { template, data } |
| Batch rendering | Build your own loop | Built-in — up to 20 per request |
| Idempotency / safe retries | Build your own | Built-in — Idempotency-Key header, encrypted replay |
| Data residency | Wherever you host | EU — server in Germany, DB in Ireland |
| Pricing | Free (you pay for infra) | Credit-based from $9/mo |
When Puppeteer is still the right choice
Puppeteer is the right tool when you need to interact with a live page — clicking buttons, filling forms, scraping dynamic content, or testing UI flows. It's also a good fit if you're already running a persistent Node.js server with spare memory and you want to keep everything in-process with a reused warm browser instance.
When Renderfy makes more sense
- → You're deploying to a serverless platform (Vercel, AWS Lambda, Cloudflare Workers) where shipping a 300 MB binary isn't practical.
- → You want to generate PDFs or images from static HTML/Tailwind templates rather than scraping a live URL.
- → You need input types beyond HTML — Markdown, code snippets, charts, diagrams, LaTeX math.
- → You don't want to manage Chrome binary updates, Linux system dependencies, or browser pool sizing.
Side-by-side: generating a PDF
Puppeteer
import puppeteer from 'puppeteer';
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.setContent(html);
const pdf = await page.pdf({
format: 'A4',
printBackground: true,
});
await browser.close();
// 300 MB binary, ~20 linux deps,
// breaks in serverlessRenderfy
const res = await fetch(
'https://renderfy.io/api/v1/render',
{
method: 'POST',
headers: {
'Authorization': 'Bearer KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
type: 'tailwind',
content: html,
options: { format: 'pdf',
dimensions: 'a4' },
}),
}
);
const pdf = await res.arrayBuffer();100 free credits — no card needed
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