Deno
Modern runtime for JavaScript and TypeScript
The Lens
By Erik Loyd, SaaS CEO and former COO/CFO of an AWS Premier Partner.
Updated Jun 2026
Deno is a modern JavaScript and TypeScript runtime from the original creator of Node.js. Native TypeScript support (no build step), built-in security permissions (scripts can't access your filesystem unless you say so), and a standard library that actually works.
MIT, established. Deno Deploy is their edge hosting platform. Think Vercel/Cloudflare Workers but tightly integrated with the runtime.
The compatibility story has gotten much better. Deno now runs most npm packages, so the 'ecosystem gap' argument is mostly dead. You can migrate incrementally.
The catch: despite being technically superior in many ways, Node.js has overwhelming market share. Your team knows Node. Your CI knows Node. Your hosting knows Node. Switching runtimes is a big decision, and 'better defaults' doesn't always win against 'everyone uses it.' Deno Deploy's free tier is limited: 100K requests/day, 1ms CPU time per request.
Free vs Self-Hosted vs Paid
free self hosted paid cloudFree: The Deno runtime is MIT and completely free. Install it, run TypeScript, use the standard library, import npm packages. No limits.
Deno Deploy (cloud):
- Free: 100K requests/day, 1ms CPU/request, 1GB outbound/month
- Pro: $20/mo, 5M requests/day, 50ms CPU/request, 100GB outbound
- Enterprise: custom pricing
The runtime itself will always be free. Deno Deploy competes with Vercel, Cloudflare Workers, and Fly.io. The free tier is decent for side projects. $20/mo Pro is competitive for small production apps.
Self-hosting: just install Deno on any server. No runtime cost, no license, no phone-home.
Runtime is free forever. Deploy starts free, $20/mo when you need production capacity.
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