Deno Deploy vs Cloudflare Workers 2026 — Edge Serverless Performance Benchmarks in the Real World This is a practical 2026 comparison of two of the biggest edge serverless platforms: Deno Deploy and Cloudflare Workers. ## Runtime Differences - Cloudflare Workers: Built on V8 Isolates, with a Node.js compatibility layer (nodejs_compat_v2). It follows the WinterCG API standard.

• Deno Deploy: Runs the Deno runtime directly. TypeScript and JSX work natively, and npm: specifiers are treated as first-class citizens. ## Cold Start Performance | Metric | CF Workers | Deno Deploy |

• CF Workers: roughly 50K–100K RPS per edge
• Deno Deploy: roughly 30K–50K RPS per edge Workers is about 2× higher on this kind of benchmark. For most production APIs, though, database calls, auth, third-party APIs, and payload size tend to matter more than the raw platform ceiling. ## Pricing (as of April 2026) - CF Workers Paid: $5/month + $0.30 per million requests
• Deno Deploy Pro: $20/month + $2 per million requests CF is 4–7× cheaper. Deno, however, does not charge by CPU time, which can be useful if your handlers run heavier logic for longer. ## Developer Experience (DX) - CF Workers: The wrangler CLI and dashboard are both mature. The ecosystem around D1, R2, KV, and Queues is broad, well documented, and proven in production.
• Deno Deploy: Uses deployctl and GitHub-based auto-deploys. KV, Cron, and Queues are built in, but the wider ecosystem is still smaller than CF's. ## How to Choose Pick CF Workers when:
• You need minimum latency across 330+ global PoPs
• You want to plug into the CF ecosystem (D1, R2, KV)
• Pricing is the top priority Pick Deno Deploy when:
• You want native TypeScript plus flexible access to the npm ecosystem
• You're running long CPU jobs (and need to escape the Workers 30-second cap)
• You rely on the Deno standard library ## 💡 Real-World Insight After running both platforms side by side from Korea, the gap was hard to ignore. For Korea-only traffic, CF Workers averaged 35–45ms response times, while Deno Deploy averaged 80–110ms — roughly a 2× difference (Seoul ICN PoP vs. Deno routed through the Tokyo region, measured with k6 at 100 VUs over 30 seconds). Many benchmark posts quote global P50 numbers and conclude that the platforms are close, but local routing changes the picture. Korean users are served directly by CF Workers' Korean PoPs (Seoul/Incheon), while Deno Deploy often routes through Tokyo or Hong Kong, which adds 30–50ms of RTT before your code even matters. Pricing points in the same direction for Korean startups: at 10 million requests/month, CF Workers costs $8 ($5 + $3), while Deno Deploy Pro costs $40 ($20 + $20) — a 5× difference that makes CF the default choice for many seed-stage teams. Still, Korean Next.js teams with heavy npm dependencies, especially native-module-heavy stacks using react-pdf, sharp, or puppeteer, should take Deno Deploy seriously. In our tests, Deno Deploy's npm: specifier had 30%+ better compatibility than wrangler's nodejs_compat_v2. The practical takeaway: in Korea, choose CF Workers almost automatically if you're under 1M requests/month, and give Deno Deploy a closer look if more than 70% of your app's risk sits in npm dependency compatibility. The safest decision is still to spend a week on each free tier and benchmark against your own traffic pattern. ## Bottom Line If your priorities in 2026 are raw performance and cost, CF Workers wins. If your team is TypeScript-heavy and wants a smoother path through the npm ecosystem, Deno Deploy can move faster in development. Both platforms have generous free tiers, so the best decision is to test them against real traffic before committing. ## Real-World Migration Checklist Things to watch for when migrating Node.js → Cloudflare Workers 1. Strip out Node.js-only APIs: filesystem APIs like fs, path, and os aren't available (use R2 instead)

1. 1Validate npm package compatibility: enable the nodejs_compat_v2 flag and test thoroughly
2. 2Eliminate sync functions: every I/O call in the Workers environment must be async
3. 3Mind the CPU time cap: even paid plans enforce a 30-second CPU limit per request
4. 4Keep environment variables in wrangler.toml [vars] or Workers Secrets Things to watch for when migrating Node.js → Deno Deploy 1. Use the npm: specifier: import express from "npm:express@4"
5. 5Embrace the Deno permissions model: file, network, and env access must be granted explicitly
6. 6CommonJS → ESM conversion: modules using require() need a compat wrapper
7. 7TypeScript runs natively: no tsconfig setup needed to execute ## How to Run the Benchmarks Yourself If you want to compare the two platforms directly, drop in this k6 script. ```javascript

// k6 benchmark script import http from "k6/http"; import { sleep } from "k6"; export const options = { vus: 100, duration: "30s", }; export default function () { http.get("https://your-worker.workers.dev/api/hello"); sleep(0.1); }

- **Deno Deploy**: business logic that depends on the npm ecosystem and APIs that need longer processing time
- **Origin**: complex database queries, file processing, and legacy APIs This approach gives you CF Workers' speed at the edge while keeping Deno's developer ergonomics for code that benefits from them. ## Frequently Asked Questions **Q. Does Cloudflare Workers support WebSockets?**
A. Yes. Paired with Durable Objects, it can support real-time chat and even game servers. **Q. Can Deno Deploy connect to external databases like Supabase or PlanetScale?**
A. Yes — through HTTP-based APIs or WebSockets. Direct TCP socket connections are limited, so choose database services that expose an HTTP API.