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Optimizing Next.js 14/15 on Cloudflare Workers: OpenNext Memory Limits & Sub-50ms TTFB

Fix Cloudflare Worker 128MB memory limits with Next.js & OpenNext. Learn bundle splitting, slug parser optimizations, KV asset binding, and edge caching strategies.

Sachin Sharma
Sachin SharmaCreator
Jul 21, 2026
3 min read
Optimizing Next.js 14/15 on Cloudflare Workers: OpenNext Memory Limits & Sub-50ms TTFB
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Fix Cloudflare Worker 128MB memory limits with Next.js & OpenNext. Learn bundle splitting, slug parser optimizations, KV asset binding, and edge caching strategies.

Cloudflare WorkersNext.js 15OpenNextEdge ComputingPerformance
Sachin Sharma

Sachin Sharma

Software Developer & Mobile Engineer

Building digital experiences at the intersection of design and code. Sharing weekly insights on engineering, productivity, and the future of tech.

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