HTML comes first.
Pages arrive ready to read. Only components marked as islands ship interactive JavaScript.
Pages & islandsBlink. It’s served.
The React framework for Bun that gets out of the way.
HTML first. Tiny islands. Less work per request.
A little speed, just for fun.
Fast is a measurable thing.
Read the benchmarkOPTZ
26,366
Next.js 16
438
Same app. One CPU core. Production builds. Median of 3 runs.
Measured October 27, 2026 on this workload; results vary by hardware. Method and tradeoffs
Do the work
before the request.
Render, compress, and hash your static pages at build time. When a request arrives, OPTZ looks up the prepared response in memory.
Inside the frameworkAt build time
React pages
Render · compress · hash
On request
Prepared once. Ready when it matters.GET /Memory lookup200 OK
Small runtime. Plenty of room.
React, end to end.
Typed routes and APIs, Server Actions, streaming, and incremental static regeneration.
Framework referenceYour server. Your call.
Deploy as a Bun server, a single executable, or an edge worker. Turn unused features off.
Deploy OPTZChecking server status
Timed from your browser
Less waiting.
More building.
This site runs on OPTZ. Yours can too.