Hono vs tRPC vs oRPC — API Layer Comparison for SaaS

The API layer is a critical architectural decision for any SaaS application. In the TypeScript ecosystem, three solutions stand out: Hono, tRPC, and oRPC. Each takes a different approach to building APIs. Let's compare them.

Quick Comparison

Feature	Hono	tRPC	oRPC
Type	HTTP framework	RPC framework	RPC framework
OpenAPI	Via middleware	Via plugin	Built-in
REST-compatible	Yes	No	Yes
Type safety	Via Zod/validation	Full end-to-end	Full end-to-end
Bundle size	~14KB	~30KB	~5KB
Edge support	Excellent	Good	Good
Standalone deployment	Yes	No (needs host framework)	Yes
Learning curve	Low (REST-familiar)	Low	Low
External API consumers	Yes	Difficult	Yes

Hono

Hono is an ultralight HTTP framework optimized for edge environments. It follows familiar REST patterns while adding modern TypeScript features.

Strengths

• Universal deployment — runs on Cloudflare Workers, Vercel Edge, Deno, Bun, Node.js
• Familiar REST patterns — easy to learn if you know Express
• Standalone capable — deploy as a separate service from your frontend
• OpenAPI support — generate API documentation
• Middleware ecosystem — CORS, auth, rate limiting, and more
• Tiny bundle — perfect for serverless and edge

When to Choose Hono

• You need a standalone API that can be deployed independently
• Your API serves external consumers (not just your own frontend)
• You want REST endpoints with OpenAPI documentation
• You're deploying to edge environments
• You need maximum deployment flexibility

tRPC

tRPC pioneered end-to-end type safety for TypeScript full-stack applications. It removes the API boundary between client and server.

Strengths

• End-to-end type safety — client types match server automatically
• No code generation — types flow naturally
• Established ecosystem — large community, many examples
• React Query integration — excellent data fetching hooks

Limitations

• Not REST — can't easily serve external API consumers
• No OpenAPI — harder to document for external use
• Coupled to frontend — designed for same-team client/server
• Can't deploy standalone — needs a host framework

When to Choose tRPC

• Your API is only consumed by your own frontend
• You don't need REST endpoints or OpenAPI
• You want the simplest type-safe setup

oRPC

oRPC is a newer RPC framework that combines tRPC's type safety with REST/OpenAPI compatibility.

Strengths

• End-to-end type safety — like tRPC
• OpenAPI generation — like Hono, but automatic
• REST-compatible — can serve both RPC and REST clients
• Tiny bundle — smallest of the three
• Contract-first option — define your API contract, then implement

Limitations

• Newer project — smaller community and fewer examples
• Less middleware — growing ecosystem

When to Choose oRPC

• You want tRPC-like DX with REST/OpenAPI compatibility
• You need to serve both internal and external API consumers
• You value smallest bundle size

Our Recommendation

At supastarter, we support both Hono and oRPC, giving you the flexibility to choose based on your needs:

• Choose Hono if you want a standalone, independently deployable API with REST patterns
• Choose oRPC if you want end-to-end type safety with OpenAPI compatibility

Both integrate seamlessly with Next.js and Nuxt through supastarter.

Summary

Your Need	Best Choice
Standalone REST API	Hono
Internal-only type-safe API	tRPC
Type-safe + REST/OpenAPI	oRPC
Edge-first deployment	Hono
Smallest bundle	oRPC
Largest community	tRPC