ts-proto

At a glance

• Editor score
  7.1 / 10
• Pricing
  Open source
• Best for
  TypeScript clients from Protobuf schemas
• Paid from
  Free
• Project scaffolding
  No
• Facts checked
  20 Sep 2026

• Where it wins

  • Generates TypeScript types, serializers, JSON helpers, and service clients
  • Supports Twirp, grpc-web, grpc-js, and NestJS client implementations
  • Fits protoc, Buf, npm, and Gradle-based generation workflows

• Where it doesn't

  • Focused on TypeScript rather than multiple target languages
  • Requires Protocol Buffer schemas and a protoc-based workflow
  • Its scope centers on schema-driven generation, not project scaffolding

Our verdict on ts-proto

ts-proto is an open-source protoc plugin for teams building TypeScript applications and services around Protocol Buffer schemas. It transforms .proto files into strongly typed TypeScript source files, including message interfaces, encode and decode helpers, fromJSON and toJSON helpers, and partial construction support. It also generates service types and client implementations, making it a focused choice for TypeScript developers who want generated code to stay aligned with their schemas.

Its ecosystem fit is a central strength. Developers can install the plugin through npm and invoke it from protoc, Buf, or build tooling such as Gradle. Generated clients support Twirp, grpc-web, grpc-js, and NestJS, while configurable protoc generation options provide control over how code is produced. Automatic batching is available for supported Twirp clients. This makes ts-proto suitable for projects that already organize their APIs around Protocol Buffers and need generated types plus client-side service code across several RPC environments.

The product is deliberately narrow rather than a general project generator. Its documented capabilities focus on converting schemas into TypeScript, with no project scaffolding described. Teams working in TypeScript and Protobuf should find that focus aligned with their workflow, especially when they need serialization, JSON conversion, and service implementations from the same schema. Teams seeking generators for other target languages, broader application scaffolding, or a tool outside a protoc-based process should choose a different category fit. ts-proto is distributed as open-source software rather than as a tiered commercial product.

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ts-proto pricing

ts-proto fact sheet

ts-proto integrations

ts-proto lists 6 integrations on its own site.

• Twirp
• grpc-web
• grpc-js
• NestJS
• Buf
• Gradle

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update