Pbkit is a collection of tools related to protobuf.

It is written in TypeScript and uses the Deno API.

However, it can be executed in any JavaScript environment (including Node.js or web browser) because it does not use platform APIs inside the core directory.

What is Protobuf?

Protocol buffers are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data – think XML, but smaller, faster, and simpler.

What features are provided?


  • pb - Protobuf schema compiler like protoc.
    • protoc has native binary dependencies, but pb command is written in pure TypeScript, so it can be used comfortably in Node.js projects, etc., and can even easily be run in a web browser.
  • pollapo - A package manager for the protobuf schema.
    • A GitHub repository of .proto files is treated as a single pollapo package.

Browser Extension

Editor Extension


Who uses pbkit?


  • Riiid - Pbkit was originally created to use protobuf in Riiid.

Open source project


pbkit is dual-licensed under Apache 2.0 and MIT terms.
see LICENSE-APACHE and LICENSE-MIT for details.