ttsc

ttsc [options] [projectoptions_]ttsc fix | format

ttsc is a TypeScript toolchain built on typescript-go. It is a drop-in replacement for tsc: it reads the same tsconfig.json, accepts the same compiler flags, and emits the same JavaScript, then runs compiler-powered plugins during the type-check pass.Plugins can add transforms, extra checks, or type-driven code generation (for example typia validators). With @ttsc/lint installed, lint and format rules run inside the same compile so violations appear as compiler diagnostics. Subcommands fix and format apply autofixes and formatting in place.Install as a dev dependency (npm install -D ttsc typescript) and invoke via npx ttsc or a package script. Pair with ttsx to execute TypeScript after a full project type-check.

Most tsc flags are supported, including:--noEmit

Type-check only; do not write output files

Watch input files and rebuild on changes

Compile the project given by the configuration file

Stylize errors and messages using color and context (default as in tsc)

Apply lint autofixes and format edits

Apply format edits only; never change program behavior

Requires typescript alongside ttsc. Plugin and lint behavior depends on installed @ttsc/\* packages and project config (for example lint.config.ts). Not every third-party tsc wrapper flag may map one-to-one; prefer documented ttsc setup guides for bundler and Metro integrations.

Created by Jeongho Nam (samchon) as a modern successor to transformer toolchains such as ttypescript and ts-patch, targeting the typescript-go compiler and integrating lint, format, and MCP code-graph tooling.

ttsx(1), tsc(1), tsx(1), ts-node(1)

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