Source: https://seerepo.com/r/elysiajs/elysia/built
Markdown source: https://seerepo.com/r/elysiajs/elysia/built.md
Description: elysia is a TypeScript repo. It makes its content with file-type and validates its data with @sinclair/typebox, Zod, arktype, and valibot.

# What is elysia built with?

elysia is a TypeScript repo. It makes its content with file-type and validates its data with @sinclair/typebox, Zod, arktype, and valibot. It has 83,119 written lines, with 159 test files.

Read on November 6, 2026, at commit 1cf5ce1.

Repository: https://github.com/elysiajs/elysia

## Support

### Content

- **[file-type](https://seerepo.com/uses/file-type)**: 1 file

### Validation

- **@sinclair/typebox**: 14 files
- **[Zod](https://seerepo.com/uses/zod)**: 14 files
- **arktype**: 2 files
- **[valibot](https://seerepo.com/uses/valibot)**: 2 files

### Tools

- **expect-type**: 8 files
- **openapi-types**: 1 file
- **tsup**: 1 file

### Other

- **cookie**: 1 file

## Other repos with a similar stack

- [drizzle-team/drizzle-orm](https://seerepo.com/r/drizzle-team/drizzle-orm/built): @sinclair/typebox, Zod, arktype, valibot · [Compare](https://seerepo.com/compare/drizzle-team/drizzle-orm/vs/elysiajs/elysia)
- [moeru-ai/airi](https://seerepo.com/r/moeru-ai/airi/built): file-type, Zod, valibot · [Compare](https://seerepo.com/compare/elysiajs/elysia/vs/moeru-ai/airi)
- [CopilotKit/CopilotKit](https://seerepo.com/r/CopilotKit/CopilotKit/built): Zod, arktype, valibot · [Compare](https://seerepo.com/compare/CopilotKit/CopilotKit/vs/elysiajs/elysia)
- [n8n-io/n8n](https://seerepo.com/r/n8n-io/n8n/built): file-type, Zod
- [storybookjs/storybook](https://seerepo.com/r/storybookjs/storybook/built): Zod, valibot
- [ruvnet/ruflo](https://seerepo.com/r/ruvnet/ruflo/built): file-type, Zod

## Frequently asked questions

### What language is elysia written in?

elysia is written in TypeScript, with 83,119 written lines.

### Does elysia have tests?

Yes. elysia has 159 test files.

### Which repos have a stack like elysia's?

The ones that share most of its stack: drizzle-team/drizzle-orm, moeru-ai/airi, and CopilotKit/CopilotKit.

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.