# TypeScript Viewer

Free online TypeScript viewer. Open .ts and .tsx files directly in your browser without uploading them.

> Canonical page: https://elysiatools.com/en/viewers/ts

- **Category:** Text Files

- **Supported formats:** .ts, .tsx

## Overview

This TypeScript viewer renders source files locally in your browser. TypeScript adds static types to JavaScript, powering large apps, libraries, and React components (.tsx). Pick a sample or choose your own .ts file to inspect types, interfaces, and syntax with highlighting.

## When to use

- You have a TypeScript file and want to read it without an editor.
- You need to inspect types, interfaces, or a TSX component quickly.
- You are on a device without a code editor and need to browse a .ts file.

## How it works

- Select a built-in sample or choose your own .ts or .tsx file.
- The viewer renders the source with syntax highlighting in the browser, with no upload.
- Inspect the code, then switch samples or load another file any time.

## Use cases

- Reviewing typed modules, generics, and utility types.
- Inspecting React/TSX component sources.
- Browsing TypeScript code on any device.

## Samples

- **Mixed Style Naming Mistakes**: TypeScript code showing common naming mistakes including mixed camelCase and snake_case, inconsistent capitalization, and meaningless abbreviations
- **Interfaces & Arrays**: A TypeScript example with an interface, typed arrays, and filtering
- **Generics & Utility Types**: TypeScript generics with a generic ApiResponse type and helper
- **React Component (.tsx)**: A typed React to-do list component written in TSX

## Frequently asked questions

### Is this TypeScript viewer free?

Yes. It runs in your browser for free and needs no registration or installation.

### Are my TypeScript files uploaded?

No. Files opened from your device stay on your device. Only public sample files come from the server.

### Does it support .tsx?

Yes. The viewer reads both .ts and .tsx extensions equally.

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