UploadThing

UploadThing is a modern file upload solution designed specifically for the TypeScript ecosystem, offering end-to-end type safety from client to server.

Key Features

• Type-Safe API: Full TypeScript support with inferred types
• Next.js Integration: First-class support for App Router and Pages Router
• File Validation: Define allowed file types and sizes in code
• Presigned URLs: Secure direct-to-storage uploads
• React Components: Pre-built upload button and dropzone components

Core Capabilities

UploadThing's file router pattern lets you define upload endpoints with validation rules that are enforced both client and server-side. The SDK provides React hooks and components that handle progress tracking, error states, and success callbacks automatically.

Built by Theo and the Ping Labs team, UploadThing is the go-to choice for TypeScript developers who want file uploads that feel native to their stack—no wrestling with S3 configurations or presigned URL complexity.