uploadthing

Handle file uploads in TypeScript apps with type-safe APIs and validation.

4|Updated Jan 15, 2026
One-click install
npx skills add https://github.com/mgd34msu/goodvibes-gemini --skill uploadthing
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: uploadthing
Source: https://github.com/mgd34msu/goodvibes-gemini/tree/main/skills/uploadthing
Command: npx skills add https://github.com/mgd34msu/goodvibes-gemini --skill uploadthing

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill simplifies and secures the process of handling file uploads in TypeScript applications, particularly for Next.js and React projects, by providing a type-safe API and robust validation.

Core Features & Use Cases

  • Type-Safe Uploads: Ensures that file types, sizes, and counts are validated on both the client and server.
  • Pre-built Components: Offers ready-to-use UploadButton and UploadDropzone components for quick integration.
  • Server-Side Management: Provides UTApi for managing files (uploading, deleting, listing) from the backend.
  • Use Case: Integrate a secure and user-friendly image uploader into a social media application where users can upload profile pictures or post images with defined size and type restrictions.

Quick Start

Install the necessary packages by running npm install uploadthing @uploadthing/react in your project.

Frequently Asked Questions about uploadthing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I handle file uploads in Next.js with type-safe validation?

Type-safe file uploads in Next.js are handled by defining file routes with custom middleware that validate file types, sizes, and counts on both the client and server. This ensures invalid files are rejected before the upload completes.

What is the best way to add a file upload component to a React application?

Adding a file upload component to a React application is best done using pre-built UI elements like UploadButton and UploadDropzone. These components provide immediate integration with type-safe APIs and CDN delivery out of the box.

Does UploadThing support server-side file management in TypeScript apps?

Server-side file management in TypeScript apps is supported through the UTApi backend interface. UTApi enables backend processes to upload, delete, and list files directly without requiring client-side interaction.

Can I process files on the server automatically after a file upload finishes?

Processing files on the server after an upload finishes is possible by defining onUploadComplete callbacks within your file routes. These callbacks execute server-side logic immediately when a valid upload is completed.

Do I need to configure a separate CDN for delivering uploaded files in a React app?

Configuring a separate CDN for uploaded files in a React app is unnecessary because the service includes CDN delivery natively. Uploaded files are automatically distributed through the integrated CDN infrastructure.

How do I restrict image dimensions or file types for profile picture uploads?

Restricting image dimensions or file types for profile picture uploads is achieved by defining custom middleware within your file routes. This middleware inspects incoming files and enforces specific size and type restrictions before acceptance.