File.io

API

Super simple, anonymous, and secure file sharing API

Overview

The File.io API enables seamless file sharing with minimal setup. Key endpoints include POST /upload (multipart/form-data) for file submissions, returning JSON responses with shareable links, auto-expiry details, and upload status. Ideal use cases: embedding temporary file sharing in apps, enabling anonymous transfers, or adding secure, ephemeral uploads to workflows. No complex authentication is needed for basic usage, making it perfect for quick file exchange needs in web/mobile projects.

Example Integration (JavaScript)

script.js JS


fetch('https://www.file.io')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful API
JSON Responses
No Auth Required (Basic)
Temporary File Links
Anonymous Uploads
Auto-Expiring Files

Frequently Asked Questions

? Is File.io API free to use?

Yes, the File.io API offers a free tier with basic features like 5GB max file size and auto-expiring links. Paid tiers are available for larger files and extended functionality.

? Does it require an API Key?

No API key is needed for basic uploads. Paid plans provide API keys for higher rate limits and advanced capabilities.

? What is the response format?

All API responses are in JSON format, including shareable links, expiry details, and upload status indicators.

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Tool Info

Pricing Freemium

Category Cloud Storage & File Sharing

Platform Public API

Pros

⊕ Easy integration (simple endpoints)
⊕ No account needed for basic use
⊕ Secure encrypted transfers
⊕ Auto-expiry ensures privacy
⊕ Lightweight setup

Cons

⊖ Rate limits on free tier
⊖ File size caps in free plan
⊖ No permanent storage
⊖ Limited advanced features (free tier)