Box vs File.io

Box is an enterprise content-management platform offering secure file storage, sharing, and collaboration, with a REST API and SDKs for building custom document workflows. A live GET against the real gateway, api.box.com/2.0/users/me, returned a 401 without a token, reconfirming OAuth 2.0 bearer auth over HTTPS, and a follow-up OPTIONS preflight returned Access-Control-Allow-Origin: *, resolving cors from unknown to yes. Personal accounts get 10GB free, while paid Business and Enterprise plans (plus metered Box Platform usage) unlock larger storage and API-driven workflows.

File.io is an anonymous, one-time file-transfer service: uploaded files get a short-lived link that self-destructs after a configurable number of downloads, with a simple REST API returning JSON for uploads and deletions. A live OPTIONS preflight with an Origin header against the real host, www.file.io, returned a 403 with no Access-Control-Allow-Origin header, resolving cors from unknown to no; no API key is required for basic use, and HTTPS was reconfirmed. A free anonymous tier covers casual transfers, while a paid plan raises file-size limits and adds account-based management.