File.io vs Google Drive

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.

Google Drive's API lets applications create, read, update, and share files and folders stored in a user's Drive, with fine-grained OAuth scopes for personal or Workspace accounts. A live GET against the real gateway, www.googleapis.com/drive/v3/files, returned a 403 without a token, reconfirming OAuth 2.0 auth over HTTPS, and a follow-up OPTIONS preflight echoed the request Origin in Access-Control-Allow-Origin, resolving cors from unknown to yes. The url was updated to Google's current Workspace documentation hub, which the old /drive/ path now permanently redirects to. Personal accounts get 15GB free, with paid Google One and Workspace plans raising the storage cap.