File.io vs The Null Pointer

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.

The Null Pointer (0x0.st) is a minimalist, no-account temporary file host and URL shortener: a plain POST with a file returns a bare URL as the entire response body, with retention scaled by file size. A live OPTIONS preflight with an Origin header against the real host, 0x0.st, returned a 200 with no Access-Control-Allow-Origin header, resolving cors from unknown to no; no auth is required for uploads, and HTTPS was reconfirmed. It's a single free, ad-free service with no paid tier, retaining files from 30 days up to 1 year depending on size (max 512MiB).