Security and privacy
Check leaks and files, share secrets that self-destruct, delete old accounts. 5 resources; API, key, license and embedding quoted from each site's own pages, checked Oct 23, 2026.
Have I Been Pwned
It shows how many real-world leaks a single address has been caught in, and the password check works without ever sending the password itself.
LiveAPIDownloadCommercial: conditions
VirusTotal
You can see in seconds how many security vendors disagree about the same file, and community comments show how a threat was spotted.
LiveAPINon-commercial
Privnote
A simple way to pass a secret once without it sitting in chat or email history.
License unclear
file.io
It is built around files that do not linger: links expire on their own instead of piling up in cloud storage.
ChangedLiveLicense unclear
AccountKiller
It shows at a glance which services let you leave cleanly and which ones make it nearly impossible.
Non-commercial
Side by side
| Resource | API | Key | Data download | Commercial use | Embed |
|---|---|---|---|---|---|
| Have I Been Pwned A breach lookup service: enter an email address or domain to see which known data breaches exposed it, plus a separate Pwned Passwords service that tells you if a password has appeared in leaks. |
Official API · Free tier | Yes | Yes (text) | Commercial use with conditions | Embedding unclear |
| VirusTotal An online scanner that checks a file, URL, domain or IP address against dozens of antivirus engines and blocklists and shows a combined report. |
Official API · Free tier | Yes | — | Non-commercial only | Embedding unclear |
| Privnote A web tool for sending a text note as a one-time link that is meant to disappear after it is read. |
API unclear | — | — | Commercial use unclear | Embedding unclear |
| file.io A no-account file sharing page: upload files or a folder and get a share link that expires. |
API unclear | — | — | Commercial use unclear | Embedding unclear |
| AccountKiller A directory of direct links and step-by-step instructions for deleting your account on many websites, with lists of sites that make deletion easy or hard. |
API unclear | — | — | Non-commercial only | No embedding |