Dev tools · alternatives · 2026
24 alternatives to Have I Been Known?
Check if a bitcoin address is likely known to surveillance.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Have I Been Known? launched in 2020; newer entries below may have overtaken it.
- 1
Check if your account has been compromised in a data breach
2014 · haveibeenpwned.com · its alternatives →
- 2
Check if your email address was sold without permission
2018 · its alternatives →
- 3
Support Have I Been Pwned through a donation. Your contribution helps fund breach data research, infrastructure, and ongoing development.
2019 · haveibeenpwned.com · its alternatives →
- 4
See yourself through the eyes of a hacker
2024 · dohackersknow.me · its alternatives →
- 5
Check if your secrets and API keys have leaked on GitHub.
2023 · gitguardian.com · its alternatives →
- 6US
Author here. This site lets you put in a username and get the users with the most similar writing style to that user. It confirmed several users who I suspected were alts and after informally asking around has identified abandoned accounts of people I know from many years ago. I made this site mostly to show how easy this is and how it can erode online privacy. If some guy with a little bit of Python, and $8 to rent a decent dedicated server for a day can make this, imagine what a company with millions of dollars and a couple dozen PhD linguists could do. Here's Paul Graham:…
2022 · stylometry.net · its alternatives →
- 7
- 8
Check whether your public IP has been observed participating in a residential proxy network. A free tool powered by Spur Intelligence.
Sep 2026 · haveibeenproxied.com · its alternatives →
- 9
pCloud Pass▲72Check if your personal information has been exposed
2023 · pass.pcloud.com · its alternatives →
- 10
HackNotice▲79Find out when hackers steal your data or leak your identity
2018 · hacknotice.com · its alternatives →
- 11
Prove that you said things before anyone else
Jun 2026 · yousaidthat.org · its alternatives →
- 12
CryptoNotify▲62Receive transaction notifications of any BTC or ETH address
2019 · cryptonotify.app · its alternatives →
- 13
- 14DM
In light of the recent Ledger database breach (https://cointelegraph.com/news/ledger-users-threaten-legal-action-after-hacker-dumps-personal-data), I wanted to see if my address had been leaked after purchasing a Ledger Nano S for myself. HaveIBeenPwned unfortunately doesn't show if just your email or your email as well as address has been leaked, so I decided to set this up. I wish Ledger would just set this up for their customers, but apparently that is far too difficult for them. So here you all go, I wish you the best :/ https://www.didledgerfuck.me/
2020 · its alternatives →
- 15
Is your phone number present within the Facebook data breach
2021 · haveibeenzuckered.com · its alternatives →
- 16
Check if your email address was compromised
2020 · burnermail.io · its alternatives →
- 17
Bot, reputation and live probe of IP addresses for threats
2023 · wafris.org · its alternatives →
- 18
Token Alerts▲142See which meme coins are popular and flip them for a profit
2021 · app.tokenalerts.co · its alternatives →
- 19
- 20
Check your BTC address to see if it's compromised.
2018 · allprivatekeys.com · its alternatives →
- 21
IPDetective collects data from about 60+ different sources such as official cloud provider endpoints and public VPN/Proxy/Tor/Bot net lists. Then aggregates this data into a fast and easy to use API that can be integrated into applications or scripts easily. IPDetective started as a hobby project for my other hobby projects :) and I decided to wrap a simple website around and offer it as a service. Let me know what your thoughts, if you find value in this service or if you have any feature requests.
2022 · ipdetective.io · its alternatives →
- 22
BrowserScan▲62Check your browser fingerprints and IP address
2023 · browserscan.net · its alternatives →
- 23
Mailsbe▲66Find out if your email has been read or not
2022 · mailsbe.netlify.app · its alternatives →
- 24
Upload images to instantly detect online scams with ScamCheck
2025 · scamchecknow.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →