White Fin — Offline scam checker

Spot phishing & scams in any message — 100% offline.

Windows

Privacy

Security

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White Fin — Offline Phishing & Scam Checker 🦈 Scams are everywhere — fake bank texts, "your parcel is on hold", "you've won", "verify your account now". They're designed to make you panic and act before you think. White Fin gives you a calm second opinion, instantly, and completely offline. ━━━━━━━━━━━━━━━━━━ WHAT IT DOES Paste any suspicious message (SMS, email, WhatsApp, anything) — or click a built-in demo — and in one click you get: • A clear verdict: High risk / Suspicious / No clear signs • The red flags highlighted right inside your message • The scam type: fake bank, delivery, crypto, gift card, refund/callback, prize, government impersonation, account takeover, and more • "How this scam works" — so you learn to spot the next one • Your safe next step ━━━━━━━━━━━━━━━━━━ HOW IT WORKS White Fin reads the text on your computer and checks it against built-in knowledge of the world's ~50 most-impersonated brands and dozens of scam patterns: look-alike links, pressure wording, requests for passwords/codes/card details, dangerous attachment names, and more. It never tells you a message is "safe" — only flags danger or tells you to verify yourself. No AI in the cloud, no online guessing — just fast, local checks. ━━━━━━━━━━━━━━━━━━ WHY I BUILT IT Scams hit the people we love most — parents, grandparents, anyone in a rushed moment. Most "scam checkers" want your email, an account, or upload your private messages to a server. I wanted the opposite: a tool that helps you, teaches you, and respects your privacy completely. ━━━━━━━━━━━━━━━━━━ PRIVACY — THE CORE PROMISE 🔒 100% offline — no internet connection is ever used 🙅 No account, no cloud, no tracking 🗑 Nothing is stored — your messages never leave your computer Don't take my word for it: disconnect your internet and it works exactly the same. ━━━━━━━━━━━━━━━━━━ ABOUT THE NAME A white shark's fin cutting the surface — a quiet guardian watching the water, spotting danger before it reaches you. ━━━━━━━━━━━━━━━━━━ NO DIGITAL SIGNATURE — AND HOW TO VERIFY YOU CAN TRUST IT (BEING HONEST) I'm a solo indie developer releasing this for free. Code-signing certificates cost a yearly fee I'm not paying yet — so Windows may show an "unknown publisher" warning. That's exactly why I'm giving you a way to verify the file yourself: This file's unique ID (SHA-256 hash): 184a6d78cc7cfaae3fc0b5b43115f15a346ac5e7960fd7a2d0dfbfc163041ed4 Go to virustotal.com, paste that hash (or upload the file), and check it yourself. You'll see about 1 out of 70 engines flag it — that single hit is a false positive (a generic, automated guess from one small engine, common for unsigned apps). Every major engine — Microsoft, BitDefender, Kaspersky, Avast, ESET, CrowdStrike — reports it CLEAN, and the behavior report shows ZERO network activity. Transparency matters to me more than looking polished. (Note: this hash matches this exact version of the file. If you downloaded it here, it's the right one.) ━━━━━━━━━━━━━━━━━━ HOW TO USE 1. Download and double-click — no installation 2. Paste a suspicious message, or click a demo 3. Press Check ━━━━━━━━━━━━━━━━━━ HONEST LIMITS • Windows only (for now). • White Fin is an educational aid — it can't catch every scam and is never a confirmation that a message is safe. When in doubt, always contact the company directly using details you find yourself. ━━━━━━━━━━━━━━━━━━ DISCLAIMER — PLEASE READ White Fin is a free, educational tool provided "as is", with no warranty of any kind. Use it at your own risk. What this tool does NOT do / guarantee: • It is NOT antivirus, NOT a security guarantee, and NOT professional advice. • It can make mistakes in BOTH directions: it may flag a perfectly safe message ("false alarm"), and it may MISS a real scam. • "No clear signs" is NOT a confirmation that a message is safe or legitimate. • It does not open links, scan files, or protect your device — it only reviews the text you paste. • Drag a file in — White Fin checks its NAME for dangerous or disguised types (like invoice.pdf.exe, .scr, .js, .iso). It never opens the file or scans its contents — it only inspects the name, fully offline. What the developer is NOT responsible for: • I am a solo developer offering this for free. I am NOT liable for any loss, damage, financial harm, data loss, or any consequence arising from using this tool, relying on its result, or being unable to use it. • I do not guarantee accuracy, availability, or that the tool fits any particular purpose. • Company and brand names are the property of their owners; White Fin is independent and NOT affiliated with, endorsed by, or connected to any of them. What YOU, the user, are responsible for: • Your own decisions and actions. Always think for yourself and, when in doubt, contact the company directly using details you find on your own. • Never clicking links, paying, replying, or sharing passwords/codes/personal details based on this tool's result — verify independently first. • What you choose to paste into the tool (it runs offline and stores nothing, but the choice is yours). • The file/attachment check looks ONLY at a file's name and extension — it does NOT open files, scan their contents, or detect malware hidden inside a file. It is not a replacement for antivirus. By downloading and using White Fin, you accept this disclaimer. ━━━━━━━━━━━━━━━━━━ It's free. Try it, share it with someone who needs it, and tell me what to improve — I'm building this in the open and would love your feedback. 🦈