The free KeyAuth alternative
for license keys & HWID locking
PWF Auth gives you license keys, hardware-ID and multi-device binding, user accounts, sessions with an instant remote kill-switch, and over-the-air updates — behind one REST API, and 100% free.
A free backend for licensing & auth
PWF Auth is a hosted service that handles the parts every paid app needs — issuing and validating license keys, locking them to devices, authenticating users, and shipping updates — so you don't have to build or pay for auth infrastructure. If you're evaluating KeyAuth, Cryptolens, or Keygen for a VB.NET, C#, C++, Python, Electron, or Unity app, PWF Auth is the free option built for the same job.
PWF Auth vs KeyAuth
Both do license keys, HWID locking, and user accounts. Here's where PWF Auth is different.
| Capability | PWF Auth | KeyAuth |
|---|---|---|
| Price | 100% free, all features, forever | Free tier with limits + paid plans |
| License keys (expiry, ban, extend) | Yes | Yes |
| HWID / device locking | Yes | Yes |
| Multiple devices per key (tracked) | Yes, per-device tracking | Varies by plan |
| User accounts + social login | Yes (Google, Telegram) | Yes |
| Session heartbeat + instant kill-switch | Yes | Partial |
| OTA app updates / releases | Yes | Yes |
| Encrypted API envelope (AES + HMAC) | Yes | Varies |
| Official .NET NuGet package | Yes (PWFAuth) | Community examples |
| One-file SDKs (Py, C#, VB, C++, JS) | Yes, generated | Examples |
| Direct CSV / KeyAuth import | Yes, KeyAuth preset | — |
| Self-hosting | On the roadmap | Source components available |
Comparison reflects PWF Auth's own capabilities and publicly available information about KeyAuth as of August 2026. Third-party features and pricing change — always verify current details on the vendor's own site.
Why developers pick PWF Auth
The reasons teams move over from a paid or limited licensing service.
Actually free
Every feature, unlimited, forever — no per-seat pricing, no per-request billing, no feature paywall. Ship your app without a licensing bill.
First-class .NET
An official PWFAuth NuGet package for .NET Framework 4.6.2+, VB.NET WinForms, and modern .NET — plus one-file SDKs for Python, C#, C++, and JavaScript.
Painless migration
A dedicated KeyAuth CSV import preset moves your existing keys over in minutes. No lock-in — export your data anytime.
Hardened by default
Encrypted API envelope (AES-256-CBC + HMAC), HWID multi-device binding, and an instant remote kill-switch that stops a revoked client within seconds.
Moving from KeyAuth is a CSV import
Three steps to bring your licenses over.
Export your keys
Export your existing license keys to CSV from your current system.
Import with the KeyAuth preset
In the PWF Auth dashboard, open your app's License Keys page, choose Import, and pick the KeyAuth preset — column mapping is handled for you.
Drop in the SDK
Add the PWFAuth NuGet package (or a generated one-file SDK), point it at your app, and validate keys on launch.
KeyAuth alternative — FAQ
The questions developers ask before switching.
Try the free alternative
Create a free account, generate your first keys, and integrate in an afternoon.