Password Strength & Entropy Analyzer
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Calculate Shannon entropy bits and GPU crack time estimations.
Keyspace Entropy
177 bits
Pool size: 95 charsShannon Entropy (H)
4.18 b/char
113 total entropy bitsCharacter Length
27 chars
20 unique symbolsGPU Crack Time
Centuries / Billions of Years
100 GH/s hashcat rateBrute-Force Attack Resistance Across 5 Hardware Scenarios
| Threat Scenario | Hash Rate | Time to Crack |
|---|---|---|
| Online Web Form (10 req/s) | 10 / sec | Centuries / Billions of Years |
| API Burst (1,000 req/s) | 1k / sec | Centuries / Billions of Years |
| Fast GPU RTX 4090 (100 GH/s) | 100 Billion / sec | Centuries / Billions of Years |
| 8x GPU Server Rig (800 GH/s) | 800 Billion / sec | Centuries / Billions of Years |
| Nation-State Cluster (100 TH/s) | 100 Trillion / sec | Centuries / Billions of Years |
Local Computation: Shannon Entropy formulas are evaluated 100% in your browser client memory.
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100% Zero-Upload Privacy
All computation executes exclusively inside your device memory using Web APIs and WebAssembly. No data or files ever leave your browser.
Real-Time Native Execution
Zero network roundtrips. Operates offline without sending external API requests, delivering instantaneous sub-millisecond computation.
Developer-First Architecture
Engineered with RFC standards, cryptographic primitives (Web Crypto Subtle API), and production-grade formatting libraries.
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