Zestro Gaming
Gaming PC Diagnostic & Configuration Tools
6+
Tools Available
100%
Free to Use
Accurate
Calculations
Available Tools
Select a tool below to get started. More tools are being added regularly.
Bottleneck Calculator
Analyze CPU and GPU compatibility to identify performance bottlenecks in your gaming system
Microphone Tester
Voice Check: Analyze Gain, Clarity, and Background Noise Suppression.
Screen Tester
Pixel-Perfect Precision: Detect Dead Pixels, Backlight Bleed, and Color Defects Instantly.
Keyboard Tester
Instant Key Detection: Troubleshoot Broken Keys and Registry Issues in Real-Time.
Gamepad Tester
Full Control: The Ultimate Online Diagnostic Tool for Gamepads and Joysticks.
Most Popular Tools
Discover our most-used calculators trusted by thousands of gamers worldwide.
Trusted by Gamers Worldwide
Join thousands of gamers who rely on our tools for their PC optimization.
Choose Your Tool
Select from our collection of specialized gaming calculators.
Enter Your Specs
Input your hardware details or game settings for analysis.
Get Instant Results
Receive accurate calculations and recommendations immediately.
Why Choose Us
Built by gamers, for gamers. Here’s what makes our tools stand out.
100% Free
All our tools are completely free to use with no hidden fees.
Accurate Results
Powered by real-world benchmarks and reliable data sources.
No Sign-up Required
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Instant Calculations
Get results in seconds with our optimized algorithms.
Trusted by Gamers Worldwide
Join thousands of gamers who rely on our tools for their PC optimization.
50K+
Active Users
100K+
Calculations Made
99%
Accuracy Rate
150+
Countries Reached