Krypt Tweaker

A free, open-source Windows optimizer for gamers.

Krypt Tweaker applies the real registry, service and power changes that actually move FPS and input latency on Windows — wrapped in a modern UI instead of a batch script you have to trust. It snapshots your settings before it touches anything, labels every tweak by risk, and can roll all of it back in one click.

What it does

• One-click presets — Safe Optimize, Max FPS, Low Latency, Competitive, Debloat Only, Streamer, and a full Restore Defaults.
• Gaming, FPS and latency tuning — Game Mode, GPU scheduling, mouse acceleration, TCP/network tuning, MMCSS and more, each labeled from safe to experimental.
• Debloat and privacy — switch off telemetry, Cortana, lock-screen ads, Copilot and other noise without uninstalling apps.
• System control — service manager, startup manager, UWP app remover, disk cleanup, DNS presets, Winsock reset, hosts editor and power plans (including Ultimate).
• Built-in benchmark — a quick CPU, GPU, memory and disk test scored out of 10,000. Run it before and after to see the difference. Nothing leaves your PC.
• Search — find any tweak across every category and toggle it from one place.

Safe by design

• Every tweak is reversible — revert restores the Windows default or clears the value.
• A settings backup and a Windows System Restore Point are created before any preset runs.
• Tweaks carry risk labels plus admin, reboot and permanent flags, so nothing is hidden.
• No account, no telemetry, no background service.