UltraTools LogoUltraTools
HomeConverterJSONJWTAbout
UltraTools LogoUltraTools
HomeConverterJSONJWTAbout

Log Viewer ProAnalyze Logs.

Browser-based viewer for massive log files.
Supports 1GB+ files, instant Regex search, and 100% local privacy.

Advertisement

Frequently Asked Questions

Everything you need to know about the tool.

My log file is 2GB, will it crash?

No. We use efficient chunk loading. You can open massive log files without freezing your browser.

What log formats are supported?

Any text-based log format (.log, .txt, .json) is supported.

Private & Secure

Processing happens 100% in your browser. Files are never uploaded to any server.

Blazing Fast

Powered by WebAssembly for near-native performance. No waiting for uploads.

No Install

Works on any device (Windows, Mac, Chromebook, Mobile) directly in Chrome/Edge/Firefox.

Advertisement

Powered by UltraTools Core, WebAssembly & WebGPU

100% Client-Side Processing • No Data Leaves Your Device