Open Source — MIT Licensed — Built with Rust

Debug logs faster. With AI by your side.

Logarithm is a blazing-fast, AI-powered log viewer built with Tauri and Rust. Advanced filtering, real-time search, and intelligent analysis — all running locally.

Download Free View on GitHub
Free forever No account needed Windows, macOS, Linux 100% local processing
Logarithm - Log viewer interface
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Open source

Download Logarithm

Pick your platform. Install in seconds. No account, no subscription, no catch.

Windows

Windows 10 / 11 — x64

macOS

macOS 10.15 Catalina or later

Linux

Ubuntu 20.04+ / Debian-based

Built for developers

Every feature designed to make log analysis faster, smarter, and less painful.

AI Log Assistant

Ask Logan AI to explain errors, find patterns, and suggest fixes. Works with OpenAI, Anthropic, Gemini, and Groq.

Native Performance

Built with Rust. Handles 10,000+ line files instantly. Real-time filtering with zero lag.

Advanced Filtering

Filter by log level, regex search, date/time ranges, line numbers, and severity. Fuzzy search included.

100% Private

All log processing happens on your machine. Nothing is sent to any server unless you use AI features.

Multi-File Tabs

Open multiple log files simultaneously. Switch between them instantly with a tab-based interface.

Dark & Light Themes

Beautiful dark and light modes. Syntax-highlighted log levels with color-coded badges.

See it in action

A clean, powerful interface that gets out of your way.

Logarithm dark theme main view
Logarithm dark theme with AI chat
Logarithm light theme main view
Logarithm light theme with AI chat

Meet Logan, your log analyst

Right-click any log line and ask Logan to explain it. Add multiple lines as context, mention entire files with @, and get intelligent answers powered by the AI provider of your choice.

OpenAI Anthropic Google Gemini Groq
Logan AI assistant in action