Logdy

Logdy is a lightweight, zero-dependency log viewer that streams logs into a local web UI for real-time browsing, searching, and filtering. It can be used like classic CLI tools (tail, grep, awk, jq) while providing an interactive interface in the browser.

Key Features

• Single-binary, zero-dependency distribution with an embedded web UI
• Real-time log streaming from files, stdin, sockets, or a REST API
• Filtering and exploration via facets and full-text search
• TypeScript-based custom parsers and derived columns, edited in the browser
• Supports plain text and structured logs (including JSON)
• Optional UI authentication via API key and/or UI password
• Can be embedded as a Go library to send application logs directly

Use Cases

• Tailing and interactively inspecting application logs during local development
• Exploring large log files with fast filtering, search, and structured parsing
• Lightweight log viewing for a host or container without running a full log stack

Limitations and Considerations

• Designed for interactive viewing and lightweight ingestion; it is not a full log aggregation/SIEM platform
• Stores logs in an in-memory buffer by default, so very large or long-running streams require tuning buffer limits

Logdy is well-suited for developers who want a fast, private, local-first log viewer with powerful UI-based parsing and filtering. It complements CLI workflows while adding a structured exploration interface without requiring a separate server stack.