LoggerPro for Delphi

The Modern, Async, Pluggable Logging Framework for Delphi

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📖 The official guide — install, API reference, tutorials, code samples, FAQ:

https://www.danieleteti.it/loggerpro/

Available in 🇬🇧 English · 🇮🇹 Italiano · 🇪🇸 Español · 🇩🇪 Deutsch

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What is LoggerPro

Async, pluggable, production-proven logging framework for Delphi. Used in thousands of applications worldwide since 2010.

• Async by design - non-blocking, zero impact on your app's hot path
• 20+ built-in appenders - File, Console, HTTP, ExeWatch cloud observability, Grafana Loki via LogFmt, ElasticSearch, UDP Syslog, Windows Event Log, Database, ...
• Fluent Builder API - Serilog-style configuration
• JSON configuration - reshape the logger at deploy time without rebuilding
• Structured logging - first-class LogParam context
• Cross-platform - Windows, Linux, macOS, Android, iOS
• Thread-safe, DLL-safe, Apache 2.0

What's New in 2.1

• 🆕 JSON configuration - reshape your logger at deploy time without rebuilding
• 🆕 HTML live log viewer - self-contained .html with filters, search, export, live tailing
• 🆕 ExeWatch integration - first-class cloud observability via ExeWatch
• 🆕 Pluggable appenders - optional backends self-register, just add the uses clause
• 🆕 LogFmt renderer - spec-compliant key=value output for Loki, humanlog, ripgrep
• 🆕 FileBySource appender - per-tenant subfolders with day+size rotation
• 🆕 Runtime log level - change the global gate on the fly via ILogWriter.MinimumLevel
• 🆕 UTF-8 console output - correct Unicode in Docker and Windows consoles
• 🆕 DLL-safe init - fixes the Windows Loader Lock deadlock
• 🆕 ElasticSearch auth - Basic / API Key / Bearer Token
• 🆕 UDP Syslog local time option
• 🆕 GetCurrentLogFileName API on file appenders

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👉 Everything else — install, full API, every code sample, LogFmt querying, Docker/DLL guidance, Windows Service integration, JSON config schema, FAQ — lives in the official guide:

www.danieleteti.it/loggerpro

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License

Apache License 2.0 - free for personal and commercial use.

Author

Daniele Teti

• Blog & docs: danieleteti.it · danieleteti.it/loggerpro
• Twitter/X: @danieleteti

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LoggerPro - Professional Logging for Professional Delphi Developers
📖 Full documentation →