PromLens

PromLens is a query builder for PromQL, the query language used with Prometheus and compatible systems. It solves the problem of writing, debugging, and understanding complex PromQL queries by providing autocompletion, visual editing, and query tree visualization. It is designed for developers, SREs, and data analysts who work with Prometheus metrics. PromLens is positioned as a power tool that enhances productivity and reduces frustration, and it is available as an open-source tool that can be deployed via Docker.

Key features

• Contextual autocompletion and linting
• Form-based visual query editor
• Query tree visualization with sub-expression results
• Label value insights and occurrence counts
• Warning hints and one-click actions
• Connect to any PromQL-compatible endpoint
• Visualize any part of query as table or graph
• Query explain view for understanding
• Built-in metrics explorer with metadata
• Shareable pages with full state
• Connect to Grafana datasources