KQL Editor Syntax

Validate and highlight Kusto Query Language (KQL) syntax with real-time error detection and formatting.

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About This Tool

This KQL Editor Syntax tool provides a comprehensive environment for writing, validating, and formatting Kusto Query Language (KQL) queries. It features real-time syntax highlighting, error detection, and detailed validation results to help you write correct KQL queries for Azure Data Explorer. The tool includes a dual-pane interface with an editor on the left and results on the right, making it easy to write queries and see validation feedback simultaneously.

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How to Use

Enter or paste your KQL query in the editor pane on the left.
Click the 'Validate Syntax' button to check your query for syntax errors.
View the validation results in the right pane, including any errors with line numbers and descriptions.
Use the 'Clear Editor' button to reset the editor and start fresh.
The syntax highlighting will automatically color-code different KQL elements as you type.

Frequently Asked Questions

Find Quick Answers

What is KQL?

KQL (Kusto Query Language) is the query language used in Azure Data Explorer, Azure Monitor, Azure Sentinel, and other Microsoft services for querying structured, semi-structured, and unstructured data.

Does this tool require an internet connection?

Yes, the tool runs entirely in your browser and requires an internet connection to load the initial page, but all syntax validation happens client-side without external API calls.

Can I save my KQL queries?

No, this tool doesn't save queries to any server. All processing happens locally in your browser, so your queries remain private on your device.

What KQL syntax versions does this support?

The tool validates against the core KQL syntax used in Azure Data Explorer, including common operators, functions, and clauses like where, project, summarize, join, and let statements.

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