Log tools for prettifying application logs and extracting debug IDs

Logs are useful only when the important part can be found quickly. These tools help clean formatting, extract IDs, inspect embedded payloads, and compare suspicious output during debugging sessions.

Tools in this workflow

Dev Debug Helpers

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Log Prettifier

Format JSON logs and semi-structured log lines into cleaner readable output for debugging.

Dev Debug Helpers

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Trace / Correlation ID Extractor

Scan pasted text or logs and extract likely trace, request, and correlation identifiers.

Formatters

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JSON Formatter

Pretty-print raw JSON, minify payloads, and inspect syntax errors with clear feedback.

Validators & Testers

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Regex Tester

Test regex patterns against sample text, inspect matches, and catch syntax errors immediately.

Converters

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Timestamp Converter

Convert Unix seconds, Unix milliseconds, and ISO date strings with readable UTC and local output.

Related guides

Regex basics for developers

A practical introduction to regular expressions for validation, extraction, log search, and text debugging.

What is JSON Formatter and how to use it

Learn what a JSON formatter does, why valid JSON matters, and how developers use formatting during API debugging.

FAQ

What makes log formatting useful?

Readable log lines make timestamps, levels, request IDs, JSON fragments, and error messages easier to scan during incidents and support investigations.

Should I paste production logs into a tool?

Redact secrets, tokens, emails, account IDs, and internal URLs before sharing or storing formatted log output.