Go Map ↔ JSON

Free Online Go Map ↔ JSON Converter

Convert between Go map fmt output and JSON for debugging, with support for nested maps and slices. All processing runs locally in your browser.

JSON indent

Examples:

Go map input

JSON output

Usage Guide

Paste Go map or struct logs into the input box.
Click 'Map → JSON' to convert to standard JSON, or 'JSON → Map' for the reverse.
Supports nested structures, slices, and mixed key types.
Converted JSON is ready for API debugging or formatted viewing.

Tips

This tool runs entirely in your browser; no data is uploaded to any server.
Supports common Go print formats like map[string]interface{} and []interface{}.
If conversion fails, check for non-standard characters or unbalanced brackets.

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