Question 1

Is my data safe? Do you store uploaded files?

Accepted Answer

All conversions happen entirely in your browser using client-side JavaScript. No data is sent to our servers or stored anywhere. Your files are processed in memory and discarded immediately after conversion.

Question 2

What formats can I convert between?

Accepted Answer

You can convert between JSON, YAML, XML, TOML, and CSV in any direction. The tool supports bidirectional conversion with real-time validation for all format combinations.

Question 3

Why does my nested JSON lose structure when converting to CSV?

Accepted Answer

CSV is a flat, tabular format designed for simple row-and-column data. When converting nested structures to CSV, the tool automatically flattens them using dot notation (e.g., address.city). For complex nested data, consider using JSON, YAML, or XML instead.

Question 4

Can I convert YAML comments to other formats?

Accepted Answer

No, YAML comments cannot be preserved when converting to other formats because JSON, XML, TOML, and CSV do not support comments in their specifications. Comments are automatically stripped during conversion.

Question 5

What happens to XML attributes during conversion?

Accepted Answer

XML attributes are converted to object properties with an @ prefix (e.g., @id, @class) when converting to JSON, YAML, or TOML. This preserves the attribute information while maintaining valid syntax in the target format.

Question 6

Why does TOML conversion fail with null values?

Accepted Answer

TOML specification does not support null/nil values. If your data contains null values, you must either remove them or replace them with empty strings or default values before converting to TOML.

Question 7

Can I use this tool for large files?

Accepted Answer

For best performance, we recommend files under 5MB. Files over 10MB may cause browser slowdowns or crashes. For very large files, consider using command-line tools like yq, jq, xmllint, or dedicated conversion libraries in your programming language.

Question 8

How does auto-detect work?

Accepted Answer

The auto-detect feature analyzes your input using format-specific patterns (JSON braces, YAML colons, XML tags, TOML sections, CSV delimiters) and validates against each format specification until it finds a match. It works best with well-formed, valid data.

Question 9

Can I convert multiple files at once?

Accepted Answer

Currently, the tool processes one file at a time. For batch conversion of multiple files, consider using command-line tools or scripting with libraries like js-yaml, fast-xml-parser, or papaparse in your own automation workflows.

Question 10

What character encoding does the tool support?

Accepted Answer

The tool supports UTF-8 encoding by default, which covers all modern text formats and international characters. If you have files in other encodings (like ISO-8859-1 or Windows-1252), convert them to UTF-8 first for best results.

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