# Data Format Converter

> Convert between JSON, YAML, XML, CSV, TSV and TOML in any direction, locally in your browser.

To convert between data formats, paste your content, pick the format it is in and the format you want. Conversion between JSON, YAML, XML, CSV, TSV and TOML happens entirely in your browser, so API payloads, config files and customer data are never uploaded to a server.

**URL:** https://convertto.tech/t/data-format-converter
**Category:** Data & Format Tools (https://convertto.tech/c/data-tools)
**Privacy:** Runs entirely in the browser; no upload
**Cost:** Free, no sign-up
**Last updated:** 2026-08-01

## Key facts

- **Privacy:** Runs entirely in your browser — nothing is uploaded
- **Cost:** Free, unlimited, no sign-up

## How to use

1. Enter or paste your input.
2. Choose the from.
3. Choose the to.
4. Set the indent.
5. The result appears immediately — copy or download it.

## FAQ

### What happens to nested data when converting to CSV?

CSV is flat, so nested objects are flattened into dotted column names like address.city, and arrays are serialised as JSON strings inside a single cell.

### Why does my XML conversion add a root element?

XML requires exactly one root element. If your data is an array or a primitive, it is wrapped in a <root> element so the output is valid XML.

### Is my data sent to a server?

No. Parsing and serialisation run in your browser using JavaScript. Nothing you paste is transmitted, which is why this is safe for production config and API responses.

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