Data & Format Conversion Tools — Free Online Converters

Convert structured data between popular formats with fast browser-based workflows.

All Data & Conversion Tools

Data

CSV ↔ JSON Converter

Convert spreadsheet-style rows into API-ready JSON payloads.

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Data

XML ↔ JSON Converter

Switch between XML and JSON for integrations and migrations.

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Data

JSON ↔ YAML Converter

Map JSON objects to YAML and validate round-trip output.

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Common data conversion use cases

API Integration

  • Convert partner payload formats quickly
  • Prepare JSON payloads for endpoint tests
  • Normalize data contracts across systems

Analytics Operations

  • Move data between spreadsheets and JSON pipelines
  • Prepare imports for BI and ETL tools
  • Clean and transform tabular exports

Developer Workflow

  • Convert config formats during deployments
  • Validate transformed output structure
  • Reduce manual format rewriting

Documentation

  • Publish examples in alternate formats
  • Generate copy-friendly transformed snippets
  • Keep docs and payloads aligned

Online format conversion tools for developers and analysts

Data conversion tasks are high-frequency and often repetitive. ToolCrux provides browser-based conversion utilities so teams can quickly move between CSV, JSON, XML, and YAML without installing extra software. These tools are especially useful for API testing, data operations, and documentation workflows where format switching is constant.

This category is built as a practical conversion hub covering structured data and markup formats. The goal is fast and reliable transformation in a single place, with output ready for copy, export, and integration.

Related Categories

DeveloperDeveloper Tools TextText Tools CategoryNetwork & Lookup Tools CategoryFile & PDF Tools

FAQ

Can I convert CSV files with custom delimiters?

Yes. The CSV ↔ JSON converter supports comma, semicolon, tab, and pipe delimiters. Select your delimiter before converting, and the tool will parse your data correctly.

Does the XML converter preserve attributes?

Yes. XML attributes are converted to JSON properties prefixed with "@" by convention, so no data is lost during conversion. Nested elements and text content are also preserved.

What is the difference between JSON and YAML?

Both are data serialization formats. JSON uses braces and brackets with strict syntax. YAML uses indentation and is more human-readable, commonly used for configuration files (Docker Compose, Kubernetes, CI/CD pipelines).

Is there a file size limit for conversions?

Since processing happens in your browser, the limit depends on your device's memory. Most files under 10 MB convert instantly. Very large files may be slow on mobile devices.

Is my data sent to a server during conversion?

No. All format conversions — CSV, JSON, XML, YAML — run entirely in your browser. Your data never leaves your device.