YAML to CSV Converter

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What is YAML?

  • YAML stands for "YAML Ain't Markup Language" or sometimes "Yet Another Markup Language."
  • It is a human-readable data serialization format.
  • YAML is often used for configuration files and data exchange between languages with different data structures.
  • It uses indentation to represent the structure of data and does not rely on tags or braces.
  • YAML files typically have the ".yaml" or ".yml" file extension.
  • The MIME type for YAML is not officially registered, but it is commonly recognized as "application/x-yaml."

YAML Example:

  name: John Doe
  age: 30
  occupation: Engineer
    email: john.doe@example.com
    phone: "+123 456 7890"
    address: xyz 123 abc
    city: Anytown
    country: XYZ

Advantages of Using YAML:

  • Human-Readable: YAML is designed to be easy for humans to read and write, with a clean and simple syntax.
  • No Complex Symbols: YAML uses indentation instead of complex symbols like braces or brackets, making it more straightforward.
  • Data Serialization: YAML is suitable for serializing complex data structures in a readable and concise format.
  • Language Agnostic: YAML is independent of programming languages, making it versatile for configuration files and data exchange.

Read More:

Explore more about YAML on Wikipedia.

What is CSV?

  • CSV stands for "Comma-Separated Values."
  • It is a plain text file format used to store and exchange tabular data.
  • In a CSV file, each line represents a row of data, and the values within each row are separated by commas.
  • This format is commonly employed for its simplicity and ease of use in storing structured information, such as spreadsheet data or database exports.
  • CSV files are platform-independent and can be opened and edited with various software applications, making them a popular choice for data interchange between different systems and programs.
  • CSV files commonly use the ".csv" file extension.
  • The MIME type for CSV is "text/csv."

CSV Example:

Name, Age, Occupation
John Doe, 30, Engineer
Jane Smith, 25, Teacher
Bob Johnson, 35, Doctor

Advantages of Using CSV:

  • Human-Readable: CSV files are easy to read and understand, making them accessible to both technical and non-technical users.
  • Platform-Independent: CSV files can be used on various platforms, ensuring compatibility across different operating systems.
  • Simple Structure: The straightforward structure of CSV files simplifies data storage and retrieval processes.
  • Wide Application: CSV is widely used for tasks such as data import/export, data migration, and sharing structured information.

Read More:

Explore more about CSV on Wikipedia.

How to Convert YAML to CSV

Step 1: Input Options

ConversionTab offers users two convenient ways to input their YAML data:

  • Text Tab: Users can manually enter YAML data as a valid string in this tab.
  • File Tab: Users can upload their YAML file through the 'Drop/Browse File' feature, making it easy to work with existing data.

Step 2: Field Separator Option

Use the "Field Separator" option to specify the character or symbol that separates individual fields or columns in the resulting CSV file.

Step 3: Custom Separator

Specify a custom separator not listed in the predefined options by entering it in the "Other" field.

Step 4: Modifying Conversion Options

Review and modify conversion options before initiating the process to ensure accurate results.

Step 5: Accessing CSV Output

Initiate the conversion process by clicking the 'Convert' button and access the resulting CSV data in the textarea.

Choose either to copy the data for use elsewhere or download the CSV file, with the option to specify a custom filename.


1. What is YAML to CSV conversion?

The YAML to CSV conversion feature allows users to seamlessly convert YAML data into CSV format. This conversion facilitates data interchange and analysis across different platforms and tools that support CSV format.

2. What is the purpose of the "Field Separator" option?

The "Field Separator" allows you to specify the character or symbol that separates individual fields or columns in your CSV file. Common separators include commas (,), semicolons (;), spaces, tabs, bars (|), and hyphens (-). Choosing the correct separator ensures accurate conversion.

3. How do I specify a custom separator not listed in the predefined options?

If your CSV file needs to use a custom or less common separator not listed in the predefined options, you can enter it in the "Other" input field. This ensures that the conversion tool recognizes the correct separator and processes your data accurately.

4. Can I modify conversion options after starting the process?

Typically, you can modify these options before initiating the conversion process. However, it's important to review your settings carefully before converting to CSV, as changes made after starting the process may affect the results.

5. What if the YAML data is invalid?

If the YAML data is invalid, the converter may fail to process it and provide an error message. It's crucial to ensure that your YAML data is valid before attempting conversion to CSV.

6. Is there a limit to the file size for conversion?

Yes, there is a limit to the file size for conversion. Currently, the maximum file size supported for conversion is 25 MB. If your file exceeds this limit, an error alert will be shown, and the conversion will not proceed. Please ensure that your file is within this size limit to avoid errors.

7. How do I obtain the CSV output?

Once the conversion settings are configured, users can initiate the conversion process by clicking the 'Convert' button. The resulting CSV data is displayed in a textarea, providing users with two options:

  • Copy: Users can copy the generated CSV data for use elsewhere.
  • Download: Users can download the CSV file, with the option to specify a custom file name if desired.

This flexibility ensures that users can choose the most suitable method for accessing their converted data.

8. Is there an example YAML and a way to reset the input/output data?

ConversionTab offers additional features to improve the user experience:

  • Example YAML: Users can access a sample YAML by clicking the 'Example' button, which fills the text area with sample data, facilitating the understanding of the conversion process.
  • Reset Functionality: To clear input and output data, users can utilize the 'Clear' button, ensuring a clean slate for new conversions or adjustments.

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