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CSV to YAML Converter

Transform CSV data into YAML format

CSV Input

Convert CSV to other formats

CSV to ActionScriptCSV to ASCIICSV to AsciiDocCSV to ASPCSV to AvroCSV to BBCodeCSV to CSVCSV to DAX

YAML Output

Convert other formats to YAML

Excel to YAMLHTML to YAMLJSON to YAMLLaTeX to YAMLMarkdown to YAMLMediaWiki to YAMLMySQL to YAMLSQL to YAML

Related Tools

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Convert JSON data to ActionScript objects and arrays

JSON to ASCII

Convert JSON to ASCII table format with borders and alignment

JSON to AsciiDoc

Convert JSON to AsciiDoc table markup

JSON to ASP

Convert JSON data to ASP arrays and recordsets

JSON to Avro

Convert JSON to Apache Avro schema and data format

JSON to BBCode

Convert JSON to BBCode table format for forums

About the CSV to YAML Converter

Convert spreadsheets into clean YAML arrays and objects in seconds. This tool parses your CSV, respects headers, and generates YAML suitable for configuration files, infrastructure manifests, or API payloads.

Key Features

  • Header-Aware Output: When headers exist, each row becomes a YAML mapping with meaningful keys.
  • Array Mode: Without headers, rows are emitted as YAML sequences (e.g., - ["a", "b"]).
  • Delimiter Options: Works with comma, semicolon, tab, and pipe-delimited CSV.
  • Quote Escaping: Automatically quotes values containing YAML-sensitive characters (:, #, []).
  • Instant Preview: Output updates as you paste or upload data.
  • Copy/Download: Copy the YAML or download it as output.yaml.

How to Convert CSV to YAML

  1. Paste or Upload CSV: Provide your dataset via the text area or upload a .csv file.
  2. Choose Options: Select the delimiter and toggle “First row is header.”
  3. Review YAML Output: Inspect the generated YAML list on the right.
  4. Copy or Download: Use the buttons to copy or download the YAML document.
  5. Integrate: Drop the YAML into config files, GitOps manifests, or API stubs.

YAML Formats Produced

  • Array of Objects: - name: John (default when headers are present).
  • Array of Arrays: - ["John", "28"] when headers are disabled.

Common Use Cases

  • Configuration Files: Generate YAML for Kubernetes manifests, Ansible vars, or app configs.
  • API Development: Create mock payloads for OpenAPI/Swagger or GraphQL samples.
  • Documentation: Turn CSV tables into YAML snippets for READMEs or tutorials.
  • DevOps Automation: Convert spreadsheet-driven parameters into YAML for pipelines.

Best Practices

  • Keep header names slug-friendly (lowercase, hyphen/underscore) for cleaner YAML keys.
  • Review values that contain numbers or booleans; quote them if they should remain strings.
  • Break huge CSVs into chunks to keep YAML files manageable.
  • Validate the output with yamllint or CI checks before deploying.

FAQ

  • Does this infer YAML types (numbers, booleans, null)? The converter focuses on structure and basic quoting rules. If a value must be treated as a specific type, adjust it manually in the YAML after export.
  • What if my keys contain spaces or special characters? Keys are taken directly from your headers. For maximum compatibility, prefer simple, slug-style names before converting.
  • Can I generate nested YAML structures? This tool creates flat mappings and sequences from tabular CSV data. You can rearrange or nest sections manually once the YAML is generated.
  • Is it safe for confidential data? Yes. All processing runs in your browser, and the CSV content is not uploaded to any server.

Privacy & Security

All CSV to YAML conversions happen entirely in your browser using client-side JavaScript. Your CSV data and YAML output never leave your device.

Start Converting CSV to YAML

Paste your CSV, pick delimiter/header options, and instantly generate YAML arrays or objects ready for configs, APIs, or automation scripts.