Free YAML to CSV Converter Online
Convert YAML arrays to CSV rows instantly in your browser — no server, no signup, 100% private.
YAML Input
CSV Output
What Is YAML to CSV?
You've got a YAML file — maybe a Kubernetes manifest, a list of users, or a CI config — and you need to open it in Excel or feed it into an ETL pipeline. The problem is YAML is hierarchical and spreadsheets are flat. This tool bridges that gap: it reads your YAML 1.2 document, walks the structure, and outputs RFC 4180-compliant CSV where each repeated object becomes a row and each key becomes a column header. Great for exporting config lists, Kubernetes resource inventories, or any YAML array to a format your teammates can open in Google Sheets or Excel without installing anything.
The page reads your YAML and lays it out as comma-separated rows: each repeated item, such as an entry in a list of objects, turns into one CSV row. All of that happens locally in the tab, so secrets and production data stay on your machine. Starting from JSON instead? Use JSON to CSV.
YAML to CSV Examples
Convert YAML arrays to CSV rows. Telecom-themed example:
Example: Subscribers list
CSV Output:
Click the Sample button above to load more examples into the editor.
How to Use This Tool
Paste or Upload YAML
Start by pasting YAML on the left, or bring in a .yaml or .yml export with Upload. Sample gives you a ready-made list to convert. If the YAML does not parse, you get an error message rather than CSV.
View CSV Output
Your flattened CSV appears in the right panel. Repeated items (e.g. a list of objects) become rows; keys become column headers. Nested objects may be flattened into columns or concatenated. The structure depends on your YAML.
Copy or Download
Use Copy or Download. For JSON to CSV, use JSON to CSV. For YAML formatting, use YAML Formatter.
When YAML to CSV Helps
Config files and API responses in YAML often contain lists of objects — e.g. services, users, or config entries. Converting to CSV lets you open the data in Excel or Google Sheets for analysis, sharing with stakeholders, or importing into other systems. Database exports, Kubernetes resource lists, and CI configs in YAML can all be flattened to CSV for reporting without any special tooling.
ETL pipelines and data workflows often expect CSV. If your source is YAML (e.g. from a config repo or API), this tool flattens it. For pulling out specific values first, convert to JSON and use jq. For JSON to CSV, use JSON to CSV.
Frequently Asked Questions
How does YAML to CSV handle nested objects?
Repeated items (arrays of objects) flatten to rows — each object becomes one row. Nested objects may become dot-notation columns (e.g. user.name) or concatenated values depending on depth. For complex nesting, you may need to pre-process with jq before converting.
Does the CSV output handle commas in values?
Yes. Values containing commas, quotes, or newlines are escaped per RFC 4180. Excel and Google Sheets both handle standard CSV escaping correctly.
Does my YAML get uploaded anywhere?
No. The YAML-to-CSV conversion is plain JavaScript executing in this page. If you want proof, keep DevTools open on the Network tab during a conversion and you'll see no request carrying your data.
What if my YAML is a single object, not an array?
A single object becomes a single CSV row. Nested keys may become column headers. For a flat key-value config, you get one row with key-value pairs as columns.
Can I convert Kubernetes YAML to CSV?
Yes. A list of Kubernetes resources (e.g. from kubectl get pods -o yaml) can be converted to CSV for spreadsheet analysis. Nested fields like metadata.name and status.phase become columns. See the kubectl cheatsheet for output options.