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.
This tool parses your YAML and outputs CSV. Conversion runs entirely in your browser — nothing is sent to a server, so it's safe with production data or secrets. Repeated items in YAML (e.g. a list of objects) become CSV rows. For JSON to CSV, 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
Copy your YAML and paste it into the left editor. You can also click Upload to load a .yaml or .yml file. The Sample button loads example data. Invalid YAML will show an error.
View CSV Output
The right panel shows the flattened CSV. 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.
Is my YAML data sent to a server?
No — everything runs in your browser using JavaScript. Nothing is sent to any server. You can verify this yourself by opening your browser's Network tab while converting.
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.