YAML to CSV
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Supported formats: .csv,.xlsx,.xls,.xlsm,.xlsb,.tsv
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About YAML to CSV
Flatten a YAML list of mappings into CSV rows, entirely in your browser — no upload, no file size limit.
Kubernetes manifests, Ansible inventories, and CI pipeline configs are written in YAML, but reviewing a long list of similarly-shaped entries is easier in a spreadsheet.
This tool parses YAML with the same js-yaml library used across the rest of the toolkit and flattens a top-level list of mappings into CSV rows, taking the union of keys across all entries as the header.
It also converts CSV back into a YAML list of mappings when you need to go the other way, for example to hand data to a config-driven tool.
Category: Conversion & ExportCommon Use Cases
- Reviewing a Kubernetes or Ansible inventory list in a spreadsheet
- Flattening a YAML-based data export into CSV for analysis
- Turning a cleaned CSV back into YAML for a config-driven tool
Key Features
- Parses YAML with the same battle-tested js-yaml library used elsewhere in the toolkit
- Takes the union of keys across all entries as the CSV header
- Handles large files in chunks so the tab stays responsive
The YAML to CSV tool is compatible with: Kubernetes Manifests, Ansible Inventories, CI/CD Config Files.
Run Schema Detect afterward to confirm column types once the data is flattened into CSV.
Frequently Asked Questions
A top-level list where each item is a mapping (key-value pairs) — the shape used by most Kubernetes, Ansible, and CI config lists.
Nested structures are flattened to their string representation in a single cell, since CSV has no native way to represent nesting.
No, parsing happens entirely in your browser — the YAML library is only fetched when you open this specific tool and the file never leaves your device.
Built for DevOps and platform engineers who need to review or edit YAML lists as a spreadsheet.
Read the related guide →