How to open a .yaml file: without installing anything

How to open a .yaml file

A .yaml is a YAML file: Human-friendly configuration. Indentation instead of braces. Excel, Google Sheets, Numbers, LibreOffice Calc, any text editor open it. Or drop it below: it opens and converts in your browser, nothing to install.

Drop files here or click to chooseSeveral files at once are fine.

🔒 Nothing is uploaded. Check the Network tab of your browser: it stays empty.

Three ways to open it

Drop the .yaml file above: it opens and converts right here, nothing to install.
For a desktop app: Excel, Google Sheets, Numbers, LibreOffice Calc, any text editor.
If it still will not open, convert it to CSV, that is what most people are really after.

Convert a .yaml

YAML → CSV YAML → TSV YAML → XLSX YAML → XLS YAML → ODS YAML → JSON YAML → NDJSON YAML → XML

Questions

What program opens a .yaml file?

Excel, Google Sheets, Numbers, LibreOffice Calc, any text editor. Or drop it here, without installing anything.

Why won't my .yaml open?

Either the viewer does not know YAML (human-friendly configuration. indentation instead of braces.), or the file is damaged or misnamed. Converting to CSV fixes the first case.

Is it safe to open a .yaml here?

Yes: the file is read in your browser and never leaves your device.