WAVESPEED AI YAML TO JSON Works in your browser

100% FREE

Free YAML to JSON ConverterAnchors, merge keys and all.

Q: Are big numbers kept?

Yes. Whole numbers beyond 2^53, such as 64-bit IDs, stay exact.

Paste YAML from a config, a CI pipeline or a deployment manifest and get clean JSON.
If the YAML is broken, you see the line and column.

Anchors & merge keysLine & column errorsNo upload

No sign-up No upload No limits

FromTo

Input

Or try an example

Paste or open data to convert it.

Output

Indent Minify Sort keys

Your data is converted in this browser tab and never leaves your device.

THREE SIMPLE STEPS

How to use the YAML to JSON

Paste your YAML

Paste it or drop a .yaml or .yml file.

Check it

Mistakes such as bad indentation are shown with their line and column.

Copy the JSON

Choose the indent or minify, then copy or download.

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$1 in free credits for eligible new accounts. No card needed. Generators have separate account and credit requirements. The data format converter is free.

YAML to JSON FAQ

Is this YAML to JSON converter free?

Yes, with no account and no limits.

Is my YAML uploaded?

No. It is converted in your browser tab and never leaves your device.

Are anchors and aliases supported?

Yes. Anchors, aliases and << merge keys are expanded. A file with several documents (---) becomes a JSON list.

Are big numbers kept?

Yes. Whole numbers beyond 2^53, such as 64-bit IDs, stay exact.

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