JSON to YAML on Mac, Linux, and Windows — Works Everywhere

The browser JSON to YAML converter works identically on every OS because it runs in the browser. macOS, Windows, Linux, ChromeOS, iPadOS, and Android all get the same interface and the same output. Per-OS CLI tools (yq, jq pipes, PowerShell ConvertTo-Yaml) have their place for automation. For one-off conversions, a browser tab wins on every platform.

macOS — Browser vs Homebrew yq

Mac paths:

• Browser — Safari or Chrome, open the converter, paste, click, copy. Zero install.
• yq via Homebrew — brew install yq (30 seconds if Homebrew is already there). Then yq -o yaml < input.json.
• Python + PyYAML — built-in Python on newer Macs, pip install pyyaml, 3-line script.

For one-off: browser. For shell pipelines: yq. For automation inside Python scripts: PyYAML.

Windows — Browser vs PowerShell vs WSL

Windows options:

• Browser — Edge or Chrome, same flow as everywhere.
• PowerShell — ConvertFrom-Json gets you an object. Converting that to YAML requires the powershell-yaml module: Install-Module powershell-yaml. Then Get-Content input.json | ConvertFrom-Json | ConvertTo-Yaml.
• WSL + yq — install yq inside WSL Ubuntu and pipe as you would on Linux.
• Chocolatey — choco install yq for native Windows yq.

Locked-down corporate Windows often blocks modules, Chocolatey, and WSL install. Browser works anyway.

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Linux — CLI Is Home Turf

On Linux you already live in the terminal:

sudo apt install yq   # or snap install yq
yq -o yaml < input.json > output.yaml

Or Python:

python3 -c "import json,yaml,sys; print(yaml.dump(json.load(sys.stdin)))" < input.json

Browser still useful when debugging inside a browser-based dashboard and just want a quick preview. For everything else, CLI wins on Linux.

ChromeOS, iPad, Android — Browser-Only Territory

Mobile and ChromeOS don't ship with shell tools. On iPad there's no Terminal app for most users. On ChromeOS you can enable Linux containers, but it's setup overhead.

A browser-based converter is the path. Open the tab, paste, click Convert, tap Copy. Works offline once the page has loaded. Handy on flights with iPad or on managed Chromebooks in schools.

The Cross-Platform Pitch

Power users on Linux will always be faster with yq. The browser tool isn't for them — it's for everyone else. Specifically:

• Team members with mixed OSes who all need the same tool.
• Fresh machines without any CLI tools installed.
• Locked-down corporate Windows endpoints.
• Mobile and tablet users.
• Anyone who converts JSON to YAML less than daily.

One URL across every machine beats "which command does it on your OS?"

Frequently Asked Questions

Does the browser tool work offline?

Yes, after initial load. The conversion logic is JavaScript in the tab. Disconnect Wi-Fi and it still works. Useful on planes or on corporate networks with picky firewalls.

Is PowerShell's ConvertTo-Yaml built in?

No — it's in the powershell-yaml module. Install with Install-Module powershell-yaml. On managed endpoints, the install may require admin approval.

Can I use the browser tool on iPadOS / Android?

Yes. Safari and Chrome on iPad, Chrome and Firefox on Android all work. Paste with standard clipboard, tap Copy to write the YAML back to clipboard. No app needed.

What's the fastest JSON to YAML on Linux?

yq -o yaml is hard to beat. Streaming, native binary, single command. For one-off preview, the browser is still faster end-to-end because you skip the install.