Convert a List to YAML
Create a YAML file. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Convert a List to YAML
- 1. Paste your list. Put one item per line into the input pane, such as a set of values you need to insert as a sequence into a YAML config file.
- 2. Check the YAML sequence formatting. Each item is prefixed with a dash and a space to form a valid YAML sequence, matching the syntax used in files like docker-compose.yml or GitHub Actions workflows.
- 3. Copy the YAML sequence. Copy the dash-prefixed lines into a YAML config file wherever a sequence of values is expected, such as a list of ports, dependencies, or steps.
When to use Convert a List to YAML
Convert a List to YAML formats each line of a plain list as a YAML sequence item, prefixed with a dash, ready to paste into any file that uses YAML syntax. Reach for Convert a List to YAML whenever a plain list of values needs to become a proper sequence block.
- Adding a list of dependencies to a YAML config. You have a plain list of package names that need to become a YAML sequence in a docker-compose.yml or similar config file. Convert the list and paste it into the file.
- Building a CI workflow step list. A GitHub Actions or GitLab CI file needs a sequence of job names or paths, and you typed them faster as a plain list. Convert to YAML and paste into the workflow file.
- Preparing a Kubernetes manifest value. A Kubernetes manifest needs a YAML list of values under a given key, such as environment names. Convert your plain list to the dash-prefixed format expected.
- Formatting a list for an Ansible playbook. An Ansible playbook or inventory file needs a plain list of hosts or tasks formatted as YAML. Convert the list once and paste the sequence into the playbook.
Examples
List to YAML sequence
Input
apples milk & eggs
Output
- apples - milk & eggs
About the Convert a List to YAML tool
Convert a List to YAML runs as plain JavaScript in your browser tab, with no server behind it. Create a YAML file. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's List Tools section, 114 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
There is nothing to configure. Provide the input and the result appears on its own. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Convert a List to YAML free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.