YAML comment remover

Remove comments from
YAML code.

Remove comments from YAML config files online. Handles GitHub Actions workflows, Docker Compose files, Kubernetes manifests, and any other .yaml/.yml document.

Open the toolUse the API or CLI
Free, no signup Runs in your browser Instant, no upload Works on .yaml files

Before and after

Real-world YAML code on the left. The same code with every comment removed on the right.

yaml-input.yaml
# Deploy workflow
name: Deploy

on:
  push:
    branches: [main] # only main triggers deploy

env:
  APP: my-app          # service name
  COLOR: "#ff0000"     # quoted, not a comment

jobs:
  build:
    runs-on: ubuntu-latest # default runner
    steps:
      # Check out the code
      - uses: actions/checkout@v4

      # Install dependencies
      - run: npm ci

      # Run tests
      - run: npm test
      # - run: npm run e2e # disabled for now
yaml-output.yamlcleaned
name: Deploy

on:
  push:
    branches: [main]

env:
  APP: my-app
  COLOR: "#ff0000"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - run: npm ci

      - run: npm test
Why use it

Built for YAML specifically.

YAML files for CI pipelines and infrastructure-as-code accumulate comments fast, explanations, alternative settings, deprecated keys. Removing them shrinks the file, makes diffs easier to read, and produces a clean canonical version of the config. Uncommenter handles YAML's `#` line-comment syntax while keeping every key and value untouched.

  • # line comments removed
  • String values with `#` preserved (when quoted)
  • Indentation and structure preserved exactly
  • Multiline strings (| and >) untouched
  • Auto-detected from .yaml and .yml files
How it works

Strip comments in 30 seconds.

  1. 1

    Open the tool

    Head to uncommenter.com/tool. Nothing to install. Nothing to sign up for.

  2. 2

    Paste your YAML code

    Drop your .yaml file in, or paste code into the editor. Auto-detection picks up YAML from the extension or file content.

  3. 3

    Click 'Remove Comments'

    The parser walks every character with a real state machine, strings, regex, and other context-sensitive parts are detected and left alone.

  4. 4

    Copy or download

    Grab the cleaned output. Your code never left your browser.

FAQ

YAML questions, answered.

What about quoted strings containing #?

+

Quoted strings are preserved. "#ff0000" or 'a #hashtag' inside a value will not be touched.

Will it preserve indentation?

+

Yes, only comment characters and the trailing whitespace on a line are removed. The structural indentation YAML relies on is left intact.

Does it handle multi-line block scalars?

+

Yes. Block scalars introduced by | or > are recognized as multi-line strings, so comment-like content inside them is preserved.

Other languages

Working in something else?

JavaScriptTypeScriptPythonJavaCC++C#Go

Plus 35+ more languages supported in the live tool , including HTML, YAML, Dockerfile, Terraform, Solidity, and more.

Try it on your YAML code now.

Free forever. No signup. No upload. Runs entirely in your browser.

Open uncommenter