Format GitLab CI YAML Online — .gitlab-ci.yml Beautifier
Format .gitlab-ci.yml with 2-space indent. Comments are not preserved on js-yaml round-trip.
Developer notes
• Pretty-prints .gitlab-ci.yml with 2-space indent. • Auto-format on paste/upload/sample; manual edits use the Format button (⌘↵). • Comments may be dropped by the YAML round-trip (silent). • Pair with validate-gitlab-ci for structural checks.
When teams pick this route
• Clean up hand-edited .gitlab-ci.yml before merge. • Align indentation across copied job templates. • Format a snippet when the IDE YAML plugin is unavailable. • Quick normalize before validate-gitlab-ci structural checks.
Worked examples
Compact stages + job
Before
After format
Single script job
Before
After format
Navigate related CI/CD tools
Validate jobs with validate GitLab CI, format Actions workflows via format GitHub Actions, or open the CI/CD hub.
GitLab CI formatter FAQ
YAML layout only
Are comments preserved?
No. js-yaml dump drops comments. Keep a backup if annotations matter.
Does this call GitLab CI Lint API?
No — formatting is fully local. Use validate-gitlab-ci for structural checks, or GitLab’s CI Lint for runner-aware validation.
What about include: remote?
Remote includes are not fetched. The formatter only rewrites the YAML you paste.
CI/CD
GitHub Actions and GitLab CI — format YAML and check workflow/job structure in your browser.
Explore other tool categories
Minify
Shrink code and assets for production — minify JavaScript, CSS, HTML, JSON and XML before gzip or CDN deploy.
Beautify
Make code readable with consistent indentation — beautify JavaScript, CSS, TypeScript, SCSS, LESS, Markdown, GraphQL, SQL, YAML and more in your browser.
Unminify
Expand minified or compressed code — unminify JavaScript, CSS, TypeScript, SCSS, LESS, SQL, YAML and other formats when debugging or reviewing.
Conversion
Transform data between JSON, YAML, XML and CSV locally — no server uploads.
CSS preprocessors
Compile SCSS or LESS to standard CSS in the browser — pair with beautify or minify for a full stylesheet workflow.
JSON Tools
Validate, format, diff and explore JSON payloads — complementary to minifiers and converters.
SVG Tools
Preview, optimize with SVGO, export Data URI, resize, beautify, convert to JSX and validate SVG — all in your browser.
DevOps & Infra
Terraform HCL format/validate/minify, Dockerfile format & lint, Docker Compose and .env validation.
Logs & observability
Line-oriented JSON/NDJSON and Nginx/Apache access logs — format, filter, validate, and CSV/TSV.
Kubernetes
Multi-doc manifests, structural validate, Ingress/Deployment starters, and Helm values formatting.
Networking / IP
CIDR, subnets, and IPv4/IPv6 helpers — in your browser.
Security & tokens
JWKS, X.509 certificates, and secrets scan — browser-local.
API & schemas
OpenAPI tools to format, validate, and lint your specs.
Encoding
Encode or decode Base64, URL components and HTML entities — client-side only.
Developer utilities
Timestamps, UUID, ULID, Nanoid, cron, passwords, regex, slugify, number bases, case, text diff, and chmod — all client-side.
Text & Markdown
Count words, build Markdown TOCs, and clean line lists — all in your browser.
Serialization
Serialize and deserialize PHP data structures beside JSON workflows.