Unminify YAML Online — Free YAML Formatter

Unminify compressed YAML instantly. Restore readable formatting from minified configs — browser-only processing.

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YAML Unminification

Unminify YAML online.

Features

Restore readable indentation.

Unminify YAML

Restore readable indentation.

Basic example

Minified YAML

apiVersion: apps/v1
kind: Deployment
metadata: {name: checkout-api, labels: {app: checkout}}
spec: {replicas: 3, selector: {matchLabels: {app: checkout}}, template: {metadata: {labels: {app: checkout}}, spec: {containers: [{name: api, image: registry.example/checkout:2.4.1, ports: [{containerPort: 8080}]}]}}}

Formatted YAML

apiVersion: apps/v1
kind: Deployment
metadata:
  name: checkout-api
  labels:
    app: checkout
spec:
  replicas: 3
  selector:
    matchLabels:
      app: checkout
  template:
    metadata:
      labels:
        app: checkout
    spec:
      containers:
        - name: api
          image: registry.example/checkout:2.4.1
          ports:
            - containerPort: 8080

Options

Indent Width

2 or 4 spaces for beautify and unminify.

String Quotes

Minimal or double-always quoting on dump.

YAML Style

Readable (80 col) or tight (compact) dump.

YAML conversion helpers

Use JSON → YAML, YAML → JSON, YAML → XML or YAML → CSV for format conversion.

FAQ — Unminify YAML

Unminification

Same as beautify?

Yes — both use yaml.load → yaml.dump.

Unminify

Expand minified or compressed code — unminify JavaScript, CSS, TypeScript, SCSS, LESS, SQL, YAML and other formats when debugging or reviewing.

Unminify JS

Unminify CSS

Unminify JSON

Unminify HTML

Unminify XML

Unminify SVG

Unminify SQL

Unminify TypeScript

Unminify SCSS

Unminify LESS

Unminify TOML

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.

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.

CI/CD

GitHub Actions and GitLab CI — format YAML and check workflow/job structure in your browser.

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.

AI & LLM

Token counting, pricing estimates, and context-window fit — 100% browser-local.

Serialization

Serialize and deserialize PHP data structures beside JSON workflows.