YAML to CSV Converter Online — Free & Private

Flatten YAML that unwraps to JSON arrays/objects into spreadsheet rows with the same dotted-column rules as JSON → CSV.

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YAML → CSV — readable configs to analyst grids
Great when observability YAML unwraps into uniform row shapes.

Developer notes

• If YAML parses to scalars, CSV export may be empty — reshape into tables. • Nested maps flatten with dotted headers like JSON exports.

When teams pick this route

• FinOps translating YAML price sheets into Sheets. • SRE snapshots needing spreadsheet filters.

About these options

CSV exports: choose a delimiter (Auto follows locale — semicolon on /fr), RFC-minimal vs always-quoted fields, line endings, and whether to emit a header row. CSV imports: delimiter is auto-detected from the first line (comma, semicolon, tab, or pipe) — toggle whether row 1 holds column names. JSON output (XML, YAML, or CSV sources): indentation (including compact one-line) and optional recursive key sort. JSON → XML: toggle pretty-printing and indent width. YAML output: indent width, readable vs tighter layout, and deterministic string quoting (there is no source YAML file to “preserve”). XML comments are not represented in the intermediate JSON tree.

Worked examples

Uniform list

Sample input

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

Sample output

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

Wrapper unwrap

Sample input

service: name: billing-gateway port: 8443 tls: enabled: true minVersion: "1.2" endpoints: - /health - /metrics - /ready

Sample output

name,port,endpoints,tls.enabled,tls.minVersion billing-gateway,8443,"/health, /metrics, /ready",true,1.2

Navigate related converters

Stay tabular with JSON → CSV, inspect trees via YAML → JSON, or export XML using YAML → XML.

YAML → CSV FAQ

Flattening caveats

Mixed-type columns?

Everything becomes strings in CSV cells — cast downstream.

European delimiters?

Use Auto on /fr routes or pick semicolon explicitly.

Comments in YAML?

Comments vanish after JSON intermediate — capture them elsewhere.

Quoted commas inside cells?

Exporter handles RFC-style quoting per options.

YAML

Convert YAML to JSON, XML, CSV, TOML, TSV, Properties and INI — cross-target TOML via Properties → TOML and INI → TOML in alsoLinks.

YAML → JSON

YAML → XML

YAML → TOML

YAML → TSV

YAML → Properties

YAML → INI

Other converter families

HTML

Convert HTML to JSON, XML, YAML and Markdown.

JSON

Convert JSON to YAML, XML, CSV, TOML, TSV, SQL, HTML, Properties and INI — all in your browser.

XML

Convert XML to YAML, CSV, JSON, TOML, TSV and HTML.

CSV

Convert CSV to JSON, XML, YAML, TOML and TSV.

TSV

Convert tab-separated values to JSON and CSV.

SQL

Parse INSERT statements to JSON and CSV.

Markdown

Convert Markdown to HTML locally.

TOML

Convert TOML to JSON, YAML, XML, CSV, Properties and INI.

Properties

Convert Java .properties files to JSON, YAML, INI and TOML.

INI

Convert INI configs to JSON, YAML, Properties (flat INI only) and TOML.

Explore other tool categories

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Shrink code and assets for production — minify JavaScript, CSS, HTML, JSON and XML before gzip or CDN deploy.

Unminify

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

Encoding

Encode or decode Base64, URL components and HTML entities — client-side only.

Serialization

Serialize and deserialize PHP data structures beside JSON workflows.

JSON Tools

Validate, format, diff and explore JSON payloads — complementary to minifiers and converters.

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Beautify

Make code readable with consistent indentation — beautify JavaScript, CSS, TypeScript, SCSS, LESS, Markdown, GraphQL, SQL, YAML and more in your browser.

CSS preprocessors

Compile SCSS or LESS to standard CSS in the browser — pair with beautify or minify for a full stylesheet workflow.

Color & CSS Tools

Paste-local WCAG contrast checking with modern CSS color syntax — pair and matrix views, never uploaded.

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.

HTTP Tools

Paste-local cURL, HTTP messages, URLs, HAR files, and Cookie / Set-Cookie headers — format and inspect in your browser, never sent.

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.

Test Data

Synthetic field values for fixtures and DB seed — reserved-range phone numbers first.