TOML to YAML Converter Online — Free & Private
Turn TOML into YAML using the same JSON intermediate as other FastMinify converters — indentation controls included.
Developer notes
• YAML comments must be added manually after conversion. • Use readable layout for human review; tight layout for compact diffs.
When teams pick this route
• Share TOML configs with teammates who prefer YAML. • Preview YAML equivalents before migration projects.
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 example
Package section
Sample input
Sample output
Dependencies
Sample input
Sample output
Navigate related tools
See TOML → JSON, YAML → TOML, or YAML beautifier.
TOML → YAML FAQ
Emitter options
String quoting in YAML?
Controlled via YAML string quoting options on the conversion panel.
Round-trip fidelity?
Comments and stylistic choices may differ — diff manually for critical configs.
Privacy?
All conversion runs locally in your browser.
TOML
Convert TOML to JSON, YAML, XML, CSV, Properties and 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.
YAML
Convert YAML to JSON, XML, CSV, TOML, TSV, Properties and INI — cross-target TOML via Properties → TOML and INI → TOML in alsoLinks.
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.
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
Minify
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.
SVG Tools
Preview, optimize with SVGO, export Data URI, resize, beautify, convert to JSX and validate SVG — all in your browser.
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.
SEO / Web Tools
Generate meta tags, Open Graph, and Twitter Card output locally — previews simulated from your inputs, never fetched from your live site.
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.
Barcode labels
Draw Code 128, EAN-13, and UPC-A label images in the browser — PNG and SVG download, not a GS1 lookup.