Beautify Markdown Online — Free MD Formatter

Beautify Markdown docs and README files instantly with Prettier — no uploads.

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Markdown Beautification
Beautify Markdown online. Consistent indentation and spacing — instant browser processing, no uploads.

Features

Consistent heading and list spacing.

Beautify Markdown

Consistent heading and list spacing.

Basic example

Markdown source

# Release notes - Ship minify triplet URLs - Add TOML + SQL formatters ```bash npm run build && npm test ``` > FastMinify keeps processing local — no uploads.

Beautified Markdown

# Release notes - Ship minify triplet URLs - Add TOML + SQL formatters ```bash npm run build && npm test ``` > FastMinify keeps processing local — no uploads.

Formatting options

Print width
Controls when Prettier wraps long lines — tighter for dense queries, wider for nested SDL.

JavaScript-specific options (semi, quotes, trailing comma) do not apply to this language.

Prettier-powered formatting

Comment handling follows Prettier defaults. Need JSON? Try the JSON formatter.

Local processing & data handling

Your Markdown is parsed and reformatted in-browser with Prettier. No uploads, no server-side storage, and no account required — suitable for proprietary schemas, queries, and internal docs.

FAQ — Beautify Markdown

Beautification

Are HTML blocks reformatted?

Embedded HTML follows Prettier Markdown rules — preview if unsure.

Can I minify Markdown?

Minify is not offered — use beautify for readable docs.

Is my Markdown uploaded to a server?

No. Beautification runs entirely in your browser — your Markdown never leaves your device and is not stored by FastMinify.

Can I customize indentation?

Yes — pick 2 or 4 spaces or tabs in the Beautify options toolbar.

Beautify

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

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.

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.