Beautify TypeScript Online — Free TS Formatter

Beautify TypeScript instantly with Prettier. All processing happens in your browser — no uploads.

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

Features

Format TS with configurable print width and quote style.

Beautify TypeScript

Format TS with configurable print width and quote style.

Basic example

TypeScript source

interface User{id:number;name:string}async function fetchUsers<T extends User>(ids:number[]):Promise<T[]>{const res=await fetch(`/api/users?ids=${ids.join(",")}`);return res.ok?(await res.json())?.data??[]:[]}

Beautified TypeScript

interface User { id: number; name: string; } async function fetchUsers<T extends User>(ids: number[]): Promise<T[]> { const res = await fetch(`/api/users?ids=${ids.join(',')}`); return res.ok ? ((await res.json())?.data ?? []) : []; }

Formatting options

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

Adjust tab width, tabs vs spaces, and quote style in the toolbar.

Prettier-powered formatting

Uses Prettier with the TypeScript parser. For JavaScript minification see our JS minifier or JS beautifier.

Local processing & data handling

Your TypeScript 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 TypeScript

Beautification

TypeScript vs JavaScript?

This tool expects TypeScript syntax. For plain JS use the JS beautifier.

Need to unminify?

Try the TypeScript unminifier — same Prettier engine.

Is data uploaded?

No — formatting runs entirely in your browser.

Beautify vs unminify — which should I use?

Beautify formats readable TypeScript; unminify restores compressed output — try the TypeScript unminifier. For day-to-day formatting, stay on TypeScript beautifier.

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.