Minify TOML Online — Free TOML Compressor

Minify TOML configs instantly — Cargo.toml, pyproject.toml and DevOps files. Choose comment preservation or parse-based tight output.

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TOML Minification
Minify TOML online.

Features

Compress Cargo.toml and pyproject.toml with optional comment handling.

Minify TOML

Compress Cargo.toml and pyproject.toml with optional comment handling.

Basic example

Input TOML

# FastMinify library manifest [package] name = "fastminify" version = "2.1.0" edition = "2021" authors = ["FastMinify Team"] [dependencies] serde = { version = "1.0", features = ["derive"] } tokio = "1.35" [features] default = ["cli"] cli = []

Minified TOML

[package] name="fastminify" version="2.1.0" edition="2021" authors=[ "FastMinify Team" ] [dependencies] tokio="1.35" [dependencies.serde] version="1.0" features=[ "derive" ] [features] default=[ "cli" ] cli=[]

Options

Remove Comments
When true, parse+stringify drops # comment lines. When false, whitespace-only minify may preserve comments.

Parse path drops comments; whitespace path may keep them

Sort Keys
Sort object keys alphabetically when parsing and rewriting TOML.

TOML conversion helpers

Use JSON → TOML, TOML → JSON, YAML → TOML or TOML → YAML for format conversion.

FAQ — Minify TOML

Minification

Are # comments preserved?

Only when removeComments is false on whitespace paths. Parse-based minify removes them.

Beautify TOML?

See TOML beautifier — comments cannot survive parse.

Cargo.toml support?

Standard TOML tables and arrays are supported — paste one manifest at a time.

Verify it yourself

FastMinify processes your input in the browser. Inspect the network panel or read our validation gate to confirm nothing leaves your device.

Minify

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

Explore other tool categories

Beautify

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

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.