PROPERTIES to TOML Converter Online — Free & Private

Move Java .properties into TOML for Cargo.toml or pyproject.toml — flat dotted keys at the root, all processing stays in your browser.

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PROPERTIES → TOML — flat root keys
Move Java .properties into TOML for Cargo.toml or pyproject.toml previews — dotted keys stay flat at the root.

Developer notes

• Keys like server.port become server.port = at the TOML root — not nested [server] tables. • Toggle Sort TOML keys for deterministic alphabetical ordering. • Values remain strings unless you reshape upstream. • For nested TOML tables, migrate through YAML/JSON first.

Conversion options

Sort TOML keys
Alphabetically sort top-level TOML keys for stable, diff-friendly output.

Use cases

• Spring teams exploring Rust/Python TOML configs from legacy .properties. • Quick Cargo.toml or pyproject.toml drafts from Java exports. • Local previews before automation scripts.

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 + whether row 1 holds column names (Auto delimiter follows locale only for convenience). 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.

Examples

Canonical keys for Sort TOML keys

Input

zebra=z alpha=a mango=m beta=b gamma=g delta=d epsilon=e zeta=z2

Output

zebra = "z" alpha = "a" mango = "m"

Spring-style service keys

Input

app.name=FastMinify app.env=production server.port=8080

Output

app.name = "FastMinify" app.env = "production" server.port = "8080"

Related tools

Need YAML instead? Try Properties → YAML. Sectioned configs from INI? Use INI → TOML.

PROPERTIES → TOML FAQ

Flat dotted keys

Why no nested [server] tables from dots?

We preserve Java flat dotted keys at the TOML root — same rule as Properties → YAML.

What does Sort TOML keys do?

Reorders top-level TOML keys alphabetically for diff-friendly output — try the zebra/alpha/mango sample.

Can lists be converted?

No — .properties values are strings; arrays are out of scope for this path.

Privacy?

All parsing stays in your browser.

Properties

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

Properties → JSON

Properties → YAML

Properties → INI

Other converter families

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.

TOML

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

TSV

Convert tab-separated values to JSON and CSV.

SQL

Parse INSERT statements to JSON and CSV.

HTML

Convert HTML to JSON, XML, YAML and Markdown.

Markdown

Convert Markdown to HTML locally.

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.

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.

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.

Serialization

Serialize and deserialize PHP data structures beside JSON workflows.