YAML and TOML power configuration files for virtually every modern tool — CI/CD, Docker Compose, Helm charts, Cargo, and more. Getting the syntax right and converting between formats is a constant need.
What Is the TOML Formatter?
TOML Formatter is one of the tools in WebdevToolbox’s YAML & Config Tools category. Format, validate, and minify TOML configuration files. It runs entirely in your browser — no server uploads, no accounts, no waiting.
How to Use It
- Open the tool at /tools/toml-formatter.
- Paste or type your input in the provided field.
- The result updates in real time — no button press needed.
- Use the Copy button to copy the output to your clipboard.
Key Features
- 100% client-side — all processing happens in your browser. Nothing is sent to a server.
- Real-time output — results update as you type, with no submit button required.
- One-click copy — copy the output to your clipboard with a single button press.
- PWA-ready — works offline when installed as a Progressive Web App.
When to Use the TOML Formatter
- CI/CD config — validate a GitHub Actions or GitLab CI YAML file before pushing it.
- Config conversion — convert a JSON config to YAML for a tool that only accepts YAML.
- TOML migration — convert Cargo.toml or pyproject.toml between formats as needed.
Try It Now
Open TOML Formatter directly from anywhere on the site using ⌘K and typing the tool name. No login required — everything runs offline-capable in your browser.
Part of the YAML & Config Tools collection on WebdevToolbox — free, browser-based developer tools with no login required.