Taplo

Free#27 of 34 in Code Formatting Tools

Taplo: A focused TOML toolkit for formatting, validation, querying, and editor support. Ranked #27 of 34 in Code Formatting Tools by our editors (6.6/10); pricing: Free plan; best for TOML configuration files.

6.6/10★★★☆☆Editor score

Visit Taplo

Taplo6.6 Visit Taplo

At a glance

• Editor score
  6.6 / 10
• Pricing
  Free plan
• Best for
  TOML configuration files
• Free plan
  Yes
• Paid from
  Free
• Supported languages
  TOML
• Facts checked
  21 Sep 2026

• Where it wins

  • Supports TOML 1.0.0 formatting and document validation
  • Adds schema completion, querying, and language-server capabilities
  • Offers Rust and JavaScript libraries for embedded TOML tooling

• Where it doesn't

  • Focused on TOML rather than multiple configuration languages
  • Does not provide AI-assisted features
  • Embedding libraries target Rust and JavaScript

Our verdict on Taplo

Taplo is an open-source toolkit for working with TOML configuration files. It is aimed at developers and teams that need consistent formatting, document validation, schema-aware completion, command-line querying, or editor support. The toolkit is available through local binaries, packages, libraries, and a Docker image, with support across Windows, macOS, Linux, and API-based use. Its TOML 1.0.0 support makes it a focused choice for projects centered on this configuration format.

Its strongest area is the breadth of TOML capabilities in one toolkit. The command-line interface supports validation, formatting, querying, conversion, and language-server features. Formatting can be configured, while include and exclude glob rules help control which files are processed. JSON Schema integration adds completion and validation for structured configuration, and the TOML language server works over standard I/O or TCP. For software teams building their own tooling, Rust and JavaScript embedding libraries extend parsing, formatting, and validation beyond command-line workflows.

Taplo should suit teams that want free, open-source TOML tooling with both developer-facing commands and reusable libraries. Editor workflows are supported through the Even Better TOML Visual Studio Code extension, while the language server can also connect through standard I/O or TCP. Its narrow TOML focus is a strength for configuration repositories built around that format, but it is less appropriate for teams seeking one formatter across several configuration languages or AI-assisted features. Choose Taplo when TOML quality, schema support, and configurable processing matter more than broad language coverage.

Your product? Our editors can test Taplo in depth and publish a review, labelled as paid · from $149/mo →

Taplo pricing

Taplo fact sheet

Alternatives to Taplo

• DdprintA broad, editor-friendly formatter for multilingual repositories and changed-file workflows.9.4
• PrettierA broad, open-source formatter for web-language teams across editors and workflows.9.2
• SSpotlessA build-focused formatter for JVM projects that need broad language coverage and automation.9.0

See all Taplo alternatives →

Featured on iTechGuides

Taplo is listed in our Code Formatting Tools directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/taplo/"><img src="https://www.itechguides.com/best/badge/taplo.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update