toml-sort
Toml sorting library
Decision gist · record as of 2026-08-14
Yes. The package is actively maintained, has no known vulnerabilities, installs with minimal friction, and solves a real problem for projects using TOML configuration files. It is useful both as a CLI tool for ad-hoc formatting and as part of automated workflows. The permissive MIT license poses no barrier.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or later.
- Low friction install with a single runtime dependency (tomlkit).
- Active maintenance with recent releases and no known vulnerabilities.
License · maintenance · safety
MIT (permissive) — MIT license permits free use, modification, and distribution with minimal restrictions.
last release 2026-03-24 (143 days) · last repo commit 2026-03-30 · 116 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 723,427 downloads/mo, #5,226 on PyPI
Alternatives
Verify before relying
pip install toml-sort
# Command line
toml-sort input.toml -o output.toml
# Or in-place
toml-sort --in-place input.toml
# Check without modifying
toml-sort --check input.toml- Whether the library API (as opposed to CLI) is documented and stable for programmatic use.
- Performance characteristics on large TOML files or deeply nested structures.
What it is and what it does
toml-sort is a command-line utility and Python library for sorting and formatting TOML configuration files. It sorts tables and arrays of tables, optionally sorts keys within tables, and preserves comments and whitespace structure where possible. The tool can be used as a standalone CLI tool, integrated into build workflows for linting, or called as a Python library from other code.
The package handles four types of comments (header, footer, inline, and block) with fine-grained control over which to preserve or strip. It supports configuration via pyproject.toml with per-key overrides using glob-style wildcards, making it suitable for projects that want consistent TOML formatting across multiple files or as part of a CI/CD pipeline.
Use it for
- Normalize and sort TOML files in a project as part of pre-commit hooks or CI linting.
- Automatically organize pyproject.toml or other config files to a consistent structure.
- Batch-format multiple TOML files with consistent rules via CLI or programmatic API.
- Check whether TOML files conform to a sorted format without modifying them.
- Configure per-section sort rules for complex TOML structures using overrides.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is actively maintained, has no known vulnerabilities, installs with minimal friction, and solves a real problem for projects using TOML configuration files. It is useful both as a CLI tool for ad-hoc formatting and as part of automated workflows. The permissive MIT license poses no barrier.
Install
toml-sort on PyPI
Before you install
Low friction install with a single runtime dependency (tomlkit). Active maintenance with recent releases and no known vulnerabilities.
Requires Python 3.9 or later.
License in practice
MIT license permits free use, modification, and distribution with minimal restrictions.
Quickstart
pip install toml-sort
# Command line
toml-sort input.toml -o output.toml
# Or in-place
toml-sort --in-place input.toml
# Check without modifying
toml-sort --check input.tomlVerify before relying
- Whether the library API (as opposed to CLI) is documented and stable for programmatic use.
- Performance characteristics on large TOML files or deeply nested structures.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagetomlkit |
| Maintenance | Actively maintained 143 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 723,427 / month, #5,226 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaEnvironment :: ConsoleLicense :: OSI Approved :: MIT LicenseProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.9Topic :: Software Development :: Code GeneratorsTopic :: UtilitiesTyping :: Typed |
Evidence: toml_sort-0.24.4-py3-none-any.whl
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See also sort-lines · toml · tox-toml-fmt · tomlkit · rtoml · tomlrt · pyproject-fmt · tomli-w · natsort · toml-cli