curlylint
{{ 🎀}} Experimental HTML templates linting for Jinja, Nunjucks, Django templates, Twig, Liquid
Decision gist · record as of 2026-08-14
Yes, if you actively lint templates in one of the five supported languages and need accessibility-focused checks. The low install friction and permissive license make it easy to try. However, dormancy since 2022 means no active maintenance—use it for existing projects but verify compatibility with your template engine versions and be prepared to maintain a fork if critical issues arise.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.6 or later.
- Low install friction with six runtime dependencies.
- Maintenance is dormant—last release was 2022-03-30 and no commits since 2024-01-28—so expect no active bug fixes or feature development.
License · maintenance · safety
MIT (permissive) — MIT license is permissive; you can use, modify, and distribute this package with minimal restrictions, provided you retain the license notice.
last release 2022-03-30 (1598 days) · last repo commit 2024-01-28 · 256 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 101,315 downloads/mo, #12,947 on PyPI
Alternatives
Verify before relying
pip install curlylint
curlylint template-directory/- Whether dormant status and 1598 days since last release affect real-world usability with current template engine versions.
- Scope and maturity of accessibility checks relative to other linters in this space.
- Whether the tool handles all syntax variants of the five supported template languages equally well.
What it is and what it does
Curlylint is a command-line linter for HTML templates written in curly-brace template languages—Jinja, Nunjucks, Django templates, Twig, and Liquid. It parses template syntax and HTML structure together to detect issues that a plain HTML linter would miss. The tool focuses on accessibility checks, flagging common patterns that create barriers for users with disabilities.
The package is built on parsy for parsing, attrs for data structures, click for CLI, and toml for configuration files. It started as a fork of jinjalint and is classified as Alpha software. While the project is dormant (no releases since March 2022), it remains archived-free on GitHub and has no known security vulnerabilities.
Use it for
- Lint Django template files in a CI/CD pipeline to catch accessibility violations before deployment.
- Check Jinja templates in a static site generator or Flask application for common HTML issues.
- Validate Nunjucks or Twig templates in a web project to enforce accessibility standards.
- Integrate template linting into a pre-commit hook to catch issues during development.
- Audit existing template codebases for accessibility problems across multiple template languages.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you actively lint templates in one of the five supported languages and need accessibility-focused checks.
The low install friction and permissive license make it easy to try. However, dormancy since 2022 means no active maintenance—use it for existing projects but verify compatibility with your template engine versions and be prepared to maintain a fork if critical issues arise.
Install
curlylint on PyPI
Before you install
Low install friction with six runtime dependencies. Maintenance is dormant—last release was 2022-03-30 and no commits since 2024-01-28—so expect no active bug fixes or feature development.
Requires Python 3.6 or later.
License in practice
MIT license is permissive; you can use, modify, and distribute this package with minimal restrictions, provided you retain the license notice.
Quickstart
pip install curlylint
curlylint template-directory/Verify before relying
- Whether dormant status and 1598 days since last release affect real-world usability with current template engine versions.
- Scope and maturity of accessibility checks relative to other linters in this space.
- Whether the tool handles all syntax variants of the five supported template languages equally well.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.6 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 6 packagesparsyattrsclicktomlpathspecdataclasses |
| Maintenance | Dormant 1,598 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 101,315 / month, #12,947 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 3 - AlphaEnvironment :: ConsoleIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseProgramming Language :: Python :: 3Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Topic :: Software Development :: Quality AssuranceTyping :: Typed |
Evidence: curlylint-0.13.1-py3-none-any.whl
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