slim-template/slim

Health v2 · maintenance only

Adoption not part of the score

5373 stars · 497 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Slim is a fast, lightweight Ruby templating language that reduces HTML view syntax to the essentials using indentation instead of closing tags. It integrates with Rails, Sinatra, and Rack via Tilt and is extensible through plugins like logic-less mode and I18n translation.

Use cases

• write HTML views with minimal syntax in Rails
• replace ERB or Haml templates with a cleaner indentation-based language
• render templates in Sinatra or plain Rack apps
• use logic-less Mustache-style templates with Slim syntax
• embed Markdown or Textile inside HTML templates
• stream template rendering in Rails for performance

When to choose

• you want terse, elegant HTML templates without closing tags
• you need a high-performance Ruby template engine comparable to ERB
• you want automatic HTML escaping and Rails html_safe support
• you prefer indentation-based markup like Haml or Pug

When to avoid

• your team prefers standard HTML syntax with explicit tags
• you need a templating language outside the Ruby ecosystem
• you rely on tooling or editors without Slim support

Facets

library · maturity stable

templating web-framework web-development frontend developer-tools ruby template-engine html haml-alternative rails sinatra indentation-based-syntax web-server

Member repositories

For agents

markdown · JSON · MCP: product_card(name="slim-template/slim")