rails/bootsnap

Health v2 · maintenance only

Adoption not part of the score

2740 stars · 208 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Bootsnap is a Ruby gem that optimizes and caches expensive boot-time computations such as LOAD_PATH resolution and Ruby/YAML/JSON compilation. It plugs into Ruby applications, especially Rails apps, to significantly reduce startup time.

Use cases

• speed up rails app boot time
• reduce ruby application startup time
• cache ruby iseq compilation
• optimize bundler load path lookups
• cache yaml parsing in ruby apps
• make large monolith boot faster

When to choose

• you run a large Ruby or Rails application with slow boot times
• you deploy to macOS or Linux and can write to a cache directory
• you want a drop-in performance win with minimal code changes

When to avoid

• you run on Windows or other unsupported platforms
• your deployment environment is read-only and cannot mount a writable cache dir
• you rely on code coverage reporting that breaks with iseq caching
• you cannot manage periodic cache purging and deploys would degrade

Facets

library · maturity stable

caching developer-tools performance web-development developer-tools ruby ruby-gem boot-time rails load-path-cache compile-cache macos linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="rails/bootsnap")