Igorkasyanchuk

Do it like => validates :photos, attached: true, content_type: ['image/png', 'image/jpg', 'image/jpeg'], size: { less_than: 500.kilobytes }, limit: { min: 1, max: 3 }, aspect_ratio: :landscape, dimension: { width: { in: 800..1600 }

Rails logs analyzer (see how fast your views are rendering)

Rails Database Viewer and SQL Query Runner

A reliable way to generate PDF of any complexity in Ruby on Rails apps

Monitor performance of you Rails applications (self-hosted and free)