Attach cloud and local files in Rails applications.

Upload files in your Ruby applications, map them to a range of ORMs, store them on different backends.

Shrine is a toolkit for file attachments in Ruby applications. It supports uploading, downloading, processing and deleting IO objects, backed by various storage engines. It uses efficient streaming for low memory usage. Shrine comes with a high-level interface for attaching uploaded files to database records, saving their location and metadata to a database column, and tying them to record's lifecycle. It natively supports background jobs and direct uploads for fully asynchronous user experience.

xlsx spreadsheet generation with charts, images, automated column width, customizable styles and full schema validation. Axlsx helps you create beautiful Office Open XML Spreadsheet documents (Excel, Google Spreadsheets, Numbers, LibreOffice) without having to understand the entire ECMA specification. Check out the README for some examples of how easy it is. Best of all, you can validate your xlsx file before serialization so you know for sure that anything generated is going to load on your client's machine.

Validations for Active Storage (presence)

A delightful Ruby way to work with AI. Tired of juggling different SDKs? RubyLLM provides one beautiful, Ruby-like interface for OpenAI, Anthropic, Gemini, Bedrock, OpenRouter, DeepSeek, Ollama, and any OpenAI-compatible API. Chat (with text, images, audio, PDFs), generate images, create embeddings, use tools (function calling), stream responses, and integrate with Rails effortlessly. Minimal dependencies, maximum developer happiness - just clean Ruby code that works.

Easy upload management for ActiveRecord

Lookbook is a UI development environment for Ruby on Rails applications

This gem can be useful, if you need to upload files to your API from mobile devises.

Fetch, Upload, Organize, and Distribute Software Packages

Adds file validators to ActiveModel

Fetch, Upload, Organize, and Distribute Software Packages

Fetch, Upload, Organize, and Distribute Software Packages

Fetch, Upload, Organize, and Distribute Software Packages

Fetch, Upload, Organize, and Distribute Software Packages

Fetch, Upload, Organize, and Distribute Software Packages

Fetch, Upload, Organize, and Distribute Software Packages

Fetch, Upload, Organize, and Distribute Software Packages

Ruby Library for the Onfido API

Goodcheck is a regexp based linter that allows you to define custom rules in a YAML file.