Solidus

Robust, community-driven open-source Ruby on Rails e-commerce framework.

Best for: Ruby on Rails engineering teams building highly customized, scalable commerce backends

Free plan

4.6/5Editorial score 89/100solidus.io

Starts at

Free Forever (BSD-3)

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Editorial score89/100

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The editorial note

What to know about Solidus

Solidus is a battle-tested, open-source e-commerce framework built on Ruby on Rails. Evolved from Spree, Solidus is engineered for brands with complex business logic, custom checkout rules, and bespoke back-office integrations, powering large-scale multi-million dollar direct-to-consumer and B2B online operations.

Is it right for you?

Who Solidus suits

Choose it if

Ruby on Rails engineering teams building highly customized, scalable commerce backends

Look elsewhere if

Non-technical entrepreneurs seeking a plug-and-play e-commerce website with no coding

What you get

Key features

Modular Ruby on Rails core architecture
Comprehensive admin dashboard for order and customer management
Highly flexible promotions, pricing, and discount rules engine
Multi-store and multi-currency out of the box
REST and GraphQL API extensions for headless storefronts
Deep integration with enterprise ERP and WMS systems

Works with

Integrations5

Ruby on RailsStripeBraintreeAvalara TaxPostgreSQL

What it costs

Pricing

Solidus pricing plans
Plan	Price	What it includes
Open Source	Free Forever (BSD-3)Billed one-time	100% free open-source framework, unlimited products, unlimited transactions, zero revenue share

Prices are recorded from the vendor's public pricing page and can change. Check before you buy.

The trade-off

Pros and cons

Pros

Total architectural freedom: customize checkout flows, promotions, and data models completely
Rock-solid stability maintained by an active, professional open-source community
Extensive ecosystem of Rails extensions for payment gateways, tax calculation, and 3PL fulfillment

Cons

Requires experienced Ruby on Rails developers to build, maintain, and host
Initial setup and storefront development takes significantly longer than hosted SaaS

Quick read

At a glance

Category: E-commerce
Pricing model: Free
Entry plan: Free Forever (BSD-3)
Free plan: Available
Free trial: Not listed
Website: solidus.io

The verdict

Our take on Solidus

Solidus is the gold standard for Ruby on Rails e-commerce, offering boundless customization and zero revenue tax for serious digital brands.

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