Softwr

Libraries · head to head

Base UI vs Evergreen ILS

Base UI logo

Base UI

Libraries

Unstyled accessible React primitives built by the teams behind Radix, Material UI and Floating UI

From
Free
Rated
-
Full reviewWebsite
Evergreen ILS logo

Evergreen ILS

Libraries

Highly scalable open source library software

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Base UI nothing is styled, so the first weeks produce a functional but unfinished interface, and a team without design capacity will ship something worse looking than a styled library would have given them free.; Evergreen ILS server installation is supported only on Debian 10, 11, 12 and 13 and Ubuntu 22.04 and 24.04
  • They diverge on capability: Base UI covers Unstyled primitives, Evergreen ILS covers Circulation management.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Base UI and Evergreen ILS actually diverge.

Attributes where Base UI and Evergreen ILS differ
AttributeBase UIEvergreen ILS
Pricing modelOpen source, no licence feeopen-source
PlatformsWebWeb, Desktop, Api
FoundedUnknown2006

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Libraries).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Base UI

  • Unstyled primitives
  • Focus and keyboard management
  • ARIA state handling
  • Collision aware positioning
  • Composable parts
  • Server rendering safe

Only in Evergreen ILS

  • Circulation management
  • MARC cataloging
  • Acquisitions
  • Serials management
  • OPAC with faceted search
  • Patron management
  • Offline circulation
  • Consortia support

What people use each for

The jobs each tool is most often brought in to do.

Base UI

  • Building a design system where the visual language must be entirely your ownnot Evergreen ILS
  • Applications with an accessibility conformance obligation that need correct behaviour as the foundationnot Evergreen ILS
  • Replacing a styled component library that is being fought rather than usednot Evergreen ILS
  • Teams already writing Tailwind who want behaviour without a second opinion about appearancenot Evergreen ILS

Evergreen ILS

  • Running a consortium-scale library catalogue and circulation systemnot Base UI
  • Self-hosting an open source integrated library system across multiple branchesnot Base UI

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Base UI

  • Nothing is styled, so the first weeks produce a functional but unfinished interface, and a team without design capacity will ship something worse looking than a styled library would have given them free.
  • The project is young and its APIs have changed between releases, so upgrades need reading rather than accepting, and version pinning is currently a necessity.
  • Component coverage is narrower than the mature styled libraries, so date pickers, tables and rich inputs will still come from elsewhere or be built.
  • There is no commercial support and no conformance certification to point at, so an organisation that must evidence accessibility still has to commission its own audit.
  • Consolidating the Radix and Material UI unstyled efforts here leaves the earlier libraries with an uncertain maintenance future, which is a live risk for the many applications built on Radix through shadcn/ui.

Evergreen ILS

  • Server installation is supported only on Debian 10, 11, 12 and 13 and Ubuntu 22.04 and 24.04
  • PostgreSQL 14 is the minimum supported version
  • OpenSRF 3.3.0 or later must be installed separately before Evergreen itself
  • Installation is a manual multi-service process requiring a dedicated PostgreSQL superuser account and shell access

Pricing, plan by plan

Base UI

Free
  • Base UI$undefined/year
    • MIT licensed and free for commercial use
    • No paid tier, no enterprise edition and no support contract available

Evergreen ILS

Free
  • Self-HostedFree
    • Full ILS functionality
    • Circulation system
    • OPAC
  • Hosted (via partners)$200/month
    • Everything in Self-Hosted
    • Managed hosting
    • Professional support

Which should you pick?

Choose Base UI if

  • You need unstyled primitives.
  • You want to start without paying.
  • You also want focus and keyboard management.
Base UI review

Choose Evergreen ILS if

  • You need circulation management.
  • You want to start without paying.
  • You work on Web, Desktop, Api.
  • You also want marc cataloging.
Evergreen ILS review

Questions people ask

Is Base UI or Evergreen ILS better?
Neither clearly leads. Base UI starts at Free and Evergreen ILS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Base UI or Evergreen ILS?
Base UI starts at Free and Evergreen ILS at Free.
Does Base UI or Evergreen ILS run on more platforms?
Base UI runs on Web. Evergreen ILS runs on Web, Desktop, Api.
Can I use Base UI for free?
Both have a free tier, so you can try either at no cost before committing.
What is Base UI best used for?
Base UI is most often used for building a design system where the visual language must be entirely your own, applications with an accessibility conformance obligation that need correct behaviour as the foundation, replacing a styled component library that is being fought rather than used, teams already writing tailwind who want behaviour without a second opinion about appearance. Of those, building a design system where the visual language must be entirely your own and applications with an accessibility conformance obligation that need correct behaviour as the foundation are not what Evergreen ILS is typically brought in for.
What can Base UI do that Evergreen ILS cannot?
Base UI covers Unstyled primitives, Focus and keyboard management, ARIA state handling, Collision aware positioning. Evergreen ILS covers Circulation management, MARC cataloging, Acquisitions, Serials management.

Answered from the vendors’ own pages

Base UI: Does this replace Radix UI?

It is where much of the same maintenance attention has moved. If you are on Radix, watch its release activity rather than assuming continuity.

Evergreen ILS: Is Evergreen ILS free?

Yes, Evergreen ILS is a free open source library management system. The software is available at no cost for libraries and organizations to install, deploy, and customize according to their needs.

Source
Base UI: What does it affect for shadcn/ui users?

shadcn/ui components are built on Radix primitives, so the health of Radix is your dependency question, not a theoretical one.

Evergreen ILS: Does Evergreen ILS offer commercial support or hosting?

Evergreen ILS website does not list commercial hosting or support services. As an open source project, it relies on community contributions and institutional deployments. Libraries may arrange custom support through integrators or consultants, but no official commercial offerings are detailed on the website.

Source
Base UI: Is it ready for production?

For the components it covers, yes, provided you pin versions and read release notes. The range is narrower than mature libraries, so check coverage against your needs first.

Share

Related pages

More on Base UI

More on Evergreen ILS

Keep looking

Other head to heads