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Databases · head to head

Apache Solr vs MUI

Apache Solr logo

Apache Solr

Databases

Enterprise search platform built on Apache Lucene

From
Free
Rated
-
Full reviewWebsite
MUI logo

MUI

Web Development

React component library implementing Material Design

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Apache Solr xML-heavy configuration and a developer experience that feels dated beside newer engines; MUI escaping the Material Design look takes more theming effort than teams expect
  • They diverge on capability: Apache Solr covers Lucene-based indexing, MUI covers Large component set.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Apache Solr and MUI actually diverge.

Attributes where Apache Solr and MUI differ
AttributeApache SolrMUI
Pricing modelOpen source, no licence feeOpen-source core with paid tiers for advanced components
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb
CategoryDatabasesWeb Development

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

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 Apache Solr

  • Lucene-based indexing
  • Faceted search
  • SolrCloud
  • Schema control

Only in MUI

  • Large component set
  • Theming system
  • Accessibility
  • TypeScript support

What people use each for

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

Apache Solr

  • Library, archive and catalogue search where faceting is centralnot MUI
  • Long-lived enterprise deployments valuing stability over noveltynot MUI
  • Search requiring precise, explicitly configured relevance tuningnot MUI

MUI

  • Building an admin or internal application quickly with components that already worknot Apache Solr
  • Teams needing accessible complex widgets without building themnot Apache Solr
  • Products where Material Design is an acceptable or desired starting pointnot Apache Solr

Where each one falls short

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

Apache Solr

  • XML-heavy configuration and a developer experience that feels dated beside newer engines
  • SolrCloud depends on ZooKeeper, adding a component Elasticsearch removed years ago
  • Smaller mindshare now, so newer tutorials, hiring and integrations favour Elasticsearch
  • Considerably heavier than a purpose-built application search engine

MUI

  • Escaping the Material Design look takes more theming effort than teams expect
  • Bundle size is significant, and careless imports pull in far more than needed
  • Advanced components such as the full data grid require a paid licence
  • Major version upgrades have historically required real migration work

Pricing, plan by plan

Apache Solr

Free
  • Apache SolrFree
    • Full functionality
    • No usage limits
    • Community support

MUI

Free
  • CommunityFree
    • Core component library
    • Theming
    • Community support

Which should you pick?

Choose Apache Solr if

  • You need lucene-based indexing.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want faceted search.
Apache Solr review

Choose MUI if

  • You need large component set.
  • You want to start without paying.
  • You also want theming system.
MUI review

Questions people ask

Is Apache Solr or MUI better?
Neither clearly leads. Apache Solr starts at Free and MUI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apache Solr or MUI?
Apache Solr starts at Free and MUI at Free.
Does Apache Solr or MUI run on more platforms?
Apache Solr runs on Linux, Docker, Kubernetes, Self-hosted. MUI runs on Web.
Can I use Apache Solr for free?
Both have a free tier, so you can try either at no cost before committing.
What is Apache Solr best used for?
Apache Solr is most often used for library, archive and catalogue search where faceting is central, long-lived enterprise deployments valuing stability over novelty, search requiring precise, explicitly configured relevance tuning. Of those, library, archive and catalogue search where faceting is central and long-lived enterprise deployments valuing stability over novelty are not what MUI is typically brought in for.
What can Apache Solr do that MUI cannot?
Apache Solr covers Lucene-based indexing, Faceted search, SolrCloud, Schema control. MUI covers Large component set, Theming system, Accessibility, TypeScript support.

Answered from the vendors’ own pages

Apache Solr: Is Apache Solr free?

Yes, open source under the Apache Software Foundation.

MUI: Is MUI free?

The core library is open source and free. Advanced components, including the full-featured data grid, require a paid licence.

Apache Solr: Solr or Elasticsearch?

Both are built on Lucene. Elasticsearch has the larger ecosystem and a friendlier API; Solr is very mature and strong on faceted search, and remains common in library and catalogue systems.

MUI: Can MUI look non-Material?

Yes, through the theming system, but a substantial departure takes real work. Teams wanting full design control often prefer unstyled primitives instead.

Apache Solr: Is Solr still maintained?

Yes, actively, as a top-level Apache project.

MUI: Does MUI handle accessibility?

Components follow WAI-ARIA patterns by default, which is a large part of why teams adopt it.

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