Omeka is an open source content management application.

1 click installation Omeka

1 click installation

Easy update Omeka

Easy update

Backup and restoration Omeka

Backup and restoration


Content Management
Current version
Last update
13 June 2016

System Requirements

Installation size
80 MB
open source
What's new


13 June - 80MBBugs Fixed
  • Drag and drop sorting failed for longer lists
  • The "linkText" option was ignored for the file markup renderer's default link-only display. (#690)
  • Labels weren't properly associated with sitewide search record type checkboxes when unchecked (#698)
  • The show page for Collections had the title "Edit Collection"
  • A Javascript error could sometimes occur when refreshing an item edit page

  • SSL/HTTPS detection is now more reliable (#685)
  • The default extension and mimetype whitelists are expanded to cover the newly-supported filetypes from the 2.4 release (#683)
  • Fewer characters will be entity-encoded in HTML values when HTMLPurifier is disabled

  • New translation for Belarusian (be_BY)
  • Updates to many existing translations

External Libraries
  • Omeka 2.4.1 reverts to the following versions of its external dependencies: jQuery UI 1.11.2

Bundled Plugins
  • Exhibit Builder 3.3.1

  • Pasi Kallinen (#698)
  • Sarah Weissman (#690)

Read more:


(major version)
30 March - 80MBAudio and Video Support Changes
  • To keep up with the changing browser support landscape, Omeka now uses HTML 5's audio and video tags when embedding audio and video, instead of the object and embed tags used by previous versions. This change means generally better support for newer formats on current desktop and mobile browsers (for example, fixing a bug where audio files would improperly auto-play on Chrome), but worse support for older video formats, particularly those that rely on browser plugins like Quicktime, Windows Media Player or VLC. Site visitors will still be able to download those older videos and view them locally, provided they have a video player installed that's capable of playing them.
  • Added embedded audio support for .m4a and .opus
  • Added embedded video support for .m4v and .webm
  • Removed embedded audio support for .mid, .midi, .kar, .rmi and .wma
  • Removed embedded video support for .avi, .mpeg, .mpg, .mpe, .m1v, .m2v, .qt, and .wmv
  • For more information about HTML 5 media support in Omeka, see Media Files.

Bugs Fixed
  • Installation could fail on servers running newer versions of MySQL (5.7+) (#678)
  • Counting tags could become extremely slow on installations with many tags and tagged records (#674)
  • New version detection could sometimes throw an uncaught exception when failing to connect
  • Items would not filter correctly using an Item Type object
  • Some old "cellspacing" and "cellpadding" attributes were used instead of their CSS counterparts
  • An exception within the Navigation component was not properly thrown, leading to an error
  • The default files/show view had a mismatched closing div tag

  • Pluralized strings are now supported
  • New translation for Mongolian (mn)
  • Updates to many existing translations

External Libraries
  • Updated: Zend Framework 1.12.17
  • Updated: getID3 1.9.11
  • Updated: HTML Purifier 4.7.0
  • Updated: jQuery 1.12.0
  • Updated: jQuery UI 1.11.4

Exhibit Builder 3.3
  • Users can now manually select a "cover image" to serve as the thumbnail for an Exhibit
  • Added a new File-only block layout that allows files to be centered on the page
  • Fixed problems with dialog box placement
  • Fixed an issue with API Import
  • Improves compatibility with MySQL 5.7+
  • Updated translations

Simple Pages 3.0.7
  • Improved compatibility with MySQL 5.7+
  • Updated translations

  • Thanks, Roy 2.3.2
  • Seasons 2.3.1
  • Berlin 2.3.1

For Developers
  • For change information geared toward developers, see What's New in Omeka 2.4 on Omeka's Read the Docs site.

  • Julian Maurice (#665)
  • Daniel Berthereau (#680)
  • Will Simpson and Ginger Bidwell (Exhibit Builder #80)

Read more:


2 September 2015 - 80MBEnhancements
  • It is now possible to view tags assigned to zero records in the admin interface for tags
  • The item shortcodes now allow filtering by item type (#668).
  • Invalid strings are now handled more gracefully when using PHP 5.4 or newer
  • The full set of available filters for Items are now available for use in the API
  • The ExternalImageMagick and Imagick file derivative strategies now have a autoOrient option to automatically fix the orientation of images that have an embedded orientation flag.

Bugs Fixed
  • An error occurred when adding tags differing only in trailing spaces
  • Sessions containing invalid UTF-8 text data could be dropped or truncated
  • Invalid element text records could cause nonsensical API output
  • Element texts could be duplicated if a record was saved more than once in a single request
  • The linkToMetadata option for file_markup could cause a PHP notice
  • The Imagick derivative strategy handled images with layers and transparency improperly
  • The Mixin_ElementText::getAllElementTextsByElement function introduced in 2.3 did not work correctly (#662, fix contributed by Daniel Berthereau)
  • There was a typo in the admin interface (#664, fix contributed by Zach Ploskey)

  • PHP's error reporting level is now set the same regardless of the "environment" setting

  • New translation for Latvian (lv_LV)
  • Updates for Czech (cs), Estonian (et), Italian (it), Dutch (nl_NL), Polish (pl), Swedish (sv_SE), and Turkish (tr_TR).

Bundled Add-ons: Themes
  • Thanks, Roy 2.3.1 (fixed a problem with site logos not showing correctly on item pages)

Bundled Add-ons: Plugins
  • Exhibit Builder 3.2.1 (fixed a problem that sometimes prevented exhibits from being deleted, updated translations)
  • Simple Pages 3.0.6 (updated translations)

Read more:


(major version)
10 April 2015 - 80MBThis release includes improved accessibility, with better labels, skip navigation links, and the addition of ARIA roles and landmarks . We have also added the ability to use PHP’s GD extension for creating file derivatives when uploading. This is in addition to the options to use either PHP’s Imagick extension, or the default external imagemagick. This should allow easier setup on some servers. Read more about configuring thumbnail creation here. Another change is that the drop-down menu in advanced search for “narrow by specific field” now sorts the fields in the same order that you have arranged them, rather than sorting alphabetically, making it easier to find the fields you use most when searching.

There are a large number of bug fixes for this release, including issues with assigning tags, some tags being treated as case-sensitive, fixes to some upgrade errors, resolving an issue with multiple text inputs and advanced search, display of item search filters, theme overrides on plugin views, over-escaping on certain attributes and page titles, and errors which could cause index records to fail.

  • Accessibility improvements (added ARIA roles and landmarks, improved labels, navigation skip links)
  • New file derivative strategy using PHP's GD extension
  • Built-in support for setting default sort orders for browse pages
  • Element dropdowns on item advanced search respect the admin-configured element sorting order (#643)
  • The admin-configured page limits for browse pages are used for more controllers, including plugins
  • The listing of items on collection pages now follows the admin page limits (#601)
  • Support for the new access control directives used by Apache 2.4 (#631)
  • URLs within the default citation output now include a span wrapper to allow specific styling
  • New interface for resetting customized navigation to default settings
  • Improved error output for exceptions
  • Detailed error messages are now always shown for exceptions during upgrade
  • Support for newer versions (4.2+) of PHPUnit
  • The API now accepts sort_field and sort_dir GET parameters for sorting results
  • Omeka will hide the "Path to ImageMagick" setting when an alternative derivative strategy is in use
  • The System Information panel now uses internal "folder" names for both themes and plugins
  • Improved translation coverage (#655, #659)

Bugs Fixed
  • Tags were incorrectly treated as case-sensitive in some places
  • Assigning tags to records caused an SQL error for some newer MySQL servers
  • The item advanced search "does not contain" worked incorrectly with elements having multiple texts
  • API authentication did not work properly on installations with no database prefix
  • browse_sort_links for "bare" links handled attributes incorrectly (#648)
  • Setting a custom homepage including a query string would silently set that query on all pages
  • Upgrades could fail on some "strict mode" MySQL configurations
  • Upgrades directly from old 1.x versions could fail when migrating collections
  • Theme overrides of plugin views did not apply when on a different plugin's page (#635)
  • The display of item search filters did not always recognize when users filtered by tag
  • Automatic alt attributes for file display were over-escaped
  • Admin-side page titles on hover were over-escaped
  • Long titles for records indexed for the sitewide search could be silently truncated or cause an error
  • The sitewide search form did not respect the documented submit_value option
  • Errors on individual items could cause the "Index Records" job to fail
  • Item Types did not properly clean up after themselves after they were deleted

  • The Norwegian (no) translation has been moved to Norwegian Bokmål (nb).
  • New translations for Bulgarian (bg_BG), Korean (ko_KR).
  • Updates to many existing translations

Read more:

display more versions


(security release)
26 November 2014 - 80MBThis release is the second maintenance release in the 2.2 series. Users of earlier versions are recommended to upgrade.

Bugs Fixed
  • A security issue where files that the server was configured to execute could be uploaded when the file validation was disabled
  • The Delete link for Element Sets did not show the confirmation message as a popup

  • The collections shortcode now accepts an ids parameter for showing specific collections
  • Numerous additional security improvements

  • New translation for Danish (da_DK)
  • Updated translations for Icelandic (is), Polish (pl), Serbian (sr_RS), and Thai (th)

Bundled Add-ons Plugins
  • Exhibit Builder version 3.1.1 (improves security, fixes previous/next page links, updates translations)
  • Simple Pages version 3.0.1 (improves security, updates translations)

Read more:


(major version)
26 November 2014 - 80MBShortcodes
  • Omeka now supports shortcodes for embedding content such as a list of recent or featured items, as well as plugin content, such as a map from the Geolocation plugin.
  • The new Simple Pages plugin bundled with Omeka supports shortcodes in the page text.

Derivative Images
  • Configurable and extensible derivative image (thumbnail) creation
  • Blacklisting and whitelisting image creation by MIME type in config.ini
  • Support for using ext/imagick instead of command-line ImageMagick
  • The default ImageMagick derivative creator no longer separately tries to run identify; this can double thumbnail creation speed for some files
  • Representative Files for Records
  • Any record type can return a "representative" file Omeka can use for displaying thumbnails
  • Collections and Exhibits select a representative image for themselves and so will show thumbnails on the front page, their browse pages, and in shortcodes
  • Items, Files, Collections, Exhibits, and any other records with representative images will show thumbnails on sitewide search results

  • Admins can hide the header listing the element set ("Dublin Core") on item/collection/file pages through Appearance Settings
  • Additional fallback thumbnail icons for audio, video, and image types
  • Sorting links on the default public collections browse view
  • Common "single.php" themeable display for Items, Collections, and Exhibits used in recent and featured sections and shortcodes
  • Dev-editable button text for items-specific search

Admin Interface
  • New interface for manually resending the user activation email message to a user.
  • The user edit page is split among three subpages and more closely follows the admin style
  • The Item-specific advanced search page more closely follows the admin style
  • The File edit page has tabs for each element set and filter-added section, like the Item and Collection add/edit pages
  • The dropdown for selecting a Collection for an item is sorted alphabetically by collection title
  • HTML edit boxes for metadata will automatically grow with the text input

  • Admins can now specify more Allowed HTML Elements, such as iframe
  • Ability to enable or disable element filtering for the API

  • Username restrictions greatly relaxed to allow email addresses as usernames
  • Theme configuration can now be divided into named sections
  • Accessibility improvements throughout the admin and public themes
  • jQuery and jQuery UI now automatically fall back to local copies if the CDN copy can't be loaded
  • All records can be sorted randomly
  • Search term input on "Narrow by Specific Fields" disables for "is empty" and "is not empty" types
  • Files can be internally filtered by original filename (#616, thanks to Daniel Berthereau)
  • Simple "OR" searches on records by providing an array of values (#622, thanks to Daniel Berthereau)

Bugs Fixed
  • MIME types could be incorrectly set for multiple files uploaded simultaneously
  • HTML in titles shown incorrectly on batch-edit
  • Invalid XML characters could break omeka-xml and omeka-json output (#617, thanks to Rachel Donahue)
  • Emails sent by Omeka did not support non-Latin characters (#618, thanks to Marios Bekatoros)
  • Element names were not localized on items/browse listing of filters (#620, thanks to Matti Lassila)
  • On the item-specific advanced search, "does not contain" did not include items that completely omitted the element (#621, thanks to Daniel Berthereau)

Read more:


25 June 2014 - 50MB


25 June 2014 - 50MB


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27 August 2013 - 50MB


27 June 2013 - 50MB


25 April 2013 - 50MB


19 March 2013 - 50MB


21 February 2013 - 50MB


24 January 2013 - 50MB


1 August 2012 - 50MB

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