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Libraries · head to head

Omeka vs Sigil

Omeka logo

Omeka

Libraries

Publish collections and create rich digital experiences

From
Free
Rated
-
Full reviewWebsite
Sigil logo

Sigil

Publishing

Open source EPUB editor for working directly on the file, not generating it

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Omeka omeka Classic designed for individual projects rather than large institutional deployments; Sigil it produces no print output whatever, so any book that needs a paperback interior requires a completely separate tool and a second workflow.
  • They diverge on capability: Omeka covers Item and collection management, Sigil covers Direct EPUB editing.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Omeka and Sigil actually diverge.

Attributes where Omeka and Sigil differ
AttributeOmekaSigil
Pricing modelopen-sourceOpen source, no licence fee
PlatformsWebWindows, macOS, Linux
CategoryLibrariesPublishing
Founded2007Unknown

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 Omeka

  • Item and collection management
  • Dublin Core metadata
  • Online exhibitions
  • Plugin architecture
  • Theme customization
  • Simple workflow
  • File management
  • Tag and search

Only in Sigil

  • Direct EPUB editing
  • Code and preview views
  • EPUB 2 and EPUB 3
  • Regex across files
  • Validation
  • Python plugins

What people use each for

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

Omeka

  • Academic and research institutions creating digital collections with Dublin Core metadatanot Sigil
  • Museums and archives publishing heritage collections with semantic web capabilitiesnot Sigil
  • Individual projects and educators creating media-rich online exhibitsnot Sigil

Sigil

  • Fixing an EPUB that a retailer validator has rejected, without re-exporting from the tool that generated itnot Omeka
  • Correcting the table of contents, reading order or metadata in a file supplied by a conversion servicenot Omeka
  • Preparing a back-catalogue title where the only surviving source is the EPUB itselfnot Omeka
  • Applying a consistent stylesheet or a bulk text correction across every chapter of a book at oncenot Omeka

Where each one falls short

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

Omeka

  • Omeka Classic designed for individual projects rather than large institutional deployments
  • Requires self-hosting and technical setup; no managed hosting option in Classic version
  • Omeka S pricing not publicly disclosed, available only for download or sandbox testing
  • Limited scalability for institutions managing multiple extensive collections

Sigil

  • It produces no print output whatever, so any book that needs a paperback interior requires a completely separate tool and a second workflow.
  • Meaningful use requires reading and writing HTML and CSS, which puts it out of reach of most authors who simply want a finished file.
  • There is no cloud storage, sync or collaboration, so the book exists as a file on one machine and version control is whatever you set up yourself.
  • Development depends on a small number of volunteer maintainers, so release timing and platform builds follow their availability rather than a roadmap, and a lapse in maintenance would leave no obvious successor.
  • It provides no distribution, no retailer connection and no Kindle-native output, so it sits in the middle of a workflow that other tools have to complete on both sides.

Pricing, plan by plan

Omeka

Free

No published plan breakdown. See the Omeka review.

Sigil

Free
  • SigilFree
    • GPL licensed with no cost or account required
    • Full functionality with no feature gating
    • Community support through forums and the issue tracker

Which should you pick?

Choose Omeka if

  • You need item and collection management.
  • You want to start without paying.
  • You also want dublin core metadata.
Omeka review

Choose Sigil if

  • You need direct epub editing.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want code and preview views.
Sigil review

Questions people ask

Is Omeka or Sigil better?
Neither clearly leads. Omeka starts at Free and Sigil at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Omeka or Sigil?
Omeka starts at Free and Sigil at Free.
Does Omeka or Sigil run on more platforms?
Omeka runs on Web. Sigil runs on Windows, macOS, Linux.
Can I use Omeka for free?
Both have a free tier, so you can try either at no cost before committing.
What is Omeka best used for?
Omeka is most often used for academic and research institutions creating digital collections with dublin core metadata, museums and archives publishing heritage collections with semantic web capabilities, individual projects and educators creating media-rich online exhibits. Of those, academic and research institutions creating digital collections with dublin core metadata and museums and archives publishing heritage collections with semantic web capabilities are not what Sigil is typically brought in for.
What can Omeka do that Sigil cannot?
Omeka covers Item and collection management, Dublin Core metadata, Online exhibitions, Plugin architecture. Sigil covers Direct EPUB editing, Code and preview views, EPUB 2 and EPUB 3, Regex across files.

Answered from the vendors’ own pages

Omeka: How much does Omeka cost?

Omeka Classic and Omeka S are free to download and use under the GNU GPL open source license. Hosted services through Omeka.net and managed Omeka Services require visiting their respective pricing pages.

Source
Sigil: Can I write my book in Sigil?

You can, but you should not. It is an EPUB editor, not a word processor, and writing long-form prose in it is unpleasant. Write elsewhere, import, then finish in Sigil.

Omeka: Is Omeka open source?

Yes, Omeka is open source software distributed under the GNU copyleft GPL license, making it freely available for individual projects, educational use, and institutional resource management.

Source
Sigil: Does it make Kindle files?

Not natively. Produce a valid EPUB in Sigil and let Amazon convert it, or use a separate conversion tool for other Kindle formats.

Omeka: Are there hosted options for Omeka?

Yes, Omeka.net provides hosted service options and Omeka Services offers managed hosting and support plans, though specific pricing details are not disclosed on the main Omeka website.

Source
Sigil: Is it safe to rely on a volunteer project for commercial work?

The files it produces are standard EPUB, so nothing is locked in. The risk is that maintenance stops, not that your books become unreadable.

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