Comparison of web (text) annotation editors
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ToolType of clientAnnotated objectContent of annotationTagsAttributesStructuring of annotationsProtocolAnnotation formatFragment descriptionSource code availabilityNote
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4ATinyMCE plugin, Firefox add-onDocument or fragmentPlain textDynamic treeSimple and structuredUsing attributesXML (4A)Open AnnotationOpen Annotation (XPath, offset, length and content)Apache License 2.0 Older protocol and format also available
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RDFaCETinyMCE pluginFragmentData in RDFLinear listSimple and structuredUsing attributestOfflineRDFaRDFa directly in the documentLGPL
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PunditBookmarkletFragmentLinks to the ontology, tags and plain textSearching in ontologyStructured and textUsing triplesHTTP? (in sources)? (in sources, probably XPointer)Client AGPL, server commercial
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DomeoBookmarkletFragmentPlain textSearching in ontologyAccording to pluginsAccording to pluginsHTTP ?Open AnnotationOpen Annotation
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MATWeb applicationFragmentNoLinear listSimple and structuredUsing attributesHTTP ?JSON? (in sources)BSD
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GATE DeveloperDesktop applicationFragmentNoLinear listOnly text (name - value pairs)NoWorks locallyXMLNodes directly in the textLGPLv3
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GATE TeamwareWeb applicationFragmentNoLinear listOnly text (name - value pairs)NoHTTP ?? (in sources)? (in sources)AGPLv3
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AnnotatorJavaScript applicationFragmentPlain text, with plugin can be formattedFree manually entered tagsNoNoJSONJSONXPath and offsetsGPLv3 / MIT
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AnnotaFirefox and Chrome add-onDocument or fragmentPlain textOnly for documentsNoNoJSONJSONcontent, contexts, occurrence, page (for PDF)No
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A.nnotateWeb applicationDocument copy - fragment, image region, ... Plain textFree manually entered tagsNoLinks between annotations and links to the ontologyURIJSONpage, coordinates in text, context and contentNo
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WebAnnoWeb applicationFragmentNoSelection from predefined list (changes in administration)Added in administration and values are selected from predefined list which must be createdLinks between annotations (type and properties of the link can be added)HTTP ?Binary with export into tsv?Apache License 2.0
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bratWeb applicationFragmentPlain textSelection of type of entity from few possibilitiesNoLinks between annotations (few types of links with note)HTTP ?brat stand-off format (plain text TSV) OffsetsYes (without restriction)
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TextAEWeb applicationFragmentNoFree manually entered tags (entity label)NoNamed links between tagged entitiesHTTP (REST)JSONOffsetsYes (Open source)
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mae-annotationDesktop applicationFragmentPlain textLinear listNoLinks between annotationsWorks locallyXMLOffsetsGPLv3
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BioQRatorWeb applicationFragmentRepresentative nameLinear listOnly text (name - value pairs)Relations - created separatelyHTTP ?BioC or CSVBioCNo
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Annotation StudioWeb applicationFragmentPlain text and imagesFree manually entered tagsNoNoHTTP, REST API? (in sources)? (in sources)GPLv2
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Hypothes.isBookmarkletFragmentFormatted textFree manually entered tags (autocomplete of existing)NoNoHTTP ?Open AnnotationOpen AnnotationSimplified BSD(download)
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AnnozillaFirefox add-onFragmentFormatted textList of predefinedNoNoHTTP and XMLRDF AnnoteaXPointerMPL
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AmayaDesktop application - HTML editorDocument or fragmentHTMLNoNoNoHTTP and XMLRDF AnnoteaXPointerYes (GPL compatible)
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AnnotateItJavaScript application, bookmarkletFragmentPlain textNoNoNoURIJSON? (in sources)GPLv3
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MarginaliaWeb application in JavaScriptFragmentPlain textNoNoNo? (in sources)RFC 4287Path to block element and offsetGPLv3
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KnowtatorJava application - Protégé pluginFragmentLink to the ontologyLink to the ontologyIn ontologyIn ontologyWorks locallyIt is possible to export XMLOffsetsYes, but license was not found
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SemantatorJava application - Protégé pluginFragmentLink to the ontologyLink to the ontologyIn ontologyIn ontologyWorks locallyIt is possible to export XMLOffsetsNo, only binary distribution
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loomp / OCATinyMCE pluginFragmentRDFLink to the ontologyIn ontology
(+ relationships in RDF)
In ontology
(+ relationships in RDF)
HTTP and XML ?RDFaRDFaLGPLv3(download)
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AKTive MediaJava applicationFragment, area in the pictureLink to the ontologyLink to the ontologyIn ontologyIn ontologyWorks locallyRDF? (in sources)Yes, but license was not found
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GoNTogleJava application dependent on OpenOfficeDocument or fragmentLink to the ontologyLink to the ontologyNoIn ontologysee serverInstances of OWL classes?No, only binary distributionoutdated
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MagpieFirefox and IE add-onsFragmentLink to the ontologyLink to the ontologyNoIn ontologyWorks locallyClosed?? (not found)
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COATJava web applicationFragment of document in the corporaLink to the ontologyLink to the ontologyNoIn ontologyWeb application working on the serverRDF? (in sources)LGPL (part of NeOn)
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rstWebWeb applicationFragmentNoNoNoNamed links between fragmentsHTTP ?.rs3? (in sources)MIT
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EgasWeb applicationFragmentNoLinear listNoLinks between annotationsHTTPExport into XMLOffsets ?No
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EllogonDesktop applicationDocument or fragment (according to task)NoTree or list (according to task)Simple (fundamentally additional tags)Only restricted in one taskWorks locally? (in sources)? (in sources)LGPL
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GlozzDesktop applicationFragmentNoLinear listNoLinks between annotationsWorks locallyXML? (in sources)? (registration required)
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Djangology Web AnnotatorWeb applicationFragmentNoLinear listNoNoHTTP? (in sources)OffsetsYes, but license was not found
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FlatWeb applicationFragmentNoLinear listNoNoHTTP ?FoLiAParagraph Sentence WordYes, but license was not found
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Anote(2)Desktop applicationFragmentLink to the ontologyLinear listNoNoOffline? (in sources)? (in sources)Yes, freeware (KCCTC and IBB)
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PubTatorWeb applicationFragmentNoLinear listNoNoHTTP ?PubTatorOffsets and contentNo
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TagTogWeb applicationFragmentNoLinear listNoRelations ?HTTP ?Export into TSV, BioC, XMLBioC, ...No
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MyMinerWeb applicationFragmentNoLinear listNoSeparate applicationHTTP ?? (in sources)? (in sources)No
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ArgoWeb applicationFragmentNoTree for view, list for selectionNoNoHTTP ?? (in sources)OffsetsNo
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MarkyWeb applicationFragmentNoLinear listOnly text (question - answer pairs)NoHTTP ?? (in sources)? (in sources)GPLv3
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Wired-MarkerFirefox add-onFragmentPlain text and imageLinear listNoNo? (in sources)? (in sources)? (in sources)Creative Commons
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Text Annotation ToolModule into Open edXFragmentFormatted text with links and imagesLinear listNoNo? (in sources)? (in sources)? (in sources)AGPL
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MyStickiesWeb applicationCoordinates in the documentPlain textFree manually entered tagsNoNoClosedClosed?NoDiscontinued
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DiigoBookmarklet, browser add-onsFragment, document, document screenshotPlain text, drawingFree tags, recommended, last usedNoNoClosedClosed?No (commercial)
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WebNotesBookmarklet, browser add-on, web applicationFragment or coordinates in the documentPlain textSelection from the tree for all annotations togetherNoNoClosedClosed?No (commercial)
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Reframe ItBookmarklet, browser add-onsFragment or documentPlain textFree manually entered tagsNoNoClosedClosed?No (commercial)
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EvernoteDesktop applicationCopy of the documentHeading and formatted textFree manually entered tagsNoNoClosedClosed?No (commercial)
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EliantoWeb applicationFragmentLink to the Wikipedia and relevance for the documentNoNoNoHTTP ?? (in sources)? (in sources)Apache License 2.0
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MnMJava applicationFragmentLink to the ontologyNoNoIn ontologyClosedClosed?KMI license, registration required
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ScribleBookmarkletFragment or documentPlain text, font changes and colorsFree manually entered tags for whole documentNoNoClosedClosed?No (commercial)
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iCommentFirefox and IE add-onsDocument, fragment or picturePlain text with restricted formattingNoNoNoClosedClosed?No(download)
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YawasFirefox and Chrome add-onFragmentNoFree manually entered tags for all annotations togetherNoNoGoogle BookmarksGoogle Bookmarks? (probably only content)No
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GENIUSWeb applicationFragmentPlain text with basic formatting, links and picturesNoNoNoHTTP ???No
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AnnotaryWeb applicationFragmentPlain textNoNoNoHTTP ???No
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AuthoreaWeb applicationFragmentFormatted textNoNoNoHTTP ???No
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FloatNotesFirefox add-onPosition on the pagePlain text with markdown formattingNoNoNoWorks locally, but Firefox sync can be used? (in sources)? (in sources)Yes, as it is written in scripting languages
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Note AnywhereChrome extensionPosition on the pagePlain textNoNoNoWorks locally??No
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NotelyChrome extensionPosition on the pagePlain textNoNoNoWorks locally? (in sources)? (in sources)Yes, but license was not found
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Annotation toolWeb applicationDocument copy - areaHeading and plain text with links2 predefinedNoRepliesClosedClosed?No
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CrocodocWeb applicationDocument copy - fragment, point or areaPlain text, drawing, highlightingNoNoNoClosedClosed?No (commercial)
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NotableBookmarklet, Firefox add-onDocument copy - area, fragment of sourceNoNoNoNoClosedClosed?No (commercial)
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BounceWeb applicationDocument screenshot - areaPlain textNoNoNoClosedClosed?No
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ShiftSpaceFirefox add-onModified copy of the documentPlain text and modifications of the documentNoNoNo? (in sources)JSON? (in sources)MPL(on GitHub)
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WebklipperWeb application, add-on for Firefox, Chrome and IE8 (support ended)Copy of the document - document, fragment or areaPlain text for documentNoNoNoClosedClosed?No
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WissKIDrupal 6 module (PHP < 5.3)Fragment?Linear listSimple????GPLv2Not tested (unable to run)
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CritLinkWeb application (since 2013 out of order) Document or fragmentTitle, plain text, extended preferencesList of predefinedNoUsing linksHTTPHTMLText-Search Fragment IdentifierYes(download)
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Inaccessible
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DM ToolsWeb applicationFragment, area in the pictureFormatted text or linkNoNoUsing linksHTTPExport into Open AnnotationOpen Annotation? (not found)
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OntomatJava applicationFragmentLink to the ontologyLink to the ontologyIn ontologyIn ontologyWorks locally, in 2. mode it is able to store result to the serverRDF stored at the end of HTML or to the serverXPointer? (Service Temporarily Unavailable)
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Awesome HighlighterBookmarklet, Firefox add-onFragmentPlain textNoNoNoClosedClosed?? (page is loading for too long)
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Snip.itBookmarklet and web applicationDocumentPlain textList of predefined categoriesNoNoClosedClosed?No
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SharedCopyBookmarkletDocument copy - fragment or areaPlain text, drawingNoNoNoClosedClosed?? (pages was removed)
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Visits to date:19-11-2017
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hitwebcounter.com
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