| Tool |
Type of client |
Annotated object |
Content of annotation |
Tags |
Attributes |
Structuring of annotations |
Protocol |
Annotation format |
Fragment description |
Source code availability |
Note |
| 4A |
TinyMCE plugin, Firefox add-on |
Document or fragment |
Plain text |
Dynamic tree |
Simple and structured |
Using attributes |
XML (4A) |
Open Annotation |
Open Annotation (XPath, offset, length and content) |
Apache License 2.0 |
Older protocol and format also available |
| RDFaCE |
TinyMCE plugin |
Fragment |
Data in RDF |
Linear list |
Simple and structured |
Using attributest |
Offline |
RDFa |
RDFa directly in the document |
LGPL |
|
| Pundit |
Bookmarklet |
Fragment |
Links to the ontology, tags and plain text |
Searching in ontology |
Structured and text |
Using triples |
HTTP |
? (in sources) |
? (in sources, probably XPointer) |
Client AGPL, server commercial |
|
| Domeo |
Bookmarklet |
Fragment |
Plain text |
Searching in ontology |
According to plugins |
According to plugins |
HTTP ? |
Open Annotation |
Open Annotation |
|
|
| MAT |
Web application |
Fragment |
No |
Linear list |
Simple and structured |
Using attributes |
HTTP ? |
JSON |
? (in sources) |
BSD |
|
| GATE Developer |
Desktop application |
Fragment |
No |
Linear list |
Only text (name - value pairs) |
No |
Works locally |
XML |
Nodes directly in the text |
LGPLv3 |
|
| GATE Teamware |
Web application |
Fragment |
No |
Linear list |
Only text (name - value pairs) |
No |
HTTP ? |
? (in sources) |
? (in sources) |
AGPLv3 |
|
| Annotator |
JavaScript application |
Fragment |
Plain text, with plugin can be formatted |
Free manually entered tags |
No |
No |
JSON |
JSON |
XPath and offsets |
GPLv3 / MIT |
|
| Annota |
Firefox and Chrome add-on |
Document or fragment |
Plain text |
Only for documents |
No |
No |
JSON |
JSON |
content, contexts, occurrence, page (for PDF) |
No |
|
| A.nnotate |
Web application |
Document copy - fragment, image region, ... |
Plain text |
Free manually entered tags |
No |
Links between annotations and links to the ontology |
URI |
JSON |
page, coordinates in text, context and content |
No |
|
| WebAnno |
Web application |
Fragment |
No |
Selection from predefined list (changes in administration) |
Added in administration and values are selected from predefined list which must be created |
Links between annotations (type and properties of the link can be added) |
HTTP ? |
Binary with export into tsv |
? |
Apache License 2.0 |
|
| brat |
Web application |
Fragment |
Plain text |
Selection of type of entity from few possibilities |
No |
Links between annotations (few types of links with note) |
HTTP ? |
brat stand-off format (plain text TSV) |
Offsets |
Yes (without restriction) |
|
| TextAE |
Web application |
Fragment |
No |
Free manually entered tags (entity label) |
No |
Named links between tagged entities |
HTTP (REST) |
JSON |
Offsets |
Yes (Open source) |
|
| mae-annotation |
Desktop application |
Fragment |
Plain text |
Linear list |
No |
Links between annotations |
Works locally |
XML |
Offsets |
GPLv3 |
|
| BioQRator |
Web application |
Fragment |
Representative name |
Linear list |
Only text (name - value pairs) |
Relations - created separately |
HTTP ? |
BioC or CSV |
BioC |
No |
|
| Annotation Studio |
Web application |
Fragment |
Plain text and images |
Free manually entered tags |
No |
No |
HTTP, REST API |
? (in sources) |
? (in sources) |
GPLv2 |
|
| Hypothes.is |
Bookmarklet |
Fragment |
Formatted text |
Free manually entered tags (autocomplete of existing) |
No |
No |
HTTP ? |
Open Annotation |
Open Annotation |
Simplified BSD |
(download) |
| Annozilla |
Firefox add-on |
Fragment |
Formatted text |
List of predefined |
No |
No |
HTTP and XML |
RDF Annotea |
XPointer |
MPL |
|
| Amaya |
Desktop application - HTML editor |
Document or fragment |
HTML |
No |
No |
No |
HTTP and XML |
RDF Annotea |
XPointer |
Yes (GPL compatible) |
|
| AnnotateIt |
JavaScript application, bookmarklet |
Fragment |
Plain text |
No |
No |
No |
URI |
JSON |
? (in sources) |
GPLv3 |
|
| Marginalia |
Web application in JavaScript |
Fragment |
Plain text |
No |
No |
No |
? (in sources) |
RFC 4287 |
Path to block element and offset |
GPLv3 |
|
| Knowtator |
Java application - Protégé plugin |
Fragment |
Link to the ontology |
Link to the ontology |
In ontology |
In ontology |
Works locally |
It is possible to export XML |
Offsets |
Yes, but license was not found |
|
| Semantator |
Java application - Protégé plugin |
Fragment |
Link to the ontology |
Link to the ontology |
In ontology |
In ontology |
Works locally |
It is possible to export XML |
Offsets |
No, only binary distribution |
|
| loomp / OCA |
TinyMCE plugin |
Fragment |
RDF |
Link to the ontology |
In ontology
(+ relationships in RDF) |
In ontology
(+ relationships in RDF) |
HTTP and XML ? |
RDFa |
RDFa |
LGPLv3 |
|
| AKTive Media |
Java application |
Fragment, area in the picture |
Link to the ontology |
Link to the ontology |
In ontology |
In ontology |
Works locally |
RDF |
? (in sources) |
Yes, but license was not found |
|
| GoNTogle |
Java application dependent on OpenOffice |
Document or fragment |
Link to the ontology |
Link to the ontology |
No |
In ontology |
see server |
Instances of OWL classes |
? |
No, only binary distribution |
outdated |
| Magpie |
Firefox and IE add-ons |
Fragment |
Link to the ontology |
Link to the ontology |
No |
In ontology |
Works locally |
Closed |
? |
? (not found) |
|
| COAT |
Java web application |
Fragment of document in the corpora |
Link to the ontology |
Link to the ontology |
No |
In ontology |
Web application working on the server |
RDF |
? (in sources) |
LGPL (part of NeOn) |
|
| rstWeb |
Web application |
Fragment |
No |
No |
No |
Named links between fragments |
HTTP ? |
.rs3 |
? (in sources) |
MIT |
|
| Egas |
Web application |
Fragment |
No |
Linear list |
No |
Links between annotations |
HTTP |
Export into XML |
Offsets ? |
No |
|
| Ellogon |
Desktop application |
Document or fragment (according to task) |
No |
Tree or list (according to task) |
Simple (fundamentally additional tags) |
Only restricted in one task |
Works locally |
? (in sources) |
? (in sources) |
LGPL |
|
| Glozz |
Desktop application |
Fragment |
No |
Linear list |
No |
Links between annotations |
Works locally |
XML |
? (in sources) |
? (registration required) |
|
| Djangology Web Annotator |
Web application |
Fragment |
No |
Linear list |
No |
No |
HTTP |
? (in sources) |
Offsets |
Yes, but license was not found |
|
| Flat |
Web application |
Fragment |
No |
Linear list |
No |
No |
HTTP ? |
FoLiA |
Paragraph Sentence Word |
Yes, but license was not found |
|
| Anote(2) |
Desktop application |
Fragment |
Link to the ontology |
Linear list |
No |
No |
Offline |
? (in sources) |
? (in sources) |
Yes, freeware (KCCTC and IBB) |
|
| PubTator |
Web application |
Fragment |
No |
Linear list |
No |
No |
HTTP ? |
PubTator |
Offsets and content |
No |
|
| TagTog |
Web application |
Fragment |
No |
Linear list |
No |
Relations ? |
HTTP ? |
Export into TSV, BioC, XML |
BioC, ... |
No |
|
| MyMiner |
Web application |
Fragment |
No |
Linear list |
No |
Separate application |
HTTP ? |
? (in sources) |
? (in sources) |
No |
|
| Argo |
Web application |
Fragment |
No |
Tree for view, list for selection |
No |
No |
HTTP ? |
? (in sources) |
Offsets |
No |
|
| Marky |
Web application |
Fragment |
No |
Linear list |
Only text (question - answer pairs) |
No |
HTTP ? |
? (in sources) |
? (in sources) |
GPLv3 |
|
| Wired-Marker |
Firefox add-on |
Fragment |
Plain text and image |
Linear list |
No |
No |
? (in sources) |
? (in sources) |
? (in sources) |
Creative Commons |
|
| Text Annotation Tool |
Module into Open edX |
Fragment |
Formatted text with links and images |
Linear list |
No |
No |
? (in sources) |
? (in sources) |
? (in sources) |
AGPL |
|
| MyStickies |
Web application |
Coordinates in the document |
Plain text |
Free manually entered tags |
No |
No |
Closed |
Closed |
? |
No |
Discontinued |
| Diigo |
Bookmarklet, browser add-ons |
Fragment, document, document screenshot |
Plain text, drawing |
Free tags, recommended, last used |
No |
No |
Closed |
Closed |
? |
No (commercial) |
|
| WebNotes |
Bookmarklet, browser add-on, web application |
Fragment or coordinates in the document |
Plain text |
Selection from the tree for all annotations together |
No |
No |
Closed |
Closed |
? |
No (commercial) |
|
| Reframe It |
Bookmarklet, browser add-ons |
Fragment or document |
Plain text |
Free manually entered tags |
No |
No |
Closed |
Closed |
? |
No (commercial) |
|
| Evernote |
Desktop application |
Copy of the document |
Heading and formatted text |
Free manually entered tags |
No |
No |
Closed |
Closed |
? |
No (commercial) |
|
| Elianto |
Web application |
Fragment |
Link to the Wikipedia and relevance for the document |
No |
No |
No |
HTTP ? |
? (in sources) |
? (in sources) |
Apache License 2.0 |
|
| MnM |
Java application |
Fragment |
Link to the ontology |
No |
No |
In ontology |
Closed |
Closed |
? |
KMI license, registration required |
|
| Scrible |
Bookmarklet |
Fragment or document |
Plain text, font changes and colors |
Free manually entered tags for whole document |
No |
No |
Closed |
Closed |
? |
No (commercial) |
|
| iComment |
Firefox and IE add-ons |
Document, fragment or picture |
Plain text with restricted formatting |
No |
No |
No |
Closed |
Closed |
? |
No |
(download) |
| Yawas |
Firefox and Chrome add-on |
Fragment |
No |
Free manually entered tags for all annotations together |
No |
No |
Google Bookmarks |
Google Bookmarks |
? (probably only content) |
No |
|
| GENIUS |
Web application |
Fragment |
Plain text with basic formatting, links and pictures |
No |
No |
No |
HTTP ? |
? |
? |
No |
|
| Annotary |
Web application |
Fragment |
Plain text |
No |
No |
No |
HTTP ? |
? |
? |
No |
|
| Authorea |
Web application |
Fragment |
Formatted text |
No |
No |
No |
HTTP ? |
? |
? |
No |
|
| FloatNotes |
Firefox add-on |
Position on the page |
Plain text with markdown formatting |
No |
No |
No |
Works locally, but Firefox sync can be used |
? (in sources) |
? (in sources) |
Yes, as it is written in scripting languages |
|
| Note Anywhere |
Chrome extension |
Position on the page |
Plain text |
No |
No |
No |
Works locally |
? |
? |
No |
|
| Notely |
Chrome extension |
Position on the page |
Plain text |
No |
No |
No |
Works locally |
? (in sources) |
? (in sources) |
Yes, but license was not found |
|
| Annotation tool |
Web application |
Document copy - area |
Heading and plain text with links |
2 predefined |
No |
Replies |
Closed |
Closed |
? |
No |
|
| Crocodoc |
Web application |
Document copy - fragment, point or area |
Plain text, drawing, highlighting |
No |
No |
No |
Closed |
Closed |
? |
No (commercial) |
|
| Notable |
Bookmarklet, Firefox add-on |
Document copy - area, fragment of source |
No |
No |
No |
No |
Closed |
Closed |
? |
No (commercial) |
|
| Bounce |
Web application |
Document screenshot - area |
Plain text |
No |
No |
No |
Closed |
Closed |
? |
No |
|
| ShiftSpace |
Firefox add-on |
Modified copy of the document |
Plain text and modifications of the document |
No |
No |
No |
? (in sources) |
JSON |
? (in sources) |
MPL |
(on GitHub) |
| Webklipper |
Web application, add-on for Firefox, Chrome and IE8 (support ended) |
Copy of the document - document, fragment or area |
Plain text for document |
No |
No |
No |
Closed |
Closed |
? |
No |
|
| WissKI |
Drupal 6 module (PHP < 5.3) |
Fragment |
? |
Linear list |
Simple |
? |
? |
? |
? |
GPLv2 |
Not tested (unable to run) |
| CritLink |
Web application (since 2013 out of order) |
Document or fragment |
Title, plain text, extended preferences |
List of predefined |
No |
Using links |
HTTP |
HTML |
Text-Search Fragment Identifier |
Yes |
(download) |
| Inaccessible |
|
|
|
|
|
|
|
|
|
|
|
| DM Tools |
Web application |
Fragment, area in the picture |
Formatted text or link |
No |
No |
Using links |
HTTP |
Export into Open Annotation |
Open Annotation |
? (not found) |
|
| Ontomat |
Java application |
Fragment |
Link to the ontology |
Link to the ontology |
In ontology |
In ontology |
Works locally, in 2. mode it is able to store result to the server |
RDF stored at the end of HTML or to the server |
XPointer |
? (Service Temporarily Unavailable) |
|
| Awesome Highlighter |
Bookmarklet, Firefox add-on |
Fragment |
Plain text |
No |
No |
No |
Closed |
Closed |
? |
? (page is loading for too long) |
|
| Snip.it |
Bookmarklet and web application |
Document |
Plain text |
List of predefined categories |
No |
No |
Closed |
Closed |
? |
No |
|
| SharedCopy |
Bookmarklet |
Document copy - fragment or area |
Plain text, drawing |
No |
No |
No |
Closed |
Closed |
? |
? (pages was removed) |
|