Text Annotation Tools

Web-based and standalone platforms for manually labeling, marking up, and annotating text data (documents, sentences, entities, translations). Includes collaborative annotation frameworks and crowdsourcing interfaces. Does NOT include automated labeling, evaluation metrics, or post-annotation analysis tools.

There are 77 text annotation tools tracked. 2 score above 50 (established tier). The highest-rated is philenius/ngx-annotate-text at 62/100 with 18 stars and 2,050 monthly downloads.

Get all 77 projects as JSON

curl "https://pt-edge.onrender.com/api/v1/datasets/quality?domain=nlp&subcategory=text-annotation-tools&limit=20"

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#	Tool	Score	Tier	Stars	Language
1	philenius/ngx-annotate-text This Angular component library is perfect for tasks like visualizing named...	62	Established	18	TypeScript
2	davidjurgens/potato potato: the portable annotation tool	54	Established	371	Python
3	johncmunson/react-taggy A simple zero-dependency React component for tagging user-defined entities...	48	Emerging	35	JavaScript
4	jiesutd/YEDDA YEDDA: A Lightweight Collaborative Text Span Annotation Tool. Code for ACL...	44	Emerging	1,073	Python
5	synyi/poplar A web-based annotation tool for natural language processing (NLP)	44	Emerging	530	TypeScript
6	webanno/webanno 🆕 Work continues on INCEpTION 👉...	43	Emerging	250	Java
7	FXLP/MarkTool DoTAT...	41	Emerging	623	Vue
8	s-lilo/brat-peek Framework for working with brat-annotated .ann files	41	Emerging	10	Python
9	Dumbris/trunklucator Python module for data scientists for quick creating annotation projects.	40	Emerging	84	Python
10	cdqa-suite/cdQA-annotator ⛔ [NOT MAINTAINED] A web-based annotator for closed-domain question...	39	Emerging	89	Vue
11	jkkummerfeld/slate A Super-Lightweight Annotation Tool for Experts: Label text in a terminal...	39	Emerging	112	Python
12	Wluper/matilda MATILDA: Multi-AnnoTator multi-language Interactive Lightweight Dialogue Annotator	38	Emerging	149	JavaScript
13	UniversalDataTool/react-nlp-annotate Interface for making NLP annotations.	37	Emerging	47	JavaScript
14	OHNLP/MedTator A Serverless Text Annotation Tool for Corpus Development	36	Emerging	60	JavaScript
15	RTIInternational/SMART Smarter Manual Annotation for Resource-constrained collection of Training data	36	Emerging	229	Python
16	nlp-tlp/redcoat A lightweight web-based annotation tool for labelling entity recognition data.	33	Emerging	23	JavaScript
17	CLARIN-PL/Inforex Inforex is a web system for text corpora construction.	33	Emerging	12	JavaScript
18	proycon/flat FoLiA Linguistic Annotation Tool -- Flat is a web-based linguistic...	33	Emerging	113	JavaScript
19	paperai/pdfanno Linguistic Annotation and Visualization Tool for PDF Documents	33	Emerging	200	JavaScript
20	PranavHerur/ner-server Server endpoint for communicating with stanford-ner server	33	Emerging	25	JavaScript
21	aniruddha-adhikary/anitator A free text annotator	31	Emerging	20	Vue
22	google-research/pangea Panoramic Graph Environment Annotation toolkit, for collecting audio and...	31	Emerging	20	JavaScript
23	dataqa/nlp-labelling Labelling platform for text using weak supervision.	31	Emerging	261	JavaScript
24	rmarquet21/streamlit-annotation-tools Streamlit Annotation Tools is a Streamlit component that gives you access to...	30	Emerging	99	TypeScript
25	davidheineman/thresh 🌾 Universal, customizable and deployable fine-grained evaluation for text generation.	30	Emerging	24	Vue
26	taivop/awesome-data-annotation A list of tools for annotating data, managing annotations, etc.	30	Emerging	609	—
27	sudodoki/nlp-how-to-annotate Set of guides and references for annotating NLP data	30	Emerging	16	—
28	luisgasco/noytext A web-based platform for annotating short-text documents to be used in...	29	Experimental	10	R
29	INK-USC/AlpacaTag AlpacaTag: An Active Learning-based Crowd Annotation Framework for Sequence...	28	Experimental	137	HTML
30	Text-Mining/android-app اپلیکیشن اندروید فارسی‌یار: برنامه برچسب‌زنی پیکره‌های پردازش متن	28	Experimental	28	Java
31	wiragotama/TIARA-annotationTool An Interactive Tool for Annotating Discourse Structure and Text Improvement	28	Experimental	16	JavaScript
32	luccalb/tiptap-annotation-magic An extension for the Tiptap editor, enabling the annotation of text. Comes...	28	Experimental	36	TypeScript
33	hou2zi0/minimal-RTE__ner-training-data Minimal customization of Quill.js Rich Text Editor for easy annotation of...	27	Experimental	10	JavaScript
34	bakrianoo/rafah Rafah NLP Annotation Tool	27	Experimental	20	CSS
35	EttoreCaputo/streamlit-annotator st-annotator is a Streamlit component usefull to annotate text, expecially...	26	Experimental	7	TypeScript
36	timoklimmer/neanno A tool for annotating texts and building annotation prediction models.	26	Experimental	7	Python
37	texttechnologylab/Unified-Dynamic-Annotation-Visualizer Tool for generating dynamic and interactive annotation visualizations.	25	Experimental	3	Java
38	jdagdelen/mondigy A small component for using Mongodb databases with Prodigy annotation applications.	25	Experimental	9	Python
39	cognitivefactory/interactive-clustering-gui An annotation tool for NLP data based on Interactive Clustering methodology.	25	Experimental	5	Python
40	nisheethjaiswal/Data-Annotator-for-SpaCy 🚀SpAnnor annotator for Named Entity Recognition easy to use tool. The...	24	Experimental	3	HTML
41	AI-team-UoA/GreekQA-platform A Crowdsourcing Annotation Platform to collect question and answers on...	24	Experimental	3	JavaScript
42	dzieciou/tree-labeller Helps label training data using taxonomy information.	24	Experimental	4	Python
43	naserih/texTRACTOR Pain Annotating Web Application	24	Experimental	2	JavaScript
44	objectscript/iknow-entity-browser Visualizer of relations between iKnow entities.	24	Experimental	1	JavaScript
45	yasho191/SwiftAnnotate Auto labelling tool for Text, Image, Video	23	Experimental	3	Python
46	MaxMello/ActiveAnno Web-based responsive document annotation tool	22	Experimental	7	JavaScript
47	ysenarath/textflow Framework for Text Annotation.	22	Experimental	7	JavaScript
48	E3-JSI/PREPARE-Extraction-Tool PREPARE Extraction Tool is an application to help create mappings between...	22	Experimental	—	TypeScript
49	Grueneinsel/Arbonotate Browser-based workbench for annotating and comparing dependency trees in...	22	Experimental	—	JavaScript
50	salsowelim/tawseem NLP crowdsourcing platform for word-level annotations	21	Experimental	10	Go
51	tlack/hairytext A data labeling and NLP tool for Elixir (uses Spacy)	21	Experimental	25	Elixir
52	MDD4REST/mdd4rest-annotator An Annotation Tool for annotating software requirements and generate static ontology.	21	Experimental	8	Python
53	manishkumart/Super-Rapid-Annotator-Multimodal-Annotation-Tool This repository is part of the GSoC '24 project and demonstrates video...	21	Experimental	12	Python
54	DocTAG/doctag-core This is the main repository for the DocTAG annotation tool. DocTAG is a...	20	Experimental	25	JavaScript
55	Antarlekhaka/code Multi-task NLP Annotation Framework	19	Experimental	6	JavaScript
56	yaraku/he-tool A tool for assisting human annotators with MQM-based annotation of...	19	Experimental	6	JavaScript
57	paperai/htmlanno Linguistic Annotation and Visualization Tool for XHTML Documents	19	Experimental	10	JavaScript
58	Yusuke196/CAIGen Checkbox-based annotation interface generator, presented in our ACL 2025 paper	18	Experimental	3	JavaScript
59	DIGIT-X-Lab/ANNOTATEX An open-source on-prem text annotation software suite.	18	Experimental	3	TypeScript
60	astutic/Acharya A Data Centric NER annotation tool for your Named Entity Recognition projects	16	Experimental	47	—
61	possible-worlds-research/wikinlp A package to download and preprocess a Wikipedia dump, in any language.	16	Experimental	9	Python
62	LightTag/ylabel In browser active learning and guided search	16	Experimental	17	JavaScript
63	michalwols/cleanser-ui Data annotation tool	16	Experimental	3	JavaScript
64	najeebasad89/Wikipedia-Donation-Destroyer 🛑 Block Wikipedia donation popups, view financial data, and access...	15	Experimental	1	JavaScript
65	viktor-shcherb/fact-annotation Build lightweight knowledge graphs from text in minutes. Annotate entities,...	14	Experimental	4	Python
66	marcusklang/docforia Semistructured Multilayer Document Model	14	Experimental	9	Java
67	ahwang16/mturk-templates A collection of MTurk templates designed to make complex tasks easier for...	14	Experimental	1	HTML
68	GuyKeogh/wiki_verify Uses natural-language processing to help fact-check information in...	13	Experimental	5	Python
69	Oxid15/theme Minimalistic CLI labeling tool for text classification	13	Experimental	6	Python
70	scurkovic/wd2tantivy A program for generating a tantivy index from a Wikidata dump.	12	Experimental	3	Python
71	FilamentAI/qa-annotation The Streamlit tool for the Filament Synthetic QA Pairs project, used to...	12	Experimental	4	Python
72	FrankGrimm/omen OMEN - A dockerized, collaborative, annotation platform.	12	Experimental	4	JavaScript
73	oprogramador/wiki-nlp Natural language processing of the Wikipedia text (as far English only) with...	11	Experimental	2	JavaScript
74	arunchaganty/natalann A simple, useful library for building natural language annotation interfaces.	10	Experimental	1	JavaScript
75	scurkovic/aida-conll-yago-wikidata A program for translating the AIDA CoNLL-YAGO dataset to use Wikidata QIDs...	10	Experimental	1	Rust
76	scurkovic/wikianc A program for generating the WikiAnc dataset.	10	Experimental	1	Rust
77	SaiedAlshahrani/Wikistats-to-CSV Wikistats-to-CSV (wikistats2csv) downloads Wikipedia Statistics for a given...	10	Experimental	1	Python