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GitHub
github.com › doccano › doccano
GitHub - doccano/doccano: Open source annotation tool for machine learning practitioners.
doccano is an open-source text annotation tool for humans. It provides annotation features for text classification, sequence labeling, and sequence to sequence tasks. You can create labeled data for sentiment analysis, named entity recognition, ...
Starred by 10.4K users
Forked by 1.8K users
Languages   Python 53.8% | Vue 32.8% | TypeScript 8.4% | JavaScript 4.3% | Shell 0.4% | Dockerfile 0.2% | CSS 0.1%
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GitHub
github.com › tecoholic › ner-annotator
GitHub - tecoholic/ner-annotator: Named Entity Recognition (NER) Annotation tool for SpaCy. Generates Traning Data as a JSON which can be readily used.
Named Entity Recognition (NER) Annotation tool for SpaCy. Generates Traning Data as a JSON which can be readily used. - tecoholic/ner-annotator
Starred by 590 users
Forked by 169 users
Languages   Vue 63.0% | JavaScript 33.4% | SCSS 1.6% | Rust 1.4% | HTML 0.6%
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Reddit
reddit.com › r/languagetechnology › best open source annotation tool for nlp?
r/LanguageTechnology on Reddit: Best open source annotation tool for NLP?
November 10, 2022 -

I am working for a startup as a Data Scientist and I have to setup the annotation pipeline from scratch. I have to annotate for NLP tasks like multi-label text classification and NER. I have tried Docano and Argilla.io. Argilla is really good for both these NLP tasks only con is I am not able to run it on a server for multiple annotators to work on and collaborate. Can anyone recommend the best tool they have found useful? If not open sourced any economical paid product out there? (Prodi.gy is 500usd one time, something cheaper or limited period subscription would also be helpful since it will be difficult to convince then to directly invest 500usd at once) Please share your experience if you have any best practices for setting up the annotation pipeline :)

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Arunmozhi
arunmozhi.in › ner-annotator
NER Annotator for SpaCy
I decided to migrate a Python Django application to FastAPI. The app was mainly serving APIs for triggering some background tasks. Whatever data it needed could be just put into configs or JSON files · I have recently started using Claude Code and have found it very useful for experimentation ...
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Prodigy
prodi.gy › docs › named-entity-recognition
Named Entity Recognition · Prodigy · An annotation tool for AI, Machine Learning & NLP
API › Annotation Interfaces · API › Web Application · API › Loaders & Input Data · API › Components & Functions · API › Database · Plugins › Open Source Plugins · Plugins › Single Sign-on (SSO) Plugins › Modal · Tagging names, concepts or key phrases is a crucial task for natural language understanding pipelines. Prodigy lets you label NER training data or improve an existing model’s accuracy.
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Bohemian
bohemian.ai › blog › text-annotation-tools-which-one-pick-2020
Text Annotation Tools: Which One to Pick in 2020? - Bohemian AI
Ultimately, the tool you choose will largely depend on your specific annotation needs and personal preferences. Here’s our primer on some of the most popular text annotation tools for 2020: Doccano is a web-based, open-source text annotation tool.
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Medium
medium.com › @arie.pratama.s › top-open-sourced-nlp-tools-for-python-faa412aeed86
Top Open Sourced NLP Tools for Python | by Arie Pratama Sutiono | Medium
July 3, 2019 - Doccano is one of the best data annotation tool, in my personal experience. It definitely open source! I would consider this as alternatives to prodi.gy from explosion.ai. It currently has 3 main annotation functions: Named Entity Recognition ...
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Medium
medium.com › @akshai.148 › setup-free-nlp-ner-annotation-tool-for-custom-ner-model-763181a3bb27
Setup Free NLP NER Annotation Tool For Custom NER Model | by Akshay Kumar C P | Medium
July 31, 2021 - The goal of this article: Set up a NER annotation tool that generates a training file for training a custom NLP NER model. Credits to @tecoholic for open-sourcing the ner-annotator tool.
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GitHub
github.com › topics › annotation-tool
annotation-tool · GitHub Topics · GitHub
tools image-annotation tensorflow detection video-annotation annotations polygon yolo ssd imagenet faster-rcnn image-classification segmentation labelling object-detection annotation-tool mask-rcnn label-images turicreate detectron ... Automatic Summarization of Resumes with NER -> Evaluate resumes at a glance through Named Entity Recognition
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Adyog
blog.adyog.com › home › best open-source annotation tools for nlp and ml
Best Open-Source Annotation Tools for NLP and ML
December 14, 2024 - Label Studio tops the list as the most versatile and feature-rich open-source annotation tool. It supports a wide range of tasks including text classification, named entity recognition (NER), image segmentation, video annotation, and even audio ...
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GitHub
github.com › vaibhav810 › NLP-Annotator-Tool
GitHub - vaibhav810/NLP-Annotator-Tool: Annotations tool for named entity recognition
NER Tool is an open source text annotation tool for human. It provides annotation features for text classification, sequence labeling and sequence to sequence. So, you can create labeled data for sentiment analysis, named entity recognition, ...
Author   vaibhav810
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PyPI
pypi.org › project › ner-annotator
ner-annotator · PyPI
You can convert this output into ... to the ner_annotator tool. In this way, on your output folder you will also find a pickle file (with the same name as the given .json output file, but with no extension), which can then be used to load entities in another program with the requested NLP library. To load the saved pickle file, you can do something along these lines: import pickle pickle.load(open("~/Deskto...
      » pip install ner-annotator
    
Published   Sep 26, 2020
Version   0.1.1
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ITNEXT
itnext.io › text-annotation-tools-for-nlp-c254f8ee52f7
Text Annotation Tools for NLP. The goal of this article is to give a… | by Javier Ramos | ITNEXT
February 18, 2023 - Text Annotation Tools for NLP Introduction The goal of this article is to give a quick overview of the tools available to you to perform Text Annotation (Data Labeling) in the Natural Language …
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Simonwenkel
simonwenkel.com › lists › software › list-of-annotation-tools-for-machine-learning-research.html
List of Open-Source Annotation Tools for Machine Learning Research
DeepLabCut is full software suite for animal pose estimation (humans included). Besides a full inference pipeline it does contain an annotation tool. ... general purpose annotation tool that supports labeling for audio, computer vision and NLP applications with an integrated ML backend for active learning
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John Snow Labs
johnsnowlabs.com › home › top 6 annotation tools for hitl llms evaluation and domain-specific ai model training
Top 6 Annotation Tools for HITL LLMs Evaluation and Domain-Specific ...
June 6, 2025 - Annotations types and Annotation content type: Dataloop covers a wide range of use cases—image and video annotation with advanced features like instance segmentation, LiDAR and GIS support for 3D and geospatial data, and text/audio tasks like classification and NER. It supports a wide array of formats: images, videos, text, audio, PDFs, LiDAR (.pcd, .las), and GIS files. ... Multi-modal AI projects that require iterative validation and support for RLHF or complex document structures. ... A good choice for researchers and teams building tightly coupled ML pipelines. Its extensibility and open-source nature make it a strong foundation for experimental or custom validation setups.
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Reddit
reddit.com › r/languagetechnology › which tool did you use for ner annotation?
r/LanguageTechnology on Reddit: Which tool did you use for NER Annotation?
April 28, 2021 - Has anyone works with NER before? Searching for FOC tool. Thanks! Share ... Just to add on, both prodigy and ubiai are both paid tools if I am not mistaken. Doccano is a open source solution ... Docanno is the one I used before. Very easy to use and setup. Might take a bit more time if you wanna set it up for multiple annotators...
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Quora
quora.com › What-is-the-best-open-source-text-annotation-software-The-intent-is-creation-of-a-machine-learning-corpus
What is the best open source text annotation software? The intent is creation of a machine learning corpus. - Quora
Answer (1 of 8): Across various domains, such as health and social care, law, news, and social media, there are increasing quantities of unstructured texts being produced. These potential data sources often contain rich information that could be used for domain-specific and research purposes. How...
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Awesomeopensource
awesomeopensource.com › projects › annotation-tool
The Top 23 Annotation Tool Open Source Projects
RectLabel is an offline image annotation tool for object detection and segmentation. ... Named Entity Recognition (NER) Annotation tool for SpaCy.