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What is Open Paper?

OpenPaper is a groundbreaking platform powered by AI, specifically designed to transform how researchers engage with, annotate, and understand scholarly articles. It presents a unique dual-pane interface that allows users to read the full text of a paper while simultaneously interacting with an AI assistant. This assistant ensures that the citations provided are trustworthy, thereby enhancing both transparency and dependability. Among its impressive features are tools for inline annotations, audio summaries of research materials, and a discovery mechanism for related studies via OpenAlex. Researchers have the capability to upload their documents, creating a tailored knowledge base, and can seamlessly transition between various AI models, including GPT-4 and Gemini 2.5 Pro. Furthermore, OpenPaper promotes collaborative efforts by enabling users to share their annotations, thus cultivating a community of scholars who work collaboratively to push the boundaries of their disciplines. The combination of these diverse functionalities positions OpenPaper as an invaluable asset for anyone involved in academic research, ultimately aiming to facilitate a deeper understanding of complex literature.

What is Annotator?

Annotator is an adaptable open-source JavaScript library designed to streamline the integration of annotation features into any website. It allows users to create annotations that can include comments, tags, links, and various user interactions, among other functionalities. With a focus on extensibility, its design enables developers to easily add new features or behaviors as required. Furthermore, Annotator fosters a dynamic global community of developers who contribute to the development of third-party plugins, supporting the annotation of various formats like PDFs, EPUBs, videos, images, and audio files. Getting started with Annotator is simple; just download the library and add it to your HTML code. The library boasts a strong plugin architecture, allowing users to further enhance its capabilities with features such as user permissions, tagging, filtering, and advanced formatting options. Many projects, particularly open-source initiatives, have embraced Annotator for their digital annotation needs. In addition, users can effortlessly share their text and video annotations through social media or email, encouraging collaboration and interaction among peers. The library’s flexibility combined with the robust support from its community makes it a top choice for enhancing web pages with advanced annotation functionalities. Ultimately, Annotator empowers users to foster greater engagement and interaction within their content.

Media

Media

Integrations Supported

GPT-4
Gemini 2.5 Flash
HTML
JavaScript

Integrations Supported

GPT-4
Gemini 2.5 Flash
HTML
JavaScript

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Open Paper

Company Location

United States

Company Website

openpaper.ai/

Company Facts

Organization Name

Annotator

Company Website

annotatorjs.org

Categories and Features

Categories and Features

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