Best annotation tools in 2025

KnowledgeGraph GPT

Transforms unstructured text into organized knowledge graphs.

StackifyMind

Interactive chat for extracting insights from documents and websites.

Free + from $9.99/m
open
Skryb AI

Quickly summarizes YouTube videos for efficient learning.

BriefAI

Quickly condenses articles into clear summaries.

Deekard

Real-time web data retrieval for applications and research.

Taim

Quickly summarizes articles and videos for instant understanding.

BLUF

Summarizes and clarifies complex content across various formats.

Kensho

AI-driven insights for data analysis and transcription tasks.

PDFPal.ai

Interact with PDF documents through conversational queries.

Podwise

Quickly extract insights from podcast episodes with AI-driven summaries.

Socrates

Quickly analyzes long documents for clear insights and citations.

Humata

AI assistant for quick document insights and summaries.

Scispace

Engaging academic papers through interactive PDF conversations.

Isomeric

Transforms messy text into structured, machine-readable data.

Recapit.xyz

Summarizes lengthy texts into concise, easy-to-understand highlights.

Gist AI

Generate concise summaries of various content types effortlessly.

Podsee

AI-powered tools to summarize and analyze podcast content.

TLDR AI

Summarizes lengthy content into key points for quick understanding.

PrivateGPT.io

Secure access to company knowledge for improved decision-making.

Podscribe.io

Converts audio content into structured, searchable insights.

Lexigram

Extracts clinical data from unstructured text efficiently.

OpenNLP

Efficient library for natural language processing tasks.

SapientML

Generate accurate AI models quickly and effortlessly.

Instill Tech

AI-driven insights for managing unstructured data efficiently.

BunniAI

Streamlined PDF interaction for quick information retrieval.