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Open-source data 16

Browse the best open-source data tools on Listof.Best — 16 options, ranked by popularity. Compare features, pricing and alternatives at a glance.

Abacus.AI

analytics

AI system builder for chatbots, workflows, and forecasting

Free From $7 50 · 48,545 votes

Spellbook

documents

AI contract review in Word

Free 44 · 56,894 votes

Encord

analytics

Multimodal data annotation and curation platform

Free 42 · 39,433 votes

ViableView

analytics

Market data and insights for entrepreneurs

Free 37 · 50,954 votes

PDFConvo

analytics

Chat with PDFs to extract insights and summaries

Free 37 · 50,665 votes

ChatPDF

analytics

Ask questions and get answers from PDF documents

Free 37 · 49,003 votes

Sigma

research

Private search engine and AI chatbot

Free 37 · 46,336 votes

DocXter

analytics

Extract insights from documents via chat

Free 36 · 29,157 votes

Dxyfer

analytics

Analyze data and generate visualizations with AI

Free 36 · 20,650 votes

Kortix Suna

research

Automate workflows with AI and RPA

Free 35 · 18,651 votes

Wren AI

analytics

Query databases using natural language

Free 34 · 9,749 votes

Diagramming AI

analytics

Generate flowcharts, UML, and architecture diagrams from text

Free 34 · 7,809 votes

Keep It Shot

analytics

Find screenshots by keyword

Free 32 · 3,112 votes

Careerswift

research

AI job search and resume tool

Free 32 · 62,715 votes

Stat Pick

research

Daily AI player prop picks and stats for NBA, MLB, WNBA

Free 30 · 23,080 votes

unlock.domains

research

AI domain name generator with availability checking

Free 28 · 6,489 votes

The range within this category is wide. Tools like Text2SQL and Lovespreadsheets lower the barrier for non-technical users to query databases or work with spreadsheets, while platforms like Coactive and Arria are built for enterprise-scale data narration and unstructured data processing. Hunchbank and Wope address analytics and tracking use cases, and FlowCharts.ai helps visualize workflows and data logic. When evaluating, consider whether you need a tool that connects to live data sources, generates static reports, or supports ongoing querying. Data privacy and where your data is processed matters more here than in most other AI categories, especially for sensitive business or customer data. Pricing varies from free tiers for limited datasets to enterprise contracts for tools with robust connectors and compliance features. Accuracy of generated SQL or analysis outputs should always be validated, particularly in high-stakes reporting contexts.