Best Free Data Visualization Software

Highcharts is a JavaScript charting library that allows developers to create interactive and visually appealing charts for web applications. It offers a wide range of chart types, including line charts, bar charts, pie charts, scatter plots, and more. It also supports different types of data, including CSV, JSON, and even live data streams. One of the key features of Highcharts is its ability to customize the look and feel of the charts. Developers can easily change the colors, font sizes, and other visual elements to match their brand or design. Additionally, it offers a variety of options for making charts responsive, so they look great on any device. Another great feature is the ability to add interactive elements to charts, such as hover effects, tooltips, and click events. This allows developers to create charts that are not only informative, but also engaging for users. Highcharts also supports exporting charts as PNG, JPEG, PDF, or SVG, making it easy to share or print them.

Grafana Labs delivers the leading AI-powered observability platform, built around Grafana—the world’s most widely adopted open source technology for dashboards and visualization. Recognized as a Leader in the 2025 Gartner® Magic Quadrant™ for Observability Platforms, Grafana Labs supports more than 25 million users and thousands of organizations, from startups to the Fortune 500. Grafana Cloud is the open observability cloud, built on open source, open standards, and open ecosystems. Powered by the LGTM stack—Grafana (visualization), Mimir (metrics), Loki (logs) & Tempo (traces)—it unifies telemetry in one platform for full-stack visibility across applications, infrastructure, and digital experiences. With the AI-powered Grafana Assistant and Adaptive Telemetry suite, teams detect and resolve issues faster, reduce wasteful telemetry spend, and gain real-time insights to ensure reliability. Native OTel support and 100s of integrations mean you can plug in existing tools & data sources.

DbVisualizer is a universal database client for developers, DBAs, analysts, and data engineers working with relational and NoSQL databases. It provides a graphical interface for database development, SQL querying, data exploration, and database admin. The tool includes a powerful SQL editor with intelligent autocomplete, visual query builders, variables, and query execution tools. Customize window layouts, key bindings, and UI themes, mark scripts or database objects as favorites, and configure security settings to meet organizational requirements. Ask questions, explain errors, and analyze code with the built-in AI Assistant. Use the built-in Git integration to manage your SQL scripts and collaboration. DbVisualizer connects to many popular databases through JDBC drivers, including MySQL, PostgreSQL, SQL Server, Oracle, Snowflake, SQLite, Cassandra, and BigQuery. It runs on Windows, macOS, and Linux. Nearly 7 million downloads and Pro users in 150 countries.

Keep your team's minds in sync with Miro (formerly RealtimeBoard and AWW app). A virtual whiteboard and remote collaboration tool, Miro helps cross-functional teams work more efficiently together to build great things. The platform allows teams to ideate, visualize, and share ideas without any boundaries. It comes with over 200 pre-made templates for capturing and visualizing ideas, collaboration tools such as comments, chat, screen sharing, and video chat, and integrations with popular business tools. Miro AI. You and your team, supercharged. You're here to create the next big thing and we're here to help. Unlock the power of your ideas with Miro AI – your new launchpad for creativity, collaboration, and productivity.

Design anything. Publish anywhere. Use Canva’s drag-and-drop feature and professional layouts to design consistently stunning graphics. Design presentations, social media graphics with thousands of beautiful forms, over 100 million stock photos, video & audio, and all the tools you need. Design with millions of stock photos, vectors, and illustrations or upload your own. Edit your photos using preset filters or get advanced with photo editing tools; you’ll never be stuck for choice. Use icons, shapes, and elements with ease. Choose from thousands of parts for your designs, or upload your own. Access everything you need to make a great design for your creative needs. Use Canva Teams to support your company and foster collaboration on projects without having to switch apps. Canva integrates into all major CRM, social media, and management platforms. Magic Write in Canva Docs is your very own AI text generator for social media captions, blog ideas, product descriptions, lyrics, & more.

Dash & Dash Enterprise let you build & deploy analytic web apps using Python, R, and Julia. No JavaScript or DevOps required. Through Dash, the world's largest companies elevate AI, ML, and Python analytics to business users at 5% the cost of a full-stack development approach. Deliver apps and dashboards that run advanced analytics: ML, NLP, forecasting, computer vision and more. Work in the languages you love: Python, R, and Julia. Reduce costs by migrating legacy, per-seat licensed software to Dash Enterprise's open-core, unlimited end-user pricing model. Move faster by deploying and updating Dash apps without an IT or DevOps team. Create pixel-perfect dashboards & web apps, without writing any CSS. Scale effortlessly with Kubernetes. Support mission-critical Python applications with high availability.

Heap is a comprehensive digital insights platform that provides businesses with a complete understanding of their customers’ journeys. By automatically capturing all user interactions across web and mobile platforms, Heap offers actionable insights to optimize conversion, retention, and user experience. The platform uses advanced data science to identify moments of friction and opportunity, allowing businesses to make data-driven decisions quickly. With powerful tools like session replay, heatmaps, and AI-powered insights, Heap enables businesses to understand and improve user behavior at every touchpoint.

Elastic is a search company. As the creators of the Elastic Stack (Elasticsearch, Kibana, Beats, and Logstash), Elastic builds self-managed and SaaS offerings that make data usable in real time and at scale for search, logging, security, and analytics use cases. Elastic's global community has more than 100,000 members across 45 countries. Since its initial release, Elastic's products have achieved more than 400 million cumulative downloads. Today thousands of organizations, including Cisco, eBay, Dell, Goldman Sachs, Groupon, HP, Microsoft, Netflix, The New York Times, Uber, Verizon, Yelp, and Wikipedia, use the Elastic Stack, and Elastic Cloud to power mission-critical systems that drive new revenue opportunities and massive cost savings. Elastic has headquarters in Amsterdam, The Netherlands, and Mountain View, California; and has over 1,000 employees in more than 35 countries around the world.

Directus is an Open Data Platform for managing the content of any SQL database. It provides a powerful API layer for developers and an intuitive App for non-technical users. Written entirely in JavaScript (primarily Node.js and Vue.js), Directus is completely open-source, modular, and extensible, allowing it to be fully tailored to your exact project needs. With Directus Cloud, we've taken our open-source spirit to the cloud by offering Directus Community Cloud, a completely free tier - without quotas or limitations. It's ideal for hobby projects and demos, and when you're ready for production, Standard Cloud has the power and infrastructure options you need. Our pricing is usage-based, which means you only pay for what you use. Use Directus on your next headless cms, internal tool, or SaaS project, or use our Insights for better data management and analytics. With Directus, you're only limited by your imagination.

Welcome to the next generation of performance analytics to track and optimize development projects and teams. Gitential analyzes your coding activities, PRs & reviews and enables you to bring out the very best of your development team. We are committed to empowering software development teams to deliver more. Analyze and improve development productivity based on objective metrics and actionable insights. Back up your business decisions with data for any circumstance. Sprint planning, daily standup or quarterly review with management. Gitential is a platform that delivers automated software development analytics to help teams measure, analyze, and improve development productivity based on actionable insights. Put the right people in a thriving environment and they can achieve anything – like going to the moon and back. This is the driving force of how technology progresses. It’s also how we can build a better future for everyone.

MatDeck is a universal, technical software for Mathematics, Science, Engineering, Chemistry, Coding, Databases and many other uses. Our software offers a complete Python IDE; thousands of mathematical functions; a drag and drop GUI Designer and various visualization tools, all embedded within a cutting-edge, live document for an inexpensive and professional computing environment.

The Vega-Altair open-source project is not affiliated with Altair Engineering, Inc. With Vega-Altair, you can spend more time understanding your data and its meaning. Altair’s API is simple, friendly and consistent and built on top of the powerful Vega-Lite visualization grammar. This elegant simplicity produces beautiful and effective visualizations with a minimal amount of code. The key idea is that you are declaring links between data columns and visual encoding channels, such as the x-axis, y-axis, color, etc. The rest of the plot details are handled automatically. Building on this declarative plotting idea, a surprising range of simple to sophisticated plots and visualizations can be created using relatively concise grammar.

Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Matplotlib makes easy things easy and hard things possible. A large number of third party packages extend and build on Matplotlib functionality, including several higher-level plotting interfaces (seaborn, HoloViews, ggplot, ...), and a projection and mapping toolkit (Cartopy).

With its low-code platform for creating industrial applications, Peakboard GmbH assists production and logistics companies in monitoring their internal processes and managing their own systems interactively. The solution can gather process data from all common data sources, including SAP, machine controls, material flow controls, and Excel. It can then evaluate and display this data on screens in real-time. This approach enables easy identification of sources of errors, thereby increasing productivity. Customers have the autonomy to decide which key figures they would like to be displayed on the dashboard. Furthermore, information can be relayed to over 90 connected IT interfaces using touchscreens. This establishes an intuitive user interface that employees in production and the warehouse can utilize to interact with the complex IT landscape. As a result, controlling production machinery becomes as simple as using a smartphone.

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS. D3’s emphasis on web standards gives you the full capabilities of modern browsers without tying yourself to a proprietary framework, combining powerful visualization components and a data-driven approach to DOM manipulation. D3 allows you to bind arbitrary data to a Document Object Model (DOM), and then apply data-driven transformations to the document. For example, you can use D3 to generate an HTML table from an array of numbers. Or, use the same data to create an interactive SVG bar chart with smooth transitions and interaction. D3 is not a monolithic framework that seeks to provide every conceivable feature. Instead, D3 solves the crux of the problem: efficient manipulation of documents based on data. This avoids proprietary representation and affords extraordinary flexibility, exposing the full capabilities of web standards such as HTML, SVG, and CSS.

DragonGlass is a highly scalable Platform as a Service infrastructure that stores and processes (unmarshalling, indexing, signature verification, etc) data collected from the Hedera Hashgraph platform at a TPS similar to the Mainnet. For end users the platform supports a Google-like search to access accounts, transaction, smart contracts files, … almost everything produced on the Mainnet. For developers, the platform supports a wide range of REST based API’s to access all data. DragonGlass also contains a dApp Marketplace where dApp developers can list their product for users to view all details related to the dApp, including transaction history, balance history, and payment receipts.

WebDataRocks is a simple free JS library for creating functional and easy-to-use pivot tables. It can be used with Angular, Vue, React or any other framework. Free Flexible in customization JavaScript based client-side component Loads 1MB of JSON or CSV data files Full set of enterprise features Integration with 3rd party charting libraries Full set of enterprise features Features like filtering, sorting, grouping, conditional and number formatting, calculated values, totals are available for efficient work with your data. It supports printing or exporting web report to PDF, Excel or HTML with just one click. Ready-to-use modern UI The tool offers a classy spreadsheet-like interface optimized both for browsers and apps. All principles of reliability and excellent user experience are already implemented in this web reporting tool.