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The Data Visualisation Catalogue is a project by Severino Ribecca that provides a non-code-based library of information visualization types. The site serves as a learning and inspiration resource, offering a searchable guide to chart methods such as bar charts, heatmaps and treemaps. Example images mostly use dummy data.
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UMLet is a free, open-source UML tool with a simple user interface for drawing UML diagrams. Sequence and activity diagrams can be created from plain text, and diagrams can be exported to eps, pdf, jpg, svg and the clipboard. It is available as a stand-alone app for Windows, macOS and Linux, as an Eclipse plugin, as the UMLetino web app and as a Visual Studio Code extension.
QuickChart is a web service that generates chart images on the fly from Chart.js configurations, suitable for embedding in email, SMS, chatbots and other formats. Charts are sent through a URL or POST request and rendered by the Chart.js library. It is dual licensed under the GNU AGPLv3 and a commercial license.
drawDB is a free, open-source online database schema design and ER diagram tool. It supports drawing ER diagrams, generating SQL for PostgreSQL, MySQL, SQLite, SQL Server and Oracle, and real-time collaboration. The editor runs in the browser with no account required, and Pro adds cloud storage, teams and collaboration.
Datawrapper is an online tool for creating interactive charts, maps, and tables without code. It offers more than 20 chart types, over 4,000 basemaps for maps, and configurable tables. Visualizations are responsive and can be embedded on websites or exported to PowerPoint, PNG, PDF, and SVG. A step-based editor, custom themes, and real-time collaboration support design and publishing.
The Data Visualisation Catalogue is a project by Severino Ribecca that provides a non-code-based library of information visualization types. The site serves as a learning and inspiration resource, offering a searchable guide to chart methods such as bar charts, heatmaps and treemaps. Example images mostly use dummy data.
ArrayCat is a browser-based tool for converting strings, lists and CSV columns into PHP, JavaScript, Python, Go, Delphi and Pascal arrays, JSON arrays, MySQL inserts or plain lists. It can remove duplicates, empty items and diacritics, sort lists, change letter case, normalize whitespace and encode Base64. Input is processed in the browser and not uploaded.
