Description: Placehold.it is a simple image placeholder service that generates custom placeholder images for you. Specify image dimensions and background color to get a link to a placeholder image.
Type: software
Pricing: Free
Description: Plotly is an open-source graphing library for Python, R, JavaScript, and Excel. It allows users to create interactive, publication-quality graphs, charts, and dashboards that can be embedded in websites and apps. Plotly is useful for data analysis and visualization.
Type: software
Pricing: Open Source