The chart below originally accompanied our story 22 free tools for data visualization and analysis, but I'm continuing to update it as I cover additional tools. Newest additions are toward the table bottom.

Features: You can sort the chart by clicking on any column header once to sort in ascending order and a second time to sort by descending (browser JavaScript required).

Skill levels are represented as numbers from easiest to most difficult to learn and use:

Users who are comfortable with basic spreadsheet tasks Users who are technically proficient enough not to be frightened off by spending a couple of hours learning a new application Power users Users with coding experience or specialized knowledge in a field like GIS or network analysis. Next page: Screenshots of several tools

Data visualization and analysis tools

*Highcharts is free for non-commercial use and $80 for most single-site-wide licenses. **While add-ons are free, Excel (which is required to run them) is not.

Return to 22 free tools for data visualization and analysis or 8 cool tools for data analysis, visualization and presentation