After a big leap up the list last year it falls back 49 places this year

Wolfram Alpha is more than a search engine. It gives you access to the world’s facts and data and calculates answers across a range of topics

Website: wolframalpha.com
Cost: Free and Premium versions
Availability: Online

Top 100 Tools for Personal & Professional Learning 2019: –
Top 100 Tools for Workplace Learning 2019: –
Top 100 Tools for Higher Education 2019: 99

Past Overall Rankings
2018: 139    2017: 200     2016: 198    2015: –    2014: –   2013: –
2012: –        2011: –          2010: –         2009: –    2008: –   2007: –

Comments from some of those who selected Wolfram Alpha as one of their Top 10 Tools 

“So many great visualizations, sometimes better than Google Search.” Anon, USA

“WolframAlpha is not just all about Maths, it covers so many subjects and even though they would love us to pay for WolframAlpha pro, the free model still offers unlimited queries everyday!” Colleen Young, Primary/Secondary (K12) teacher, USA