What sort of tools do you use to analyze data?

Platforms:

Zillabyte (Big data made easy)

Hadoop (opensource software from Apache)

Hortonworks (enterprise Hadoop distribution)

Cloudera (Hadoop distribution)

Amazon Elastic MapReduce (EMR) (Hadoop in the cloud

Visualization:

Tableau (basic data visualization)

ZingChart (paid solution, more powerful)

D3.js (Javascript library for doc manipulation)

Neo4J (graph database)

Languages:

Python (data science libraries like NumPy and SciPy.org)

R (for statistical computing and basic visualization)

there are a set of tools:

1. MS Excel only 
2. Statistics Package for MS Excel
3. SPSS
4. MatLab

hope you find something useful.

thank you for your question.

CSVKit, DataTables, FreeDive, Highcharts JS, Mr. Data Converter are some of the famous tools for data analysis, visualization and presentation.

Excel pivots, R statistics, MS Power BI, Big data (hdfs, kafka, flume, pig, hive...)

Python

R

Tableau

Qlikview

Knime

SPSS

WEKA