Free Data Tools for Students and Educators

Practise SQL, generate sample datasets, learn CSV, JSON and Parquet, and prepare files for Python or R assignments. Free, no sign-up, in your browser.

The problem

Students learning data work need practice files, a place to try SQL without installing a database, and help moving between formats. Finding a clean dataset for a class project often takes longer than the project.

Typical jobs and the tool for each

Practice data: the Data Generator creates student records, exam marks, orders and more, in CSV, Excel, JSON or Parquet.

SQL practice: SQL on Your Files runs queries on a CSV in your browser, and the SQL Generator turns a file into CREATE TABLE and INSERT statements for a DBMS lab.

Assignments: convert Excel to CSV for pandas or R, and use the Data Profiler and Data Transformation to check and clean a file.

Learning formats: guides explain what CSV, JSON and Parquet are and when to use each.

• Mock Data Generator
• Student Data Generator: Fake Student Records
• SQL on Your Files: Query CSV, Excel and Parquet
• SQL INSERT Generator from CSV, JSON, Excel or Parquet
• Excel to CSV Converter
• Data Profiler

Limits to know

Generated data is made up, so say so in a report. The tools need no account and files stay in your browser. The AI tools need your own Gemini API key.