Free Online Data Tools for Students and Learners

Assignments need data, and setting up software costs time. These free browser tools cover the common student tasks.

Open the Mock Data Generator

A typical data assignment needs a dataset, a way to open it, a bit of cleaning and a few queries. Installing a database or a Python stack just for that can eat the afternoon.

Need a dataset? The Mock Data Generator makes up to 500,000 rows of realistic fake customers, orders and more. Need to change a format? The Format Converter moves between JSON, CSV, Parquet and Excel. Need to practise SQL? SQL on Your Files runs queries on a CSV, Excel, JSON or Parquet file in the browser with DuckDB. Need to tidy a file? Data Transformation trims, filters, joins and removes duplicates.

Use them well. Say in your report that data is synthetic, since fake data is fine for practising but not for drawing real conclusions. Follow your course rules about what tools and data you may use. Keep a copy of each step you took so you can explain your method.

All of these run in your browser and there is no signup. Your files are not uploaded, but you are still responsible for not using personal data from someone else in your assignments.

Open the Mock Data Generator

Related tool pages

  • Fake Data Generator: Generate realistic fake data online: names, emails, addresses, dates and more, up to 500,000 rows, as CSV, JSON, Parquet or Excel. Free.
  • Test Data Generator: Generate test data for databases and apps: names, emails, addresses, dates and numbers, up to 500,000 rows, as CSV, JSON, Parquet or Excel. Free.
  • Fake Database for Testing: Create a fake database for testing: paste a CREATE TABLE script and get realistic rows as INSERT statements, CSV or JSON. Free, in your browser.

How to use the Mock Data Generator: step by step

  1. Pick the task: make data, convert, query or clean.
  2. Open the matching tool.
  3. Download the result.
  4. Note the steps in your report.

When to use the Mock Data Generator

  • Create a dataset for a project
  • Practise SQL on a CSV
  • Convert a file for a tool that needs another format
  • Clean a messy assignment file

Example

Input: Dataset: Customers, 3 rows

Output: id,name,email 1,Maya Patel,maya.patel@example.com 2,Leo Fischer,leo.fischer@example.com

Frequently asked questions

Is the data real?

No. It is random and fictional, so it is safe to share.

Can I get the same data again?

No – each click makes new data. Download to keep a set.

How many rows can the Data Generator create?

Up to 500,000 rows at a time. Choose column types such as names, emails, addresses and dates, then download as CSV, JSON, Parquet or Excel.

Tip: Say clearly in your report that the data is synthetic.