General tools
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All years
Photo Editor
A full image editor that runs in your browser — crop, resize, add text and work in layers. Useful for coursework screenshots, website images and project artwork.
Open Photo Editor ↗📐
All years
Diagrams.net
A free diagram editor for flowcharts, system diagrams, network maps and ER diagrams. Ideal for planning an algorithm before you code it, or drawing the diagrams your coursework and exam answers need.
Open Diagrams.net ↗🗄️
A Level
SQL Playground
A real SQL database that runs entirely in your browser — create tables, insert records and run queries to see the results straight away. Perfect for practising SELECT, WHERE and JOIN without installing anything.
Open SQL Playground ↗