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Health AI app for lab results, daily habits, and health questions.

Documentary and author photography with a searchable image archive

Free online AI face swap for photos, with no login required.

Everyday calculations with topic-specific explanations

Calculators for primers, reaction setup and molecular quantities

An engineering programming environment for developing algorithms, analyzing data, and visualizing results.

A family Cantonese recipe archive with short lessons on heat and knife skills

Historical and cinema pictures, archive collections and vintage mood boards

Shopify product reviews with photo, video and storefront displays on a permanent free plan

Inspect multidimensional images with annotation overlays

Combine vector drawing, painted marks and photo-based artwork on Windows

Digital natural-media brushes and painting customization

Free high-resolution photography with simple CC0 terms

Diverse stock photos with AI-assisted composition changes

Mathematics and practical calculators by subject

Scientific and everyday calculations with units

A desktop calculator with recall and configurable precision

Arithmetic, finance and programming modes in one app

Editable notes with live scientific calculations

Convert and filter chemical structure file formats

Convert compatible quantities and inspect unit definitions from a CLI

Jan Vašek’s free photographs of activities, objects and everyday scenes

Camera-guided tracing onto physical paper

Readable calculators for quick everyday tasks