Utilities
QR Studio
Turn text and links into QR codes. Customize colors, add your logo, and download PNG or SVG. Everything stays in your browser.
Open QR StudioUltraFish Plus
Interactive projects, compact tools, and playful systems.
A focused index of small products built around AI exploration, computation, learning, and useful interfaces.
Featured
Start with a featured project.
AI
VisionFish
Chat with an UltraFish Plus project for image-aware exploration and lightweight AI interaction.
Open VisionFish
AI
Unsent
Turn emotionally risky drafts into calm, clear, sendable messages with an AI rewriting assistant.
Open UnsentDirectory
Browse the project collection.
Utilities
QR Studio
Create QR codes for text and links, add a logo, and export PNG or SVG images locally.
Open QR Studio
AI
Handwriting Synthesis with RNNs
Generate handwriting-like strokes from a recurrent neural network experiment.
Open project
Academic Tools
Morse Code Translator
Translate text and Morse code through a compact browser-based utility.
Open project
Simulations
Conway's Game of Life
Explore a classic cellular automaton through an interactive simulation.
Open project
Academic Tools
GPA Calculator
Calculate GPA information for The Hong Kong Polytechnic University applications.
Open tool
Number Systems
Multiple Bases Unsigned Integer Convertor
Convert unsigned integers across common number bases for quick study and checking.
Open tool
Number Systems
Floating Point Numbers Convertor
Inspect IEEE 754-style floating point representation through an interactive utility.
Open tool
Academic Tools
Josephus Problem with Python
Learn an efficient Python solution to the Josephus problem.
Open tool
Number Systems
Signed Binary Number Convertor
Compare signed binary number representations in a focused conversion tool.
Open toolAbout
UltraFish Plus extends UltraFish into working experiments.
UltraFish Plus is a developmental project page associated with the UltraFish blog, collecting interactive tools and small systems in one clean place.