Tool Hub
Streamline Tools, Master Productivity
Designed for young children: alphabet + number typing, 60-second rounds, TTS pronunciation, and Mac keyboard position practice with a colorful pastel scene.
A digital recreation of the traditional Taiwanese temple fortune-telling ritual (Jiaobei), featuring deep red and gold color themes with CSS 3D animations simulating the flipping of fortune blocks.
A cozy static landing-page set for Focus Garden with pastel visual style and productivity vibe.
Players control a green pixel dinosaur, jumping over trees and cars along the way — a simple game to train children's focus and concentration.
An interactive game designed for young children to learn basic touchpad operations through fun digital adventures — clicking, dragging, and sliding through virtual scenes to complete mini-tasks like collecting stars and popping bubbles.
A HEIC to JPG conversion service that provides instant downloads and ensures your data privacy.
A fusion of AI Snake and Self Snake mechanics: Player vs AI (BFS) in a five-round PK scoring battle.
Teach kids to tell time: switch between 12/24-hour formats, drag clock hands, sync with a digital clock, and compare 60/12/24 base differences.
BrightScreen interactive learning tool (built from h2ocloud/BrightScreen repository).
This is an online countdown timer.
A clean and elegant Markdown editor, enabling you to quickly edit and export as high-quality PDF.
A sophisticated text analysis and word counting tool. Optimized for processing large volumes of text with a modern interface. Includes CJK/English mixed analysis, reading time estimation, keyword density analysis, and one-click export.
Convert all pages of a PDF into image files for easy subsequent use.
A real-time network latency (Ping) testing tool built with HTML5, Tailwind CSS, and Chart.js. Features real-time charting, configurable test frequency and alert thresholds, automatic statistics, and cache-busting for accurate results.
An asymmetric encryption interactive learning tool: understand HTTPS, SSH, and cryptocurrency cryptography through simulated public-key encryption and private-key decryption workflows.
Easily read your own EPUB files anytime, anywhere, with a smooth reading experience. Supports multiple devices, ensuring private and secure access to your books.
A PDF compressor that runs entirely in the browser — no upload to external servers needed, ideal for quickly compressing large files.
Extract images from PDF pages and export as a ZIP package or convert to image-based PPTX format.
Lineage 1 (3.80C) 等距投影地圖模擬器。支援正義神殿/邪惡神殿傳送、11種角色切換、物件深度排序遮蔽、A*尋路、傳送特效。
Effortlessly convert multiple EPUB files to TXT in bulk, with a strong emphasis on privacy — no data is saved server-side for secure, private conversions.