Bulk PNG to JPEG Converter (saruwakakun.com)
A browser-based bulk PNG-to-JPEG converter. Offers four quality levels, supports multiple files, and downloads results as a ZIP archive. Processed locally with no server uploads.
Online Roulette (saruwakakun.com)
A free online roulette tool ready to use the moment you open it. Supports item customization, URL sharing, and fullscreen mode. Great for YouTube live streams or large-group events.
Age Reference Table (saruwakakun.com)
A quick-reference table showing the Western year, Japanese era (Taisho, Showa, Heisei, Reiwa), and age all in one list. Includes a printable A4 page layout.
2048 (toolpods.io)
Browser-based version of the 2048 puzzle game. Slide blocks to merge them and reach the 2048 tile.
AI Model Comparison (toolpods.io)
Compare responses from multiple AI models side by side. Submit the same prompt to GPT, Gemini, Claude, DeepSeek, and more to analyze differences in real time.
AI Email Writer (toolpods.io)
AI-powered tool to automatically generate professional business email drafts based on your input.
Honorific Converter (toolpods.io)
AI tool that converts casual Japanese text into polite honorific (keigo) expressions for business use.
AI Press Release Writing Support (toolpods.io)
Enter product information and AI automatically generates a press release draft.
AI Social Filter (toolpods.io)
AI-powered tool to check text for inappropriate expressions or socially problematic content before posting on social media.
AI Tweet Generator (toolpods.io)
Enter a keyword or theme and AI generates tweet content for you.
Animation CSS Generator (toolpods.io)
GUI tool to generate CSS animation code. Set animation type, duration, easing, and more to generate ready-to-use CSS.
