Best Kohei Yamane Apps & Games

PFP Maker: Round Photo Crop

Make Round Profile Pictures

Free

Easily create professional, circular profile pictures for social media and gaming platforms. This app offers intuitive controls for precise framing and high-quality export, ensuring your avatar looks sharp and perfectly centered in seconds.

Tile Poster

Split Photos into Poster PDFs

Free

Transform any photo into a large, printable poster by splitting it into a grid and generating a multi-page PDF. Customize grid size, paper format, margins, and overlap for easy assembly. Ideal for creating custom decorations and large-format visuals with standard printers.

Radar Chart Note

Create graphs and charts

Free

Easily create and save radar, spider, or web charts to visualize data across multiple variables. This utility app allows you to plot one or more series of values for comprehensive data representation.

Portrait Blur Background

Easy Background Blur

Free

Easily blur the background of any photo, keeping your subject sharp and clear. Enhance portraits and social media images with adjustable blur strength. Perfect for quick, simple photo editing without complex features.

QuickChart - RelationFlow

Fast & Easy Correlation Maps

Free

Quickly create visual maps of complex relationships and ideas. This app prioritizes speed with intuitive gesture controls for instant node creation and connections. Personalize your maps with images and export them easily for sharing or integration into your workflow.

VideoFit – Vertical Video 9:16

No crop vertical videos

Free

Easily transform horizontal videos into vertical format without cropping. This tool automatically fills the background with a natural blur, preserving your entire video for platforms like TikTok and Instagram Reels. Export ready-to-post vertical videos in seconds with a simple, intuitive interface.