OumaShu (櫻滿集)
A directory site featuring 35 free online tools across 12 lines covering images, video, audio, text, learning, and games — all usable directly in the browser, with nothing to install and no account required.
About OumaShu (櫻滿集)
OumaShu (櫻滿集) is a curated directory of free online tools, featuring 35 tools grouped into 12 lines covering images, video, audio, text, learning, games, and more. Every tool opens directly in your browser with nothing to install and no account required. Most of the image, text, and audio tools custom-built for OumaShu process files locally in the browser, so files never leave your device; tools that inherently require a server (such as AI conversation practice and temporary chat rooms) send data to their respective servers. Of the tools in the directory, 29 are projects by developer Rollkey, while the other 6 are third-party websites, marked as "3rd", that follow their own privacy policies.
Best for
Best use cases
Quickly compress images, add watermarks, take screenshots, create memes, and other image processing
OCR text recognition, or processing text and audio content
Practice a language with AI conversation, or spin up a temporary chat room
Find free mini-games or learning tools to pass the time
Features
Subway-map-style tool directory
The 35 tools are grouped into 12 lines and browsed like a subway map, with each tool opening directly in the browser.
Local processing
Most of the image, text, and audio tools custom-built for OumaShu process files locally in the browser, so files never leave your device.
AI conversation practice and temporary chat rooms
Includes features that require a server, such as AI conversation practice and temporary chat rooms, which send data to their respective servers.
Third-party tool labeling
6 of the tools in the directory are third-party websites, marked as "3rd", and follow their own privacy policies.
Pros
- All tools are free, with no account registration required
- Most in-house tools process files locally in the browser, so files are never uploaded
- Tools work instantly — nothing to install
- Third-party listings are clearly labeled, so sources are transparent
Cons
- Some tools (such as AI conversation practice and temporary chat rooms) send data to servers, so not everything is processed locally
- The 6 listed third-party websites follow their own privacy policies, and their data handling differs from the site's in-house tools