GitPedia

Omatsuri

PWA with 12 open source frontend focused tools

From rtivital·Updated June 17, 2026·View on GitHub·

Omatsuri is a progressive web application with 12 open source frontend focused tools. Omatsuri translates to «festival» from Japanese (お祭り) and here we have a small festival of applications. It was built with strong respect to your privacy – you will never see ads and it does not include analytics services (or actually any services at all). You are highly encouraged to explore source code and use it in your projects. The project is written primarily in TypeScript, distributed under the MIT License license, first published in 2020. It has gained significant community traction with 2,970 stars and 258 forks on GitHub. Key topics include: application, css, frontend, react, svg.

Latest release: 2.0.1May 2021
May 24, 2021View Changelog →

Omatsuri app

Logo

Omatsuri is a progressive web application with 12 open source frontend focused tools. Omatsuri translates to «festival» from Japanese (お祭り) and here we have a small festival of applications. It was built with strong respect to your privacy – you will never see ads and it does not include analytics services (or actually any services at all). You are highly encouraged to explore source code and use it in your projects.

Key features

  • Fast non-blocking computations with web workers
  • No tracking, no ads, no other server connections – everything runs in browser only
  • Full offline support
  • Dark theme support
  • All-in-one application for everyday tasks

Included Applications

  • CSS Triangle Generator
  • Color Shades Generator
  • Gradient Generator
  • Page Dividers Generator
  • SVG compressor
  • SVG to JSX converter
  • Base64 encoder
  • Realistic Fake Data Generator
  • HTML/CSS Symbols Collection
  • Lorem/Samuel/Poke Ipsum Generator
  • CSS Cursor Properties
  • JavaScript Events Keycodes

Local development

To get started with application locally use these commands:

sh
# Install dependencies yarn # Start application, browser will open automatically npm start

Contributors

Showing top 8 contributors by commit count.

View all contributors on GitHub →

This article is auto-generated from rtivital/omatsuri via the GitHub API.Last fetched: 6/17/2026