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Zidooka

I Built a Collection of Small Browser-Based Tools

I recently started building a small collection of browser-based tools.

There is no big launch announcement, no bold claim about “changing the world,” and no complex backend. Just small utilities that solve everyday problems, one by one.

Why I built this site

Over time, I noticed a pattern in my own work.

I often needed very simple tools:

  • quick date calculations
  • small text cleanup utilities
  • lightweight document helpers
  • one-purpose calculators

Most existing tools were either overloaded with features or buried under ads. I wanted something faster, simpler, and predictable.

So I decided to build my own.

What these tools have in common

Every tool on the site follows the same basic rules:

  • Runs entirely in the browser
  • No sign-ups
  • No uploads to a server
  • One clear purpose per page

If a tool cannot explain itself in one sentence, it does not belong here.

Not a product, just utilities

This is not a SaaS in the usual sense.

There are no dashboards, no accounts, and no usage limits. You open a page, do one thing, and leave.

That is intentional.

These tools are designed to be used occasionally, not lived in.

Built gradually, not all at once

I am adding tools slowly.

Some ideas come from my own workflow. Others come from small frustrations that repeat over time.

When a problem shows up more than once, it is probably worth turning into a tool.

Who this is for

These tools are useful if you:

  • prefer simple solutions over complex platforms
  • work with text, dates, or files daily
  • value speed and clarity
  • want tools that “just work” and then get out of the way

If that sounds familiar, you might find something useful here.

The site

The tools are collected here:

https://tools.zidooka.com/

There is no recommended starting point. Just pick what you need, when you need it.

Moving forward

This is a long-term project.

I plan to keep adding small tools whenever a clear use case appears. No roadmap, no pressure—just steady accumulation.

If even a few of these utilities save someone a minute or two, that is enough.

Visit ZIDOOKA Tools

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Zidookaは20代のフリーランスエンジニア(関西在住)が運営しています。業務の自動化やHP制作のご相談も、小さなことから気軽にどうぞ。

About Zidooka

Zidooka is run by a freelance engineer in his twenties based in Kansai, Japan. Feel free to get in touch about workflow automation or website development, even for small requests.

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