Utilitiz
Free · Private · No sign-up

Tools that just work.

Browser-based utilities that run entirely on your device, calm sound apps for focus, and plugins for Obsidian and Firefox. No accounts, and your files never leave your computer.

Browse the tools Sound & focus Obsidian plugins

What's here

Four corners of the site. Everything is free.

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12 tools · in your browser

Utility tools

PDF converter, merger and splitter. Calculators. Image converter, resizer and compressor. Word counter, case converter and a readability checker. Nothing is uploaded.

Browse the tools → ≋
Web apps · Windows soon

Sound & focus

Static FM, seven colours of noise with a breathing pulse, and Hi-Fi Tuner, internet radio on a wireframe globe. Both run in your browser and work offline.

Listen → ◆
6 plugins · 1 theme

For Obsidian

Noise, your own music, radio, old films and Music For Programming in your sidebar, plus the Static Aurora theme that glows with what you're playing.

See the plugins → ◎
4 add-ons

For Firefox

The same players in your browser toolbar: Static FM, Hi-Fi Tuner, MFP Player and Bronois brown noise.

See the add-ons →

Utility tools

Free, private, no sign-up. Files never leave your device. All tools →

Text

Word CounterWords, characters, reading timeCase ConverterUPPER, lower, Title, SentenceGrammar & ReadabilityHard sentences, passive voice, adverbs

Coming soon

Being built now.

Static FM for WindowsThe noise app as a proper Windows app, with nature sounds, machines (fan, vinyl crackle) and focus sessions. One-time price, no subscription.Windows
AuroraEndless ambient music generated live on your computer, with four moods and rain, wind and air textures.Obsidian
Plain ProseReadability highlights for your writing: long sentences, passive voice, adverbs and simpler words.Obsidian

What is Utilitiz?

A growing collection of free, browser-based tools. Every tool runs entirely on your device: no files, text or data are sent to a server.

There's no account to create, nothing to subscribe to and no software to install. Open a tool and start working.

Why use it?

  • Private by design. Nothing is uploaded; your files stay on your device.
  • No sign-up. Open any tool and use it straight away.
  • Free. Every tool, with no hidden costs.
  • Works everywhere. Any modern browser, on any device.
  • Always growing. New tools are added regularly.

Questions

Are the tools really free?

Yes. The site is supported by advertising. There are no premium tiers, subscriptions or hidden charges. The Obsidian plugins, theme and Firefox add-ons are free and open source too.

Are my files safe?

Yes. Everything is processed in your browser with JavaScript. Files are never uploaded, nobody else can see them, and they're gone when you close the tab.

Do I need an account?

No. There's no account system at all: no email, no password, no sign-up.

Which browsers work?

Chrome, Firefox, Edge, Safari and Opera, on Windows, Mac, Linux, iOS and Android. Internet Explorer isn't supported.

Is there a file size limit?

No set limit. The only limit is your device's memory.

How often are new tools added?

Regularly. Utilitiz started with PDF converters and now has calculators, image tools, text tools and sound apps, with more on the way.

Do the plugins and add-ons collect data?

No. They have no analytics or telemetry, and settings stay on your computer. Where one needs the internet (radio, films, Music For Programming), its README lists exactly which sites it talks to.

Support & contact

If something here helps you, you can buy me a coffee. Questions, ideas or problems: email hello@utilitiz.net or open an issue on GitHub.