Tools that just work.
Twelve free utilities that run entirely in your browser. No uploads, no sign-up: your files never leave your device.
Jump to: PDF tools · Calculators · Image tools · Text tools
PDF tools
Convert, merge and split PDFs without uploading them anywhere.
Calculators
Quick answers, with your keyboard.
Image tools
Convert, resize and shrink images right in your browser.
Text tools
For writing that reads well.
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.