About BentoUtils
Small, friendly tools for
oddly specific jobs.
We make free calculators and converters that run inside your browser. You type in your numbers or drop in a file and get the answer right there. There's no account to make, and nothing gets uploaded.
How it works
Every tool works the same way, so once you've used one you know them all.
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Drop or paste
Drop in a file, paste some text, or type your numbers. Nothing gets sent anywhere.
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Your browser does the work
The math runs on your own device, so you don't wait on an upload or a server.
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Save or copy
Download the result, copy it, or print it. That's it.
Why we built this
Most people have a few small jobs that keep coming back. Working out how much concrete to order, stripping the location out of a photo, nudging subtitles two seconds later.
The tools for these jobs are often a slow desktop install, a monthly subscription for something that takes five seconds, or an old page covered in ads that sends your file to a server you know nothing about.
We wanted something simpler. Each of our tools does one job and runs entirely in your browser. We don't ask for your email, and we never see your files.
Browse all tools →-
Private by default
Your files stay on your device. We can't see them because they're never sent to us.
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Quick
Nothing waits on a server, so results show up as you type.
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One job each
Each tool does one thing. You won't find upsells or sign-up screens.
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Works anywhere
Any modern browser on a phone or a desktop, with nothing to install.
A tool for every niche
Electronics, homebrewing, tattoo stencils, race pacing. Here are a few picks from each corner of the site.
Privacy & Files
Developers
Electronics
Creative
Makers & DIY
Got something to work out?
Pick a tool and go. You don't need to sign up.
Browse all tools →