Toolhub is a growing collection of free web tools for the small calculations and conversions that come up in everyday life — from checking which pack is cheaper to counting the characters in an essay. Every tool runs the moment you open it: no installs, no accounts, no waiting.

Finding the right tool

Browse the directory above, grouped into categories like Finance & Shopping, Health & Body, Units & Conversion, Date & Time and Developer Tools. In a hurry? Type a keyword into the search box — "unit price", "BMI", "timer" — and the list filters as you type. Tap any tool to open it on its own page, and switch the whole site to any of 14 languages from the header.

Private by design

Every Toolhub tool is a pure static page: whatever you type is processed entirely inside your own browser and is never uploaded to a server. There are no sign-ups and no numbers to hand over, so you can work out a salary, a loan or a private bill with peace of mind. Your theme and language choices are the only things saved, and they stay in this browser's local storage.

Free, and always growing

All tools are completely free, with no subscriptions or hidden fees. New tools are added regularly and appear on this page the moment they launch, so it is worth bookmarking. If a tool you need is missing, chances are it is already on the way.

How to use the tools

Unit Price Calculator — how to use it

Standing in a store wondering whether the 500 g detergent or the 1.2 kg one is the better deal? Enter each product's price and size, and the calculator converts both to a price per 100 g so you can compare instantly. For bundles like "buy two, get one free", enter the number of items in the bundle and it computes the true price for the total volume. No sign-up, no install — and your numbers never leave your browser.

Character Counter — how to use it

Writing against a character limit — a cover letter, an essay, a social post, or a meta description? Paste your text and you instantly see counts with and without spaces, plus how much room is left against your target. It also shows byte counts (UTF-8 and EUC-KR) for systems that limit by bytes rather than characters. Everything is calculated inside your browser; nothing is sent to a server, so sensitive text is safe to paste.

Why Toolhub

No sign-up, always free

Every tool is completely free and works without an account. Just open it and start — no installs, no subscriptions, no hidden fees.

Runs in your browser

All the work happens on your own device. Whatever you type is processed inside your browser and never leaves it, so your data stays private.

Maintained weekly

Each tool launches only after passing a QA checklist, and the whole collection is reviewed every week so calculations stay correct and links keep working.

Frequently asked questions

What is Toolhub?

Toolhub is a collection of free online tools — like the unit price calculator — for everyday tasks. There is nothing to install and no account to create: open your browser and it just works. Each tool is built to solve one problem, fast.

Are all the tools free?

Yes. Every tool listed on Toolhub is completely free — no payments, no subscriptions. If a paid feature ever appears, it will be clearly labeled on the tool's page.

Is my data sent to a server?

No. Toolhub tools are pure static pages: your input is processed entirely inside your browser and never transmitted. Convenience settings such as theme or language are stored only in this browser's localStorage.

How often are new tools added?

We ship new tools at a pace of two to three per week, starting from the most useful ideas. New tools appear on this page as soon as they launch, so check back from time to time.