A growing collection of free online tools

Your online toolbox: calculate, convert and process in seconds

No installation, no signup and no data sent to a server. From percentages and profit to unit conversion, QR codes and text processing — all in one place.

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Popular online tools

Use Abzario's most popular online tools for calculations, conversions, text processing and everyday tasks — fast and free.

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Percentage calculator

Work out a percentage of a number, or what percentage one number is of another.

Finance

Random number generator

New

Generate one number or a list of random numbers in any range.

Security

Word counter

Count words, characters, sentences and paragraphs in any text.

Text

Speed converter

New

Convert km/h, m/s, mph and knots.

Unit conversion

Length converter

Convert metres, kilometres, inches, feet and miles.

Unit conversion

Date difference calculator

New

Days, weeks, months and hours between two dates.

Date & time

Age calculator

New

Calculate exact age in years, months and days from a birth date.

Date & time

Volume converter

New

Convert litres, millilitres, cubic metres, gallons and barrels.

Unit conversion

Percentage decrease calculator

New

Find the exact drop in percent between two numbers.

Finance

No installRuns straight in your browser — nothing to download.

No signupNo account and no email address required.

Instant resultsEvery result is calculated immediately, with no waiting.

Private by designYour data is never uploaded to or stored on a server.

Tool categories

Find the tool you need across our main categories.

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Finance12 tools Maths6 tools Unit conversion7 tools PDF & files10 tools Image10 tools Developer4 tools SEO8 tools QR & barcode1 tool EngineeringComing soon CarComing soon

Language Tools

Online keyboards, typing tests and Latin-to-script transliteration for Persian, Arabic and Georgian — free, in your browser.

View all language tools

Persian KeyboardIf Persian isn't installed on your computer or phone, this online keyboard lets you write Persian right in the browser. It always inserts the correct Persian letters (ی and ک) and you can copy the result with one click.Open tool Persian Typing TestYou get a natural Persian paragraph to copy. Everything you type is compared with the target text, and your speed and accuracy are calculated as you go.Open tool Finglish to PersianFinglish means writing Persian with Latin letters, such as “salam chetori”. This tool turns that back into Persian script. It is transliteration, not translation.Open tool

Why Abzario?

Fast and lightweight

No intrusive ads and no waiting — results appear instantly.

Privacy first

Everything is processed in the browser and nothing is stored.

Mobile friendly

A responsive layout that works on any screen size.

Always growing

The architecture is built to host hundreds of new tools.

Frequently asked questions

What is Abzario?

Abzario is a free online toolbox that offers calculators, unit converters, text and file tools, QR generation and other everyday utilities — all running directly in your browser.

Is Abzario free to use?

Yes. Every tool is free to use, with no sign-up, email address or software installation required.

Is my data stored?

For most tools your input is processed entirely in your browser and is never sent to our servers. The currency converter fetches live rates from a server, and the AI assistant sends your question to a secure backend to generate a reply. None of your inputs are stored.

Do the tools work on mobile?

Yes. Every page is fully responsive and behaves the same on phones, tablets and desktops.

Are new tools added?

Yes. Abzario is expanded continuously and newly published tools appear in the “New arrivals” section.

Quick access to tools

Direct links to all Abzario categories and tools.