Free online utility tools

Useful tools for documents, calculations and everyday work.

Convert documents, prepare spreadsheets and use practical guides and free work templates alongside everyday converters and PDF tools.

Tool library

All tools in one place

Choose a category or search for a specific utility.

Finance

💱

Currency Converter

Convert currencies with live reference rates when available.

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Time & Date

🌍

Time Zone Converter

Compare a time across major world time zones.

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📅

Date Difference Calculator

Calculate elapsed days between two dates.

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🎂

Age Calculator

Calculate your exact age in years, months and days.

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Document Converters

Converters

↔

Unit Converter

Convert length, mass, temperature, volume and more.

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PDF Tools

📎

Merge PDF

Combine multiple PDF files into one PDF in your browser.

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✂️

Split PDF

Extract selected pages from a PDF into a new file.

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🗜️

Compress PDF

Reduce PDF size by rasterizing pages with adjustable quality.

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🖼️

Images to PDF

Turn JPG, PNG and other browser-readable images into a PDF.

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🖼️

PDF to Images

Render PDF pages as downloadable PNG images.

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🔄

Rotate PDF

Rotate selected PDF pages and download a new file.

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📄

Extract PDF Pages

Choose pages and create a new PDF from them.

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🔢

Add PDF Page Numbers

Add simple page numbers to a PDF.

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More Global Converters

⛽

Fuel Economy

Compare L/100 km, km/L and approximate mpg.

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⏱️

Time Duration

Calculate elapsed time, including overnight periods.

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📅

Date Add Calculator

Add or subtract calendar days from a date.

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Image Tools

🗜️

Compress Image

Resize and compress JPG, PNG or WebP images in your browser.

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↔️

Resize Image

Resize an image by width, height or percentage.

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🔁

Convert Image

Convert browser-supported images to JPG, PNG or WebP.

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🌍 Global access

Built for users around the world

UniConvertHub is designed as a country-neutral online utility platform. Use calculators, document tools, currencies, measurements and time zones from any supported modern browser.

International currencies

Convert a broad range of major currencies and use your browser's number formatting for familiar results.

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Metric & imperial

Work with common international measurement systems for length, weight, temperature, area and data.

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Core tools do not require an account. Availability of live exchange rates and browser-based file processing depends on the services and browser capabilities used by a visitor.

Spreadsheet and document converters

Excel, Word and PDF converters

Move data between common office formats. Conversion can change layout, so always review the output.

📊

PDF to Excel

Extract selectable PDF text and simple tables into a spreadsheet.

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📝

Word to Excel

Extract DOCX tables or text lines into editable spreadsheet cells.

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📄

Excel to Word

Export worksheet values as editable tables in a Word-readable document.

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📑

Excel to PDF

Create a PDF version of worksheet data for sharing or printing.

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Additional resources

Career guides and free work templates

Learn to prepare a CV, write a targeted cover letter, search job vacancies and download editable templates for office workflows.

CV / Resume Writing

Structure your experience, highlight evidence and tailor your CV to a vacancy.

Read the guide →

Cover Letter Examples

Learn a practical structure and how to connect your skills to a real job description.

Read the guide →

Find Job Vacancies

Search trusted job sources, verify listings and track applications safely.

Read the guide →

Free Excel & Word Templates

Download financial, invoice, order, data-entry, inventory, CV and cover letter templates.

Browse free templates →
Free downloads

Free Excel templates for everyday business tasks

Download editable starter spreadsheets for finance, orders, invoices, data entry and inventory. These are additional resources alongside our converters and PDF tools.

📊

Advanced Business Financial Dashboard

Track revenue, costs, margins and monthly trends.

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📦

Simple Track Inventory List — Updated

Use the updated version for stock value and reorder checks.

View and download →

See all free templates, including CV and cover letter files →

PDF and document tools

UniConvertHub includes browser-based PDF utilities for merging, extracting, rotating, converting and preparing documents. Files are processed locally in supported tools, so you can work without creating an account.

Built for practical everyday tasks

UniConvertHub brings common calculations, conversions and document utilities together in one place. Each tool is designed to give a clear input, a clear action and an understandable result.

Privacy-conscious by design

Core calculators run in the browser. PDF and image tools are designed around local browser processing where the browser APIs and libraries support it. Always review the privacy and security needs of sensitive documents before using any online tool.

Important limitations

Currency rates are informational and can differ from your bank or provider. Financial calculators are estimates, not professional financial advice. PDF processing depends on browser capabilities and the structure of a file. When a tool produces a downloadable file, check the result before relying on it.

How UniConvertHub helps

One place for calculations, conversions and everyday documents

Online tasks often require several small steps: checking a percentage, converting a measurement, estimating a payment, changing a document format or preparing a PDF. UniConvertHub brings these common jobs together so you can move from a question to a usable result without installing a separate desktop program for every task.

The calculators are designed for quick estimates and transparent inputs. The converters cover common metric and imperial units, international currencies and time zones. The document area focuses on practical browser-based workflows such as merging, splitting, rotating, compressing and converting PDF files. Where a result depends on an external service or browser capability, the page explains that limitation instead of presenting the result as guaranteed.

For work

Estimate salaries, compare percentages, prepare documents, convert measurements and organize PDFs before sending them to colleagues or clients.

For study

Check ratios, averages, percentages, units, dates and basic financial calculations while keeping the inputs visible and easy to review.

For everyday life

Work out discounts, tips, savings projections, dates, ages, time differences and common household measurements.

How to get better results from an online calculator

Start by checking the unit and time period used by the input fields. A monthly rate is not interchangeable with an annual rate, and kilometres are not the same as miles. For financial estimates, use realistic assumptions and treat the output as an estimate rather than a promise of what a lender, bank or investment provider will charge or pay.

For document tools, keep the original file until you have inspected the downloaded result. PDF and Word files can contain fonts, images, forms, tables or scanned pages that behave differently across software. A quick visual check of page breaks, text selection and images can prevent mistakes when a converted document is used professionally.

Browser-based processing and privacy

Many UniConvertHub calculations happen directly in the browser. Several file tools are also designed to process files locally using browser APIs and client-side libraries. This can reduce the need to send a file to a remote processing server, but it does not remove every privacy consideration: third-party libraries may be loaded from content-delivery networks, and you should always follow your organization's rules for sensitive or confidential documents.

Common questions

Do I need an account?

No account is required for the core calculators and converters. File processing depends on the individual tool and the browser being used.

Are the results exact?

The mathematical formulas are deterministic for the inputs provided, but financial results are estimates and currency rates are reference rates. File conversions can also vary with document structure and browser capabilities.

Why does a currency result sometimes differ from my bank?

Currency tools use reference exchange-rate data. Banks, card networks and money-transfer providers can apply their own rates, spreads, commissions and fees.

What should I do after converting a document?

Open the downloaded file and check the pages, formatting, images, text selection and filename before sharing or submitting it.

Explore the UniConvertHub guides

Our practical guides explain how common calculations and document conversions work, including formulas, examples, limitations and checks you can perform before relying on a result.

About the tools

How to choose the right UniConvertHub tool

UniConvertHub brings calculations, unit conversions and document utilities into one place. The tools are intended for everyday tasks: checking a percentage, comparing measurements, planning a repayment scenario, preparing a document or understanding a number before making a decision. Each tool is designed around a clear input-and-result workflow so that the calculation can be checked rather than hidden behind an unexplained answer.

Calculators are estimates built from your inputs

Financial results from third-party sources and calculators depend on assumptions. Use any estimate as a planning aid, then verify the official terms and information that apply to your situation.

Converters preserve the quantity, not the context

A unit conversion changes how a measurement is expressed. It does not decide whether the original measurement is accurate, whether a particular unit is legally required, or whether a product specification uses a special definition. For example, gallons can refer to different systems, and digital storage can be described using decimal or binary conventions. Always keep the original unit beside the converted value when accuracy matters.

PDF and image tools are designed around practical document tasks

The document tools cover common jobs such as merging, splitting, rotating, compressing, extracting pages and converting between document formats. Browser-side processing is used where supported by the tool. File size, browser memory and document complexity can affect processing, so keep an original copy of important files and check the output before sharing it.

Why results should be checked

A calculator can perform correct arithmetic on incorrect inputs. Before using a result, check the unit, date, rate, reference value and rounding. For health, financial, legal or regulatory questions, treat the tool as an information aid rather than a substitute for an appropriate professional or official source.

A simple workflow for reliable results

First identify the question you need to answer. Next choose the tool whose inputs match that question. Enter values in the requested units, review the assumptions and compare the result with a rough mental estimate. If the number looks surprising, check the inputs before assuming the calculator is wrong. Finally, record the assumptions if the result will be used later.