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ToolsOnDuty - free online tools
801+ tools · always free

Every tool, in one place

The complete A-to-Z directory of free online tools on ToolsOnDuty, grouped by category. Search for what you need, or jump straight to a category. Every tool is free, needs no sign-up and runs right in your browser, so your data stays private on your device.

Free tools
801+
Free tools
Categories
22
Categories
Runs in browser
100%
Runs in browser
No sign-up ever
$0
No sign-up ever
Explore the e-commerce seller toolkitExplore the LinkedIn professional toolkitExplore the Instagram creator toolkitExplore the YouTube creator toolkit

Text Tools59

Count, clean, convert and transform text.

Developer Tools51

Private browser tools to format, validate, encode, parse, compare and debug code or structured data without uploading it.

Converters46

Convert between units, formats and values.

Generators22

Generate passwords, UUIDs, tokens, mock data and more.

Image Tools56

42 private browser tools to edit, optimize, create, scan and deliver images without uploads or watermarks.

CSS & Design29

Build gradients, shadows, easing curves and colour palettes for the web.

PDF Tools53

53 private browser tools to organize, protect, unlock, repair, inspect, sanitize, optimize, label, mix, bookmark, manage attachments, edit, convert, sign, scan, OCR and extract PDFs without uploads or watermarks.

Math Calculators22

Solve everyday, scientific and number problems with accurate calculators.

Date & Time Calculators35

Calculate ages, dates, durations, working days and time zones.

Health & Fitness11

Calculate BMI, calories, body fat, ideal weight and other health numbers.

Finance Calculators21

Calculate loans, interest, investments, discounts, taxes and everyday money problems.

Security & Cryptography44

Generate hashes, passwords, tokens and work with JWTs and ciphers.

Typing Tools41

Learn touch typing, test your speed and type any language phonetically.

Student & Education36

Calculate grades, plan study, create learning material and manage classroom work.

Job & Career16

Build applications, prepare for interviews, compare offers and manage your job search.

Social Media31

Create captions, hashtags, bios, video copy and organized content plans.

Business & Marketing61

Create commercial documents, calculate pricing and plan practical marketing work.

Productivity & Time24

Timers, a stopwatch, Pomodoro, an alarm, a notepad and a to-do list.

Random & Fun27

Spin a wheel, roll dice, flip a coin, pick teams and make random decisions.

Browser Games54

Play word, math, logic, memory and classic browser games.

IP & Network Tools37

Check public IP details, DNS, WHOIS, ASN, subnets and CIDR ranges.

Web & SEO24

Build robots.txt, redirects, meta tags, UTM links and structured data.

Why use ToolsOnDuty?

ToolsOnDuty brings together 801+ everyday online tools in one fast, clean place, so you do not have to hunt across a dozen different websites cluttered with pop-ups and forms. From formatting JSON and generating strong passwords to converting colours, calculating dates and typing in other languages, the tool you need is only a search away.

Everything is genuinely free. There is no account to create, no trial that expires and no feature locked behind a paywall. Open a tool, get your result, copy it and move on.

How these tools work

Unlike many online utilities, ToolsOnDuty tools run entirely in your browser using JavaScript. When you paste text, upload a file or enter a value, it is processed on your own device and is never sent to a server. That makes the tools fast, and it keeps sensitive content such as tokens, passwords and private documents completely private.

Because there is no server round-trip, most tools give you a result instantly as you type. They also work on any modern browser and adapt to phones, tablets and desktops, so you can bookmark this page and reach any tool in seconds.

Frequently asked questions

Are all the tools really free?

Yes. Every tool on ToolsOnDuty is 100% free to use with no sign-up, no trial and no hidden limits. You can use them as many times as you like.

Do I need to create an account?

No. You can open any tool and start using it straight away. There is no login, email or registration required.

Is my data safe? Where does it go?

Your data never leaves your device. Every tool runs entirely in your browser using JavaScript, so the text, files and values you enter are processed locally and are never uploaded to a server.

Do the tools work on mobile?

Yes. Every tool is responsive and works on phones, tablets and desktops. You can bookmark this page to reach any tool quickly.

Do I need to install anything?

No installation is needed. The tools work directly in any modern web browser such as Chrome, Edge, Safari or Firefox.