A free tool for the job in front of you.

OneTask has 2,484 small tools to convert, count, calculate and generate. Each one runs in your browser tab, so the answer lands in seconds and nobody wants your email first.

Browse all tools Explore the 14 sections

No sign-up, no upload, it runs in your tab.

New arrivals.

The latest tools to land, newest first.

Anagram Solver

Single and two-word anagrams that use every letter.

Arc Length And Sector Area Calculator

Arc length, sector area, chord and segment from radius and angle.

Area Calculator

Area of eleven common 2D shapes, with the working shown.

Arithmetic Sequence Calculator

The nth term, the sum and the rule, with the working.

Barbell Plate Calculator

Which plates go on each side of the bar, plus warm-ups.

Biker Name Generator

Tough, funny and wild road names for motorcycle riders.

Question in, answer out, three steps.

  1. Find a tool

    Search for what you want to do, such as “word count” or “morse”. Or browse the sections.

  2. Use it in the page

    Type, paste or pick an option. Most results update as you go, so there is no button to press.

  3. Copy or download

    Copy the result, or download it as a file, and carry on with your work.

Go on, poke these four.

They all run on this page. Change an input and watch the answer chase it.

Morse code translator

Text

Type letters, numbers or basic punctuation. Words are split with a slash.

Morse code
... --- ...
Open the Morse code translator

Ratio calculator

Maths

Enter two numbers to simplify the ratio.

Ratio
16 : 9
Decimal
1.78
Open the ratio calculator

Character counter

Text

Counts update as you type.

Characters
0
Without spaces
0
Words
0
Reading time
0 min
Open the character counter

Dice roller

Generators

Choose how many dice to throw, then throw them. Honest dice, mostly.

Open the dice roller

Browse by section.

14 sections, from quick sums to full media editors. Pick the drawer that matches your problem.

Calculators

233 tools Everyday maths, loans, dates, health and DIY. Nothing uploaded.
  • Everyday Maths
  • Loans & Savings
  • Dates & Time
  • Health
  • Home & DIY
  • Unit Converters

Converters

135 tools Units, images, audio, video, documents and code formats, converted in your browser.
  • Units
  • Images
  • Audio & Video
  • Documents
  • Data & Code

Business

39 tools Rates, pricing, profit, invoicing and fees. All client-side.
  • Rates & Pricing
  • Profit & Growth
  • Invoicing & Payments

Text

56 tools Writing, lists, Markdown, HTML, Morse and ciphers.
  • Writing & Editing
  • Lists & Lines
  • Markdown & HTML
  • Ciphers & Alphabets

Developer

206 tools Regex, cron, formatters, JSON, YAML, Base64, hashing, JWT and SEO. All client-side.
  • Dev Utilities
  • Formatters & Validators
  • Data & Encoding
  • Security & Identifiers
  • SEO
  • Accessibility

Design

216 tools Layouts, effects, shapes, components, forms and colour. Live preview.
  • Layout & Spacing
  • Shadows & Motion
  • Shapes & SVG
  • UI Components
  • Forms & Inputs
  • Colour

Media

490 tools Images, audio, video, screen and PDFs. Nothing leaves your browser.
  • Images
  • Audio
  • Video & Screen
  • PDF
  • SVG
  • Simulations & Screensavers

Names

914 tools Random names for people, fantasy races, sci-fi worlds and RPG characters.
  • People
  • Fantasy & RPG
  • Sci-fi
  • Culture & Language
  • Online & Social
  • Business & Brand

Data

21 tools Sourced, dated reference tables you can search, cite and download.
  • Tech Data
  • Everyday Data

Money

37 tools Pay, bills and property calculators that show their working.
  • Pay
  • Bills
  • Property
  • Debt
  • Investing
  • Saving

Time

30 tools Calendar lookups, date arithmetic and live countdowns to the days that matter.
  • Calendars
  • Countdowns
  • Durations
  • Work and Contracts
  • Date Formats
  • Time Zones and Travel

Maths

71 tools Fractions, primes, algebra and statistics, with the working shown.
  • Arithmetic
  • Number Theory
  • Algebra and Geometry
  • Statistics
  • Trigonometry and Calculus

Science

19 tools Physics, chemistry and electronics calculators, with the formula shown.
  • Physics
  • Chemistry
  • Electronics

Word Games

17 tools Scrabble, Wordle, anagrams, crosswords and rhymes, solved.
  • Scrabble & Board Games
  • Puzzle Solvers
  • Anagrams & Rhymes
  • Puzzle Makers

Latest from the blog.

The coffee-to-water ratio, and how to adjust it

What a brew ratio like 1:16 means, the usual ratios for pour-over, French press, AeroPress, moka pot, cold brew and espresso, how many grams go in a mug, and how to fix coffee that tastes weak or bitter.

Read the post →

Drawing a flowchart people can actually follow

The four flowchart shapes that matter, how to write clear steps and decisions, keeping the flow in one direction, handling loops, and when a flowchart is the wrong diagram.

Read the post →

Scatter plot or line chart? How to choose

The difference between a scatter plot and a line chart, when joining the points misleads, what a trend line and correlation coefficient tell you, and what to use when there are too many points to see.

Read the post →

A4, Letter and other paper sizes in pixels

How to turn a paper size into pixel dimensions, the A4 and US Letter sizes at 72, 96, 150 and 300 DPI, which DPI to design at for print or screen, and why changing the DPI setting alone does not change an image.

Read the post →

Questions people ask.

Is it free?

Yes. Every tool on OneTask is free to use. There is nothing to pay for and nothing to unlock.

Do I need an account?

No. Open a tool and use it. Nothing asks you to sign up.

Do my files get uploaded?

Most tools run entirely in your browser, so your text and files stay on your device.

What if a tool is missing?

Search first, because it may go by a different name. If it is still missing, tell us what you need.

Can I suggest a tool?

Yes. Send your idea through the contact page and we read every one.

Find the tool you came for.

All 2,484 are one click away. Or type a few letters and let search do the hard part.

Browse all tools