Free online tools for the classroom, home and office
Dice, a spinning wheel, timers, calculators, printable puzzle makers, PDF and photo tools, and Hebrew tools. They run in your browser, with no sign-up.
🎲 Games, dice and random pickers
Roll the dice online: free virtual dice roller
Roll one to six virtual dice for board games, math games and the classroom. Fair, secure random rolls, the total added up and your last rolls listed.
Open the tool →D&D dice roller: d4, d6, d8, d10, d12, d20 and d100
Roll every Dungeons & Dragons die online: d4 to d20 and the percentile d100, several dice at once, with your modifier added to the total.
Open the tool →Polyhedral dice roller: d4 to d20
Roll a d4, d6, d8, d10, d12 or d20 online, one to three at a time. Great for role-playing games and for probability lessons in math class.
Open the tool →Backgammon dice roller online
Two fair dice for backgammon, with a reminder to move four times whenever you roll doubles. Works on a phone in the middle of the table.
Open the tool →Monopoly dice roller with doubles counter
Lost the Monopoly dice? Roll two dice online, see the total and let the page count your doubles, so you know when it is time to go to jail.
Open the tool →Story dice: picture dice for storytelling
Roll three to five picture dice and make up a story that uses every picture. A fun speaking, writing and creativity game for kids and families.
Open the tool →Emotions dice: a feelings game for kids
Roll a feeling, from happy to frustrated, and talk about it. A gentle social-emotional learning activity for the classroom circle or the dinner table.
Open the tool →Random number generator
Pick a random number in any range, or draw many at once with no repeats. Fair and simple, for raffles, games, lotteries and calling on students.
Open the tool →Flip a coin online: heads or tails
Flip a virtual coin to settle any choice: heads or tails, with a fair 50/50 chance and a running count of every flip. A neat probability demo too.
Open the tool →Spin the wheel: random name picker
Type names, prizes or tasks, spin the colorful wheel and let it choose. Remove each winner for fair turns in class, raffles and party games.
Open the tool →Random team generator: split names into groups
Paste a list of names and split it into fair random teams or groups in one click, by number of teams or people per team. Copy the result to share.
Open the tool →Spin the bottle online
A virtual bottle for party games and classroom turns. Add the players in seating order and the page shows exactly whose name the bottle points to.
Open the tool →True or false game: fun facts for kids
Surprising statements about animals, space, the body, food and the world. Guess true or false, score points and play with up to four players or teams.
Open the tool →Riddles for kids with answers
Classic riddles and brain teasers with hidden answers. Think it over, reveal the answer and keep score. Great for car trips, classrooms and parties.
Open the tool →Jokes for kids: a random clean joke
Press the button for a random clean joke for kids. Read the question, guess the answer, then reveal the punchline. A fun start to any lesson.
Open the tool →What should I draw? Random drawing ideas
Get a random drawing idea at three levels, from easy pictures for little kids to creative challenges, with optional twists like using only three colors.
Open the tool →Secret code maker: ciphers for kids
Encode and decode secret messages with the Caesar cipher, Atbash, number codes, Morse code and backwards writing, then print the message with its key.
Open the tool →Name, Place, Animal, Thing: letter and timer
Play the classic word game: draw a random letter, start the timer and write a word for every category. Includes printable score sheets.
Open the tool →⏱️ Timers and scoreboards
Online countdown timer with alarm
A big, clear countdown timer for the classroom, games and cooking. Quick presets, any minutes and seconds, an alarm at zero and a full screen mode.
Open the tool →Online stopwatch with laps
Start, pause and record laps to the hundredth of a second, see the fastest and slowest laps, copy the times and show it full screen for races.
Open the tool →Online scoreboard for teams
Keep score for up to eight teams in quizzes, classroom games and family game night. Big + and − buttons, custom points per tap and full screen.
Open the tool →🖨️ Make your own printables
Word search maker: free printable puzzles
Type your own words or pick a theme and print a word search on A4, with an answer key. Perfect for spelling lists, vocabulary and parties.
Open the tool →Bingo card generator: printable bingo cards
Make printable bingo cards with numbers, pictures, sight words or your own list. Every card is different, plus a built-in caller to draw items.
Open the tool →Crossword puzzle maker: your words and clues
Type words with clues and get a printable crossword with numbered clues across and down, plus an answer key. Great for vocabulary review.
Open the tool →Spelling worksheet maker for kids
Type this week's words and print worksheets: tracing, copying, missing letters, unscrambling and matching words to pictures. Free, no sign-up.
Open the tool →Scavenger hunt maker: printable checklists
Build a printable scavenger hunt for home, the garden, a party or the classroom. Start from a ready list like a rainbow hunt, or write your own.
Open the tool →🧮 Calculators
Scientific calculator online
A free scientific calculator with exact fractions and roots, step-by-step explanations, equation solving, graphs and statistics. No ads, no sign-up.
Open the tool →Percentage calculator: percent of, change and discount
Work out a percentage of a number, what percent one number is of another, the percentage increase or decrease, and prices before and after a discount.
Open the tool →Fraction calculator with steps
Add, subtract, multiply and divide fractions and mixed numbers. Answers are simplified, shown as a mixed number and a decimal, with every step explained.
Open the tool →Quadratic equation solver with steps
Solve ax² + bx + c = 0 with the quadratic formula: the discriminant, real or complex roots and the vertex of the parabola, shown step by step.
Open the tool →Grade average calculator, simple or weighted
Average your grades out of 100, as a simple average or weighted by credits or study units. Add as many subjects as you need and see the result at once.
Open the tool →BMI calculator for adults, metric or imperial
Work out your body mass index from weight and height, in kilograms and centimetres or pounds, feet and inches, with the standard adult ranges explained.
Open the tool →Tip calculator and bill splitter
Work out the tip, the total and each person's share of the bill. Choose a tip percentage, split between friends and round shares up if you like.
Open the tool →VAT calculator: add or remove VAT and sales tax
Add VAT or sales tax to a net price, or take it out of a price that includes it. Any rate, with presets for Israel, the UK, Europe, Canada and Australia.
Open the tool →Currency converter with daily exchange rates
Convert between dollars, euros, pounds, shekels and dozens more currencies at the daily reference rate. Keeps working with the last rates when offline.
Open the tool →📅 Time, dates and text
Hours calculator: add time and work hours
Add and subtract hours and minutes, find the time between two clock times even past midnight, and total a timesheet with breaks and an hourly rate.
Open the tool →Date calculator: days between dates
Count the days, weeks and months between two dates, add or subtract days from a date, and see the day of the week and the Hebrew date.
Open the tool →World clock and time zone converter
See the current time in cities around the world and convert a meeting time between time zones, with daylight saving time taken into account.
Open the tool →Age calculator: how old am I in days?
Your exact age in years, months and days, how many days you have been alive, the weekday you were born and how many days are left to your birthday.
Open the tool →Word counter: words, characters and reading time
Count words, characters with and without spaces, sentences, paragraphs and reading time, in English or Hebrew. Your text never leaves your browser.
Open the tool →Touch typing course, free
Learn to type with ten fingers: eleven short lessons from the home row to whole sentences, a keyboard that shows which finger to use, and speed and accuracy scores.
Open the tool →🔤 Hebrew and Jewish calendar tools
Hebrew keyboard online, with niqqud
Type Hebrew with your mouse or your normal keyboard, even with no Hebrew installed. Add niqqud and symbols, copy in one click, with finger colors for touch typing.
Open the tool →Add niqqud to Hebrew text automatically
Paste Hebrew text and get it back with vowel points (niqqud). Tap any word to choose another reading or correct it, then copy the result. Free.
Open the tool →Fix text typed in the wrong keyboard layout
Typed akuo instead of שלום? Paste text typed with the wrong Hebrew or English keyboard layout and get the right words back, fixed automatically.
Open the tool →Gematria calculator: Hebrew letter values
Type a Hebrew name, word or phrase and get its gematria value, with the number of every letter from Aleph (1) to Tav (400). Final letters included.
Open the tool →Hebrew birthday and bar/bat mitzvah date calculator
Find your Hebrew date of birth, your next Hebrew birthdays and the bar or bat mitzvah date with its Torah portion in Israel and abroad.
Open the tool →📁 PDF, photos and QR codes
Free PDF tools: merge, split, compress and sign
Merge PDFs, split a file, shrink it, turn images into a PDF, sign a form and convert to or from Word. It all runs in your browser, so files never leave your device.
Open the tool →Merge PDF files into one, free
Combine several PDF files and photos into a single PDF. Drag the pages into order and download. Free, no watermark, and files stay on your device.
Open the tool →Split a PDF into pages or ranges, free
Split a PDF into single pages or by ranges such as 1-3, 5 and download everything in one ZIP. Free, and the file is never uploaded to a server.
Open the tool →Compress a PDF to send by email, free
Make a heavy PDF smaller with three compression levels and see the new size straight away. Ideal for email, messaging and upload forms.
Open the tool →Convert images and photos to PDF, free
Turn JPG and PNG images and phone photos into one PDF, on A4 pages or at their own size. No sign-up, no watermark, and photos stay on your device.
Open the tool →Convert PDF to JPG or PNG images, free
Save every page of a PDF as a high-quality JPG or PNG image and download them in a ZIP. Free, and it all happens in your browser.
Open the tool →Sign a PDF online without printing
Sign a PDF with your finger or mouse, add your name, the date or any text, place it on the page and download. No printer or scanner needed.
Open the tool →Rotate, delete and reorder PDF pages
Reorder PDF pages by dragging, rotate upside-down pages, delete the ones you do not need and save a new file. Free, with nothing to install.
Open the tool →Convert PDF to Word (docx), free
Convert a PDF into an editable Word document with paragraphs, headings and lists, or keep its exact look with each page as an image.
Open the tool →Convert Word to PDF online, free
Turn a Word document (docx) into a PDF right in your browser, even on a phone, and combine it with other PDF files. The file never leaves your device.
Open the tool →Free online photo editor: compress, crop, collage
Seven simple photo tools: compress, crop, collage, blur faces, add text, convert HEIC to JPG and remove a plain background. Photos stay on your device.
Open the tool →Compress and resize photos, free
Make photos smaller for email and forms: choose a width, a quality or a target size in KB, and see the size before and after. Many photos at once.
Open the tool →Crop a photo online: square, story, A4
Crop a photo by dragging, freely or at a fixed ratio such as square, 4:5, story 9:16, 16:9 or A4, and rotate or flip it. Free and private.
Open the tool →Photo collage maker: 2 to 9 photos
Combine 2 to 9 photos into one collage with several layouts, spacing and a background color, sized for posts, stories or A4 printing. No watermark.
Open the tool →Blur faces in a photo before sharing
Hide children's faces, names or number plates before you share a photo: drag a box and choose blur or pixels. Nothing is uploaded anywhere.
Open the tool →Add text to a photo online, free
Write on a photo with a choice of fonts, sizes and colors, and an outline that keeps the letters readable. Drag each text into place and download.
Open the tool →Convert HEIC to JPG: iPhone photos, free
Convert iPhone HEIC photos to JPG or PNG that open everywhere. Convert many at once and download them as one ZIP. Photos are never uploaded.
Open the tool →Remove a plain background from an image
Tap a white or single-color background to erase it and save a transparent PNG. Ideal for logos, scanned drawings and products on a plain background.
Open the tool →Free QR code maker for links, text and WhatsApp
Make a QR code for a link, text, WhatsApp, Wi-Fi, phone or email. Live preview, PNG and SVG download, and printable labels. Your content stays in your browser.
Open the tool →About these tools
Each tool does one job well and works on a computer, a tablet, a phone or the classroom smart board. Most keep your files and text in your own browser, so they are safe for photos of children and personal documents.
Teachers often start with the countdown timer, the spinning wheel and the team generator; parents with the word search and bingo makers for parties; and everyone sooner or later needs to merge a PDF or shrink a photo.
Frequently asked questions
Are these tools free?
Yes. Every tool on this page is free, with no sign-up and no watermark.
Do my files or text leave my device?
No. The calculators, the PDF and photo tools, the QR code maker, the puzzle makers and the Hebrew keyboard all work inside your browser. Your files and text are not sent to a server. The only exceptions are the niqqud tool, which sends the Hebrew text to the Dicta vowel service, and the currency converter, which loads the daily exchange rates.
Which tool is best for picking names in class?
The spinning wheel shows everyone the choice and can skip names that were already picked. For groups, use the team generator, and for a number queue, the random number generator.
Can I use them at a birthday party?
Of course: a countdown timer for charades, a scoreboard for a quiz, online dice for board games, the wheel for prizes and a printable scavenger hunt or bingo.
Why are there Hebrew tools?
Ugabuga is a Hebrew learning site. The Hebrew keyboard, the niqqud tool, gematria and the Hebrew birthday calculator help anyone learning Hebrew or keeping the Jewish calendar.
Explore more: the Ugabuga home page, free printable activities, and printable worksheets.