Free tools to create, learn & play.

URL encoder & decoder

Encode and decode URLs, Korean text and query values with UTF-8 percent encoding.

Learn Korean for beginners

Learn Hangul, Korea travel phrases and everyday Korean for K-content fans with cards, quizzes and review.

Start learning

Online timer & stopwatch

Set a countdown with sound, repeat rounds, or track elapsed time and laps with a stopwatch.

Photo print size calculator

Check print resolution, preview cropping and compare paper sizes before you print.

Face & fun

Celebrity look-alike

Find a playful celebrity resemblance from a photo. Results are for fun, not identity verification.

Face & fun

Animal face test

Cat, puppy or another animal? Explore your animal-face resemblance with a photo.

Face & fun

Face similarity test

Compare two faces and explore their resemblance for fun.

Image cropper

Crop a photo to a square or custom aspect ratio before sharing or printing.

Quick image editor

Resize, rotate and apply quick image adjustments. Use the photo editor for text and layers.

Video compressor

Try reducing a video file for easier sharing. Large files depend on your device’s memory.

ASCII text art generator

Turn a word or phrase into character-based lettering and copy the result.

CSS button generator

Style a web button and copy the CSS for your next project.

Color palette generator

Explore combinations of colors for your next visual project.

CSS gradient generator

Build a gradient background and copy its CSS.

CSS box shadow generator

Preview a box shadow and adjust its CSS visually.

Typography tester

Preview text styling and compare how type looks on screen.

Base64 encoder & decoder

Encode or decode Base64 text. Encoding does not encrypt or protect a secret.

Color picker

Choose a color and find values to use in your website or design.

JSON formatter

Format JSON into a readable structure and check its syntax.

Password generator

Generate a password with configurable length and character options.

QR code generator

Create a QR code for text or a link and use it in your project.

Memory card game

Flip cards, remember their positions and find matching pairs.

Music quiz

Take a quick music quiz during your next break.

Number guessing game

Use the clues to narrow down the hidden number.

Gomoku — play against the computer

Play five in a row against the computer or a friend on the same device.

Virtual piano

Play a few notes on a piano in your browser.

Rock, paper, scissors

Play a quick round of this familiar hand game.

Tic-tac-toe

Get three in a row in a quick game of noughts and crosses.

Word game

Take a short word-game break and test your vocabulary.

Burnout self-check

Reflect on stress and exhaustion. This self-check is not a diagnosis.

Mood self-check

Reflect on recent mood with a screening questionnaire, not a medical diagnosis.

IQ-style quiz

Try reasoning questions for fun. This is not a standardized IQ assessment.

Personality quiz

Explore personality preferences with an informal quiz.

Age calculator

Calculate age from a date of birth.

BMI calculator

Calculate a BMI estimate from height and weight. It is not a health diagnosis.

Online calculator

Work through everyday arithmetic in your browser.

Currency converter

Estimate a currency conversion. Check the source rate and fees before a transaction.

Date & D-day calculator

Count down the days until an event or a special date.

Unit converter

Convert common measurements for everyday tasks.

Internet speed test

Measure download, upload, HTTP latency and jitter with a real browser transfer test.

Online photo editor

Edit photos with layers, crop, brushes, text and color adjustments. Save PNG, JPG or WebP in your browser.

Scientific calculator

Calculate trigonometry, logarithms, powers and factorials with DEG/RAD modes and calculation history.

World clock with seconds

Compare live city times, dates and UTC offsets, with daylight-saving changes handled by your browser.