Free online tools

Word & Character Counter

Count words, characters, lines and UTF-8 bytes in real time.

🖼️

Image Compressor & Resizer

Import SVG, JPG, PNG or WebP images, then resize, compress and export them as JPG, PNG or WebP.

✂️

Image Cropper & Rotator

Crop a photo to a custom ratio, rotate or flip it, and save it as JPG, PNG or WebP.

🪄

Portrait Background Remover

Remove portrait backgrounds with on-device AI and save a transparent PNG.

📄

Merge & Split PDF

Merge PDFs, extract pages, rotate documents or turn images into a PDF.

🎨

Palette & Gradient Studio

Extract five key colors from a photo and build CSS gradients.

💧

Batch Watermark Studio

Apply a text or logo watermark to multiple photos at once.

📝

Markdown Editor & HTML

Write Markdown with a live preview and copy the converted HTML.

↔️

Text Diff Checker

Compare original and revised text line by line with additions and removals highlighted.

🎬

Creator Image Resizer

Resize one image for Chzzk, Twitch, SOOP and YouTube presets.

▶️

YouTube Thumbnail Grabber

View and download thumbnails in multiple sizes from a video URL.

Lifestyle

📆

D-Day Calculator

See exactly how many days remain until a special date.

🗓️

Date & Weekday Calculator

Find the difference between dates, count weekdays and add days.

🔳

LifestyleSouth Korea rules

QR Code Maker & Reader

Create URL and Wi-Fi QR codes or read a QR image.

💼

Salary, Severance & Leave

Estimate net salary, severance, weekly holiday pay and leave under South Korean 2026 rules.

📈

Average Cost Calculator

Calculate the new average price, quantity and cost after another purchase.

🎂

LifestyleSouth Korea rules

Full Age Calculator

Calculate age from a birth date and reference date using the international birthday-based method.

🪖

Korean Military Discharge Date

Estimate a South Korean military discharge date from enlistment date and service months.

🏷️

Discount & Deduction Calculator

Calculate coupon prices and estimated net amounts after a percentage deduction.

📐

Everyday Unit Converter

Convert area, temperature, data, length and weight units instantly.

🛂

LifestyleKorean names

Korean Name Romanization Suggestions

Compare several Romanized spellings using common family-name forms and Revised Romanization.

🎓

GPA Converter

Convert between 4.3, 4.5, 4.0 and 100-point grading scales.

📍

Random Place Nearby

Pick a random restaurant or cafe within your chosen radius.

⏱️

OBS Stream Countdown

Create a chroma-key countdown URL for an OBS browser source.

🌙

Sleep & Hydration Calculator

Estimate 90-minute sleep cycles and daily water needs.

🧾

Split Bill Calculator

Split first and second rounds and create a payment request message.

🍜 Coming soon

Lifestyle

What Should I Eat?

Let us pick a lunch when deciding feels impossible.

Random picks

🔢

Random Number Picker

Draw secure random numbers with custom ranges, exclusions and duplicate rules.

🎡

Name Wheel

Paste names or choices and spin an animated wheel to pick a winner.

👥

Random Team Generator

Shuffle a participant list into evenly distributed teams.

🔀

Random Order Picker

Randomize presentation, chore or game order in one click.

🎱

Lottery Number Generator

Create 6/45 or fully custom random number combinations.

🎲

Coin Flip & Dice Roller

Flip multiple coins or roll dice from D4 through D100.

🪜

Ladder Game

Build a random ladder that connects every player to an outcome.

🎁

Capsule Draw

Put choices or challenges into colorful capsules and open one.

🏆

Tournament Bracket Maker

Randomly seed players and export the bracket as a PNG.

⚖️

Balanced Team Matcher

Use player scores to build teams with similar overall skill.

Sound & audio

🌧️

Focus Sound Mixer

Mix synthesized rain, fireplace and café sounds for focus or relaxation.

🥁

BPM Tap Tempo

Tap along to music to measure its BPM and your rhythmic consistency.

〰️

Frequency Tone Generator

Play waveforms at any frequency from 20 Hz to 20 kHz.

🎙️

Microphone Recorder & Trimmer

Record audio, view its waveform and save a selected section as WAV.

Video & GIF

🎞️

Video & GIF

Video to GIF Converter

Trim part of a video and turn it into a GIF entirely in your browser.

🏃

Video & GIF

GIF Speed & Size Optimizer

Adjust GIF speed, frame rate, dimensions and color count.

📸

Video & GIF

Video Frame Extractor

Capture an exact video moment as a high-quality PNG.

Public data

🌤️

Global Weather & Outfit Guide

Check current conditions, a 5-day forecast and air quality for any city, with practical umbrella and outfit tips.

🚀

NASA Space Data Explorer

Explore the astronomy picture of the day, near-Earth objects for the next week, and recent solar activity.

🍁

MapleStory Character Lookup

Look up a character's level, key stats, Union, Mu Lung Dojo record and equipped items by name.

⚡

Global EV Charger Finder

Find EV charging locations and connector information near cities worldwide.

🌍

Global Country Data Comparison

Compare GDP, population, life expectancy and other official World Bank indicators.

🌋

Live Global Earthquake Map

Explore the magnitude, location and depth of recent earthquakes using the live USGS feed.

💱

Official Exchange Rate Calculator

Convert currencies with ECB reference rates and compare their 90-day trend.

🏫 Coming soon

Public data

Find Local Academies

Search regional academy information using public data.

Tests

✨

My Energy Type

A light personality test with just five questions.

⚡

Reaction Time Test

Click when the screen changes color and measure your reaction time in milliseconds.

👁️

Color Vision Challenge

Find the subtly different tile and measure your color sensitivity.

🧠

Number Memory Test

Remember flashing digit sequences and enter them in order.

🎵

Absolute Pitch Test

Listen to a note and identify it from the musical scale.

⌨️

Typing Speed Test

Type a short passage and measure WPM, accuracy and time.

➗

One-minute Mental Math

Solve arithmetic for 60 seconds and compare your ranking.

Games

🎯

Aim Trainer

Click random targets to measure mouse speed and accuracy.

⚫

Tic-tac-toe & Gomoku

Play locally or challenge a friend using a room code.

🧠

Memory Card Match

Remember the hidden cards and match every pair as fast as possible.

🎮

2048 & Minesweeper

Two classic puzzle games that are hard to put down.

CSS & web design

🪟

CSS Shadow & Glass Generator

Tune box shadows and glass effects visually, then copy the CSS.

📏

PX, REM & EM Converter

Convert CSS units using custom root and parent font sizes.

🔤

Web Font Preview

Compare the same text across common system fonts and sizes.

🌐

Favicon Generator

Turn an image into 16, 32 and 48px PNGs and a favicon.ico set.

Data visualization

📊

Data visualization

Chart Image Generator

Turn values into clean bar, pie or line charts and save PNGs.

☁️

Data visualization

Word Cloud Generator

Analyze word frequency and create a downloadable word cloud.

🧩

Data visualization

Text Mind Map Generator

Turn a tab-indented outline into a connected SVG tree.

Developer tools

🔐

Passwords & Base64

Generate secure passwords and convert text or images to Base64.

🧰

JWT, Cron & Mock Data

Decode JWTs, build Cron expressions and generate JSON or CSV test data.

📐

SVG Code & PNG Studio

Preview and optimize SVG code or render it as a downloadable PNG.

🧩