브라우저에서 실행되는 편리한 도구
문자 수, 단어 수, 줄 수를 실시간으로 계산
텍스트 대소문자 변환
정규 표현식 패턴 테스트
Clean up text by trimming lines and fixing spacing
Compare differences between two texts
Generate sample placeholder text
Generate multiple UUIDs at once
Generate UUID/ULID/KSUID with optional prefixes
Export dummy records as SQL, CSV, or JSON
Convert between Base64, URL, and Hex
Convert between Markdown and HTML and generate a TOC
Bulk replace text with regular expressions
Reverse the text order
Sort lines alphabetically
Remove duplicate lines
Add numbers to each line
Clean extra spaces and blank lines
JSON 포맷, 압축 및 검증
Base64 인코딩/디코딩
URL 인코딩/디코딩
HEX, RGB, HSL 색상 형식 변환
Escape HTML special characters
Unescape HTML entities
Minify HTML by removing whitespace
Minify CSS
Format CSS for readability
Minify JSON
Decode JWT tokens
Generate hashes from text
Generate random passwords
길이, 무게, 온도 등 단위 변환
2진수, 8진수, 10진수, 16진수 변환
Convert JSON arrays to CSV
Convert CSV to JSON arrays
Convert INI to JSON
Convert JSON to INI
Convert images to Base64
Render Base64 as an image
Unix 시간과 날짜/시간 변환
지정된 날짜까지 카운트다운
날짜 차이 및 계산
Create a shareable countdown timer URL
Create a shareable countup timer URL
Optimize work and break cycles with a Pomodoro timer
Minimal Pomodoro timer
Show days and time remaining in this year
Show hours and time remaining today
A collection of digital clocks for OBS
A large web clock with customizable settings
Calculate nPr and nCr
Calculate nCr
Calculate circular permutations (n-1)!
Generate a list of permutations
Calculate Body Mass Index from height and weight
Estimate calories burned from steps
Quickly tally MK8DX 6v6 race scores
Quickly tally MK8DX 3v3v3 race scores
Quickly tally MK8DX 4v4v4 race scores
Quickly tally MK8DX tag match race scores
Create and export a course memo list
Japanese/English item name list
Common in-game chat phrases like GG/GL
A quick list of playable characters and major NPC names
A list of major character names in JP/EN/CN
Compare two YouTube videos side by side
Swap uppercase and lowercase letters
Generate QR codes from text or URLs
Convert RGBA to RGB against a background color
URL로 체크리스트를 만들고 공유
Remove or convert half/full-width spaces
Remove line breaks or convert them to HTML tags
Display times for multiple time zones simultaneously
Convert between seconds, minutes, hours, days, weeks, months, and years
Calculate business days until month-end, year-end, etc.
Convert between monthly salary, annual salary, and hourly wage
Convert cron expressions to human-readable format
Decode and inspect JWT tokens in detail
브라우저와 기기 정보를 한눈에 표시
Detect and display invisible characters in text
Normalize text to prevent copy-paste issues
Split bills with weighted shares and rounding options
Estimate reading/speaking time for your text
Randomly pick one item from a list with roulette animation
Convert between TOML and JSON formats
Calculate network information from CIDR notation
Preview OGP tags as they appear on social media & generate HTML
Calculate 16:9, 4:3, 16:10 and other aspect ratios. Compute dimensions from width or height with fixed ratio
Measure your typing speed and accuracy
Preview and edit SVG path data in real time
Convert Linux file permissions between numeric and symbolic notation
Calculate contrast ratio and check WCAG compliance
Check password strength in real time
깨진 글자를 자동으로 복원합니다. UTF-8, Shift_JIS, EUC-JP, ISO-2022-JP 인코딩을 시도하여 손상된 문자를 복구합니다.
Paper size reference (A/B series) with cutting calculator
Generate .gitignore by selecting languages and frameworks
Convert cURL commands to Python/JavaScript/Go and more
Format and indent SQL queries for readability
Preview Markdown in real-time
Generate favicons from text or emoji
Build robots.txt easily
Generate harmonious palettes from a base color
Compress and resize images in the browser
Search and reference HTTP status codes
Search and copy emojis by category or keyword
Convert between YAML and JSON formats
Visually create CSS gradients
무료 CSS box-shadow 생성기, 실시간 미리보기 지원. 시각적으로 박스 그림자를 만드세요.
Compare structural differences between two JSON objects
Auto-generate JSON Schema from sample JSON
Render diagrams from Mermaid.js notation in real-time
Generate dummy images with custom size, color, and text
Convert between text and Morse code
Generate noise sounds for focus and relaxation
Preview and compare Google Fonts
Build cron expressions visually with next run preview
Create CSS clip-path shapes visually by dragging points
Generate realistic dummy data for testing
View EXIF metadata from JPEG images (client-side only)
무료 온라인 ASCII 아트 생성기. 다양한 글꼴 스타일로 텍스트를 대형 ASCII 아트 문자로 변환하세요.
Generate common Apache .htaccess rules via GUI
Convert CSV/TSV data to Markdown tables with visual editor
Simulate how colors appear to people with color vision deficiencies
Create CSS keyframe animations visually with live preview
Convert files to Data URIs and decode Data URIs back to files
Visually edit cubic-bezier() timing functions with animation preview
Extract dominant colors from images using K-means clustering
Read text aloud using browser speech synthesis
Resize images and convert formats
Generate and test common regex patterns instantly
Convert HEX color codes (#ffffff, etc.) to RGB, HSL, and HSV. Useful for CSS color codes and cross-tool color conversion
웹 디자인, 목업, 레이아웃을 위한 Lorem Ipsum 자리표시자 텍스트를 생성하세요.
Calculate percentages, ratios, and percentage changes
Convert between data size units (B, KB, MB, GB, TB, PB)
Generate random numbers within a specified range
Convert microwave cooking times between different wattages. Never overcook or undercook again.
Calculate screen dimensions, PPI (pixels per inch), and dot pitch for monitors, phones, and tablets.
Calculate expected win rates from Elo rating differences and predict rating changes after matches.
Calculate the break-even point from fixed costs, variable costs, and selling price.
Calculate the required cant (superelevation) for railway curves. Includes angle display, speed limit reverse calculation, and transition curve length.
Calculate chord length, sagitta (rise), arc length, and radius of a circular arc. Enter any two values to compute the rest. Useful for surveying and civil engineering.
A simple browser-based metronome. Set BPM, time signature, and sound to keep accurate tempo.
Calculate factorial (n!) and double factorial (n!!). Supports large numbers.
피보나치 수를 온라인으로 계산하세요. n번째 피보나치 수를 찾고 전체 수열을 표시하며 황금비를 확인하세요.
Calculate and visualize neural network activation functions (Sigmoid, tanh, ReLU, etc.).
Calculate the error function erf(x) and complementary error function erfc(x).
Calculate the gamma function Γ(x) and log-gamma function lnΓ(x).
Calculate the beta function B(a,b) and log-beta function lnB(a,b).
Calculate the Riemann zeta function ζ(s) for real s.
Calculate Bernoulli numbers B_n.
Calculate Bessel functions of the first kind J_n(x) and second kind Y_n(x).
Calculate Fresnel sine integral S(x) and cosine integral C(x).
Calculate the elapsed time between a start and end time.
Add or subtract elapsed time from a base time.
Add and subtract hours, minutes, and seconds.
See how many seconds have elapsed since your birth in real time.
특정 날짜의 요일을 확인하세요. 과거, 현재, 미래 날짜의 요일을 즉시 계산합니다.
Check if a year is a leap year and see nearby leap years.
출생 연도로 중국 12지신 띠를 확인하세요.
Calculate wedding anniversary names and dates from your wedding date.
Calculate milestone birthday celebrations (Kanreki, Koki, etc.) from a birth date.
Calculate your exact age in years, months, days, hours, minutes, and seconds.
Count the number of each weekday within a date range.
Add or subtract years and months from a date.
Calculate the ISO week number from a date.
Calculate the date of Easter for any year.
무료 초과근무 수당 계산기. 초과근무 수당률, 초과근무 급여, 실수령액을 즉시 계산하세요.
Calculate part-time wages from hourly rate and working hours.
무료 리볼빙 신용 계산기. 주택담보대출, 자동차 대출, 리볼빙 신용의 상환을 시뮬레이션하세요.
Calculate Fat-Free Mass Index (FFMI), BMR, and body composition from height, weight, and body fat percentage.
Compare areas to familiar landmarks like football fields and soccer pitches
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