Server Time
Check server time for ticketing and booking sites, then count down to a target time with fallback guidance.
TimeList
Search calculators, text utilities, image editors, file converters, and developer tools by keyword or category.
For faster loading, this page starts with popular tools. Search or browse categories to find the rest.36/101 tools
Character Counter
Count characters, bytes, words, and lines instantly.
TextPDF Editor
Preview, extract, split ranges, delete pages, add page numbers, add watermarks, rotate, merge, and export PDFs from one workspace.
FilesKorean Income Tax Calculator
Estimate Korean income tax and local income tax in KRW for salary, business, and freelance income.
MoneyCompound Interest Calculator
Estimate long-term future value and earnings from starting amount, contributions, rate, and compounding frequency.
MoneyExchange Rate Calculator
Convert KRW and travel currencies with latest reference rates, manual rates, and exchange or card fees.
LifeHWP/HWPX Document Viewer
Open HWP/HWPX Hangul documents, preview pages, or download them as a PDF.
FilesGPA Calculator
Calculate overall GPA, major GPA, earned credits, pass/fail handling, and target GPA from courses.
LifeKorean Salary Calculator
Estimate Korean KRW monthly take-home pay, social insurance, and tax deductions from annual salary.
MoneyHEIC to JPG Converter
Convert iPhone HEIC/HEIF photos into JPG or PNG locally in your browser and download a ZIP.
FilesKorean Weekly Holiday Pay Calculator
Estimate Korean weekly holiday pay from hourly wage and scheduled weekly hours.
MoneySmartStore Margin Calculator
Estimate seller profit, break-even price, and target-margin sale price from costs, shipping, fees, and ads.
MoneyImage Cropper
Upload an image, choose an aspect ratio, adjust zoom and position, then crop locally in your browser.
FilesSVG to PNG Converter
Render SVG files or pasted SVG code into PNG or JPG images locally in your browser.
FilesSignature Generator
Draw or type a signature and download a transparent PNG for documents, PDFs, and forms.
FilesLoan Interest Calculator
Estimate monthly payment and total interest from amount, rate, and term.
MoneyInvoice Generator
Create a professional PDF invoice from business, client, line item, tax, and discount details in your browser.
MoneyEmail Signature Generator
Create a professional HTML email signature for Gmail, Outlook, Apple Mail, and more.
TextImage to PDF Converter
Convert JPG, PNG, and WebP images into one ordered PDF locally in your browser.
FilesKorean Social Insurance Calculator
Estimate Korean payroll deductions for pension, health, long-term care, and employment insurance.
MoneyImage Compressor
Compress images in your browser without uploading them.
FilesText Diff Checker
Compare two texts or text files online with a GitHub-style side-by-side diff, word highlights, whitespace/case options, and patch download.
TextMeeting Time Planner
Find practical meeting times across cities by comparing each participant's working hours.
TimePassport & ID Photo Maker
Crop a photo into passport, visa, or ID sizes, then download a single file or printable 4x6 sheet.
FilesJSON Formatter
Format, minify, validate, sort keys, stringify, and convert JSON Lines.
DeveloperImage Resizer
Resize photos by width, height, exact size, or percentage without uploading them.
FilesHTML to Markdown Converter
Convert blog, docs, and email HTML snippets into Markdown for GitHub, Notion, and README files.
TextRoute Cost Planner
Estimate multi-stop route distance, fuel, tolls, parking, total trip cost, and split cost from origin, stops, and destination.
LifeCalorie Calculator
Estimate maintenance, cutting, and bulking calories from age, height, weight, sex, activity, and optional body fat.
LifeKorean Age Calculator
Calculate international age and Korean counting-age references for forms and profiles.
LifeD-Day Countdown
Count days until tickets, exams, trips, or any target date.
TimeQR Code Generator
Turn URLs or text into QR codes and download them as SVG, PNG, or PDF.
DeveloperImage Format Converter
Convert images to WebP, JPEG, or PNG locally and resize width when needed.
FilesImage Color Palette Extractor
Extract dominant colors from photos or screenshots, then copy and save HEX, RGB, and HSL palettes.
FilesCSV JSON Converter
Convert CSV to JSON and JSON to CSV directly in your browser.
DeveloperMacro Calculator
Calculate protein, carb, and fat targets from age, height, weight, goal, activity, and optional body fat.
LifeTool Selection Guide
A practical online toolkit for small everyday tasks
Jabdogu collects small calculators, converters, text utilities, image tools, PDF helpers, everyday utilities, and developer tools that open directly in the browser. Tools are organized around searchable names, clear examples, copyable results, and shareable sample links so visitors can start without creating an account.
Browser-first processing
Text, image, PDF, and calculator tools are designed to run in the browser whenever possible. When a server feature is required, the tool explains the behavior and limits clearly.
Search and categories
You can search by task words such as JSON, server time, PDF, exchange rate, or character count, or browse by money, time, text, files, everyday, and developer categories.
Examples and result review
Quick examples help new visitors understand each workflow before entering real values, and results are designed to be copied or checked before sharing.