Tax, pay, housing, and exchange helpers
Online tools hub
Jabdogu Online Tools
Find quick calculators, file converters, image helpers, text utilities, SEO tools, and developer converters for everyday browser work.
No sign-up firstMost tools are ready to use without creating an account
Browser-first toolsInputs and files stay local whenever the tool allows it
Korean + EnglishBuilt for both local search and international visitors
Popular tools
Server Timeserver time · ticketing · ticket countdownCharacter Countercharacter count · byte count · resumeKorean Income Tax Calculatorincome tax · korea tax · freelancer taxPDF Editorpdf editor · pdf viewer · extract pdf pagesCompound Interest Calculatorcompound interest calculator · investment calculator · monthly contributionExchange Rate Calculatorexchange rate calculator · krw converter · usd to krwHWP/HWPX Document Viewerhwp viewer · hwpx viewer · pdf viewerKorean Salary Calculatorkorean salary calculator · take home pay · korea payrollGPA Calculatorgpa calculator · college gpa · grade point averageKorean Weekly Holiday Pay Calculatorweekly holiday pay · korea part time pay · korean allowanceSmartStore Margin Calculatorsmartstore · margin · naver sellerHEIC to JPG Converterheic to jpg · heic to jpeg · convert heic to jpg
Categories
Server time, countdowns, and time helpers
Count, clean, and transform text
Image, document, and PDF helpers
Life helpers for travel, shopping, and quick checks
Small utilities for developers
Use-case tool sets
Online Image Editing ToolsConvert HEIC to JPG, SVG to PNG, resize, compress, convert formats, and calculate image ratios directly in your browser.Online PDF and Document ToolsEdit, merge, split, add watermarks and page numbers, convert PDF pages to images, preview HWP/HWPX documents, and verify files in one place.Online Text Cleanup ToolsCompare text, count characters, clean whitespace, dedupe lines, sort lists, and analyze pasted text quickly.CSV Data Cleanup ToolsExtract CSV columns, convert CSV to JSON, format JSON, and generate TypeScript types.SEO and Marketing ToolsGenerate and inspect meta tags, robots.txt, sitemap.xml, UTM links, and URLs.Payroll and Work CalculatorsEstimate salary, weekly holiday pay, work hours, insurance, severance, and leave pay.Date and Time CalculatorsCalculate date gaps, countdowns, timers, time zones, Unix timestamps, and ticketing server time.Health and Fitness CalculatorsEstimate BMI, BMR, calories, macros, body fat, ideal weight, and running pace.Developer Converter ToolsConvert, decode, test, and generate URL, Base64, HTML entity, JWT, regex, UUID, Data URI, and MIME values.
Online Tool Guide
Choose tools by search intent, examples, and copyable results
A useful online tool should open quickly, explain how input is processed, and make the result easy to review. Jabdogu organizes tools around task-based search, browser-first processing, quick examples, and copyable outputs.
Start with task words
You do not need to know the exact tool name. Search for task words such as PDF, exchange rate, character count, JSON, or server time.
Check local processing for sensitive data
Before pasting documents, images, tokens, or private text, review whether the tool runs locally and whether custom values are stored in shared URLs.
Use examples to preview output
Quick examples show the input format and result layout before you replace them with your own values.