2026-09-07
Updated the 2026 Korea Salary Take-Home Pay Calculator
The calculator now estimates each 2026 employee deduction instead of using one manually entered deduction rate.
Browser-based web utilities
File and calculation tools without installation
Use image, PDF, and audio file tools alongside calculators, converters, and text utilities. Each tool explains its processing approach and practical limits.
Where possible, selected files are handled in your browser instead of being uploaded to a server. Some formats load only the required runtime component when needed.
Use Toolbox often? Add it to your bookmarks
Desktop
- Windows / Chrome / Edge: Ctrl + D
- Mac / Safari / Chrome: Command (⌘) + D
Mobile
- iPhone Safari: Share → Add to Favorites or Add to Home Screen
- Android Chrome: Menu (⋮) → Add to Home screen or Bookmark
Tool Categories
Text Tools
Count characters and words, remove spaces, and convert letter case.
Calculators
Calculate percentages, discounts, VAT, dates, BMI, margins, compound interest, and loan interest.
Converters
Convert temperature, length, weight, pyeong, time, and time zone values into the format you need.
Audio Tools
Convert, trim, compress, and adjust audio files directly in your browser.
PDF Tools
Merge, split, extract, rotate, delete pages, add watermarks, add page numbers, and convert PDF files directly in your browser.
Fun Tools
Fun online tools for image effects, random choices, lotto numbers, and simple games.
Generators
Generate passwords, random numbers, random strings, UUIDs, and QR codes.
Developer Tools
Handle JSON, Base64, URL encoding, and CSV/JSON conversion tasks quickly.
Electronics Calculators
Calculate common electronics values such as Ohms law, voltage divider output, LED resistor values, battery life, RC/RL filters, and reactance.
Image Tools
Resize, compress, crop, rotate, watermark, mosaic, and convert images directly in your browser.
How This Site Is Built
Browser-first processing
Where possible, files and input are handled in the current browser without a server upload workflow.
Features with their limits
Each tool explains limits that depend on file type, browser support, and device memory.
Preview before download
Image and audio tools show previews and result details when possible before download.
Recent Updates
A record of deployed features and verified changes.
2026-08-28
Expanded Unit Converter with 12 categories and full comparisons
You can compare every supported unit in a category from one source value and copy any result directly.
2026-08-27
Added page thumbnails to PDF Organizer
You can show page thumbnails on the left side of the list only when needed to identify each page.
2026-08-25
Added representative-page preview to PDF Watermark
You can render only the first page when needed and see the current watermark settings overlaid immediately.
Featured Tools
Audio Compressor
Reduce MP3, WAV, OGG, and FLAC audio file size by adjusting bitrate and compression settings. Selected files are processed in your browser and are not uploaded to a server.
Audio Cutter
Trim your own MP3, WAV, OGG, and FLAC audio files directly in your browser and download the selected section. Selected files are not uploaded to a server.
Image Color Picker
Click an image to read pixel colors as HEX, RGB, and HSL.
iPhone Ringtone Maker
Select a section from an MP3, WAV, OGG, or FLAC waveform and convert it to an M4R ringtone for iPhone. Files are processed in your browser.
PDF Merger
Combine multiple PDF files into one PDF in your selected order. Selected files are processed in your browser and are not uploaded to a server.
Image Resizer
Resize JPG, PNG, and WebP images directly in your browser.
Image Compressor
Reduce JPG, PNG, and WebP file size by adjusting image quality. Selected images are not uploaded to a server and are processed in your browser.
PDF to JPG
Convert PDF pages to JPG images and download them. Selected PDF files are processed in your browser and are not uploaded to a server.