IT Drawer
Useful tools, without the clutter.
Date Calculator
Add or subtract dates and count business days with Canadian, US, UK and South Korean holiday calendars.
Merge PDF
Combine PDF files in your chosen order without uploading documents.
Split PDF
Extract pages, split each page or divide ranges into PDFs and download a ZIP locally.
Organize PDF
Reorder, remove and rotate PDF pages locally, with undo and redo.
Image to PDF
Combine JPG, PNG and WebP images into a PDF with page size, orientation and margin controls.
PDF to Image
Convert selected PDF pages to PNG or JPG locally, with DPI control and ZIP downloads.
PDF Editor
Add Korean or Latin text and visual signatures to PDFs locally without rasterizing the original pages.
Color Contrast
Check foreground and background colors against WCAG contrast requirements and preview them in common interface contexts.
World Clock
Save the cities you care about and compare live local times at a glance.
Time Converter
Compare the same moment across multiple cities on a synchronized time zone timeline.
Time Difference
See the current time difference between two cities, with practical reference times.
Image Optimizer
Make images web-ready with automatic resizing, conversion, compression, and before/after comparison.
Image Converter
Convert JPG, PNG, WebP, AVIF, and BMP images to WebP, JPG, or PNG in your browser.
Image Masker
Blur, pixelate, or cover parts of an image directly in your browser.
Bulk Rename
Rename many files with one pattern, live preview, drag ordering, and safe batch download.
Markdown Editor
Open multiple Markdown files, edit with live preview, and save your work without uploading documents.
Practical tools, ready when you need them
IT Drawer brings everyday file, image, PDF, color, text and time-zone tasks into one place. Combine or reorganize PDF pages, prepare images for the web, compare local times across cities or tidy filenames without installing a separate app for each job. Choose a tool to get straight to the task.
For image, PDF and filename tools, your files are processed in the browser instead of being uploaded to IT Drawer. Some tools also keep preferences in this browser; sharing a selected time uses a shareable link. Browse the full tool directory or explore a category below.