Image Resizer
Use Image Resizer in your browser.
Free, fast, no-login tools for everyday work
Day Toolbox keeps practical image, text, developer, and calculator utilities in one place. Ready tools run in your browser whenever possible.
Free to useNo registrationBrowser-side first
Tool Categories
Browse ready browser-based tools by category.
Image Tools
Resize, convert, and prepare images in the browser.
8 tools
Text Tools
Text counting, QR code, barcode, and writing utilities.
6 tools
Developer Tools
JSON, URL, Regex, Diff, JWT, formatter, and parser tools.
34 tools
Calculators
Daily calculators for dates, finance, random picks, health, and units.
21 tools
Popular Tools
Image Resizer
Use Image Resizer in your browser.
Image to WebP Converter
Use Image to WebP Converter in your browser.
QR Code Generator
Use QR Code Generator in your browser.
QR Code Decoder
Use QR Code Decoder in your browser.
Word Counter
Use Word Counter in your browser.
Text Diff Checker
Use Text Diff Checker in your browser.
JSON Formatter
Use JSON Formatter in your browser.
JSON Diff Checker
Use JSON Diff Checker in your browser.
Why use Day Toolbox
Open and use quickly
Common tasks stay simple, without forcing accounts, dashboards, or extra workflow steps.
Browser-side first
Tools that can run locally are designed to stay in the browser, without a custom backend.
Mobile friendly
Layouts, touch targets, and readable spacing are built for quick use on phones and desktops.