NiftyUtils vs Kōōihaus™

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

NiftyUtils compared with Kōōihaus™
Detail	NiftyUtils	Kōōihaus™
What it does	A versatile collection of free online tools including image resizers and croppers, unit converters, calculators, color converters, and much more — all in one place	Free paint coverage calculator for interior and exterior painting projects
Stage	Not given	Established
Founded	Not given	2021
Based in	Not given	US
Pricing model	Free	Free
Pricing	Not given	Not given
Key features	Image Resizer - resize images while maintaining aspect ratio and choosing output format Batch Image Resizer - resize multiple images at once and download as ZIP Image Cropper - crop, flip, or rotate images QR Code Generator - generate custom QR codes with various styles and colors Color Converter - convert between RGB, HEX, HSL, HSV, and CMYK formats Unit Converters - pressure, temperature, time, length, mass, volume and more Word Counter - count words and characters in text PDF to Text Converter - extract text from PDF files Calorie Calculator - calculate daily caloric needs using multiple formulas WCAG Color Contrast Checker - check color contrast according to WCAG 2.1 guidelines	Interior paint calculator Exterior paint calculator Metric and imperial units Primer calculation option Ceiling painting option Gable area calculation for exterior Instant results display
What makes it different	All tools are free to use Comprehensive collection in one place Batch processing capabilities for images Real-time color preview in converters	Handles complex calculations like doors, windows, and multiple stories automatically Works for both interior and exterior projects
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	20 no change since last check	20 no change since last check
Trust Flow (Majestic)	10	4
Citation Flow (Majestic)	20	23
Referring domains (Majestic)	28	37

4 details filled in for both companies.

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