100% Free & Browser-Based

Simple Image Tools for Everyday Work

Free browser-based calculators, converters and image utilities for DPI, print size, image dimensions, resizing, colors and more.

Explore Tools How It Works
Free to Use
No Registration
Browser-Based
Privacy-Focused
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Image Calculators & Utilities

Select a tool below to calculate, resize, convert, or inspect your images instantly.

IMAGE CALCULATOR

Image DPI Calculator

Calculate physical print dimensions in inches, cm, and mm from pixel dimensions and DPI settings.

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PRINT TOOL

Print Size Calculator

Determine exact photo print dimensions across common resolution presets like 72, 150, 300, and 600 DPI.

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CONVERTER

Pixels to Inches Calculator

Convert digital pixel measurements directly to physical inches with bi-directional toggle and DPI presets.

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CONVERTER

Pixels to CM Calculator

Convert pixels to centimeters and CM back to pixels instantly based on custom or target DPI values.

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DIMENSION TOOL

Aspect Ratio Calculator

Calculate ratios from dimensions and instantly solve missing width or height values for 16:9, 4:3, 1:1, etc.

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ESTIMATOR

Image File Size Calculator

Estimate uncompressed RAM and raw bitmap file sizes in Bytes, KB, MB, and GB based on color bit depth.

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IMAGE PROCESSOR

Image Resizer

Upload, scale, maintain aspect ratio, and convert images to JPEG, PNG, or WebP completely inside your browser.

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COLOR UTILITY

Image Color Palette Extractor

Extract dominant color palettes (HEX/RGB) from any uploaded image with quick copy buttons and client privacy.

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COMPLIANCE TOOL

Social Media Image Size Checker

Test image dimensions against standard specifications for Instagram, YouTube, Facebook, LinkedIn, and more.

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100% Client-Side Privacy Guarantee

Your privacy is absolute. All image processing, calculations, resizing, and color extraction take place locally in your web browser using HTML5 APIs and Canvas. Your images are never uploaded to any server or stored remotely.

How MicroImageTools Works

Fast, transparent, and hassle-free utilities designed for designers, photographers, and developers.

1

Select Your Tool

Choose from our comprehensive list of calculators, converters, resizers, or color utilities.

2

Input Data or File

Enter your pixel dimensions, DPI values, or drop an image file directly into the tool container.

3

Instant Local Results

Calculations and image exports process instantly in your browser memory for immediate download or copy.

Frequently Asked Questions

Common questions about image metrics, DPI, resizing, and browser capabilities.

What is DPI and why does it matter?

DPI stands for Dots Per Inch. It measures spatial printing density. Higher DPI values mean sharper print output. Digital screens rely on pixel dimensions, whereas physical printers require DPI to know how small or large to render those pixels onto paper.

How do I calculate physical print size from pixel dimensions?

Divide the width and height in pixels by your target DPI setting. For instance, an image of 3000 × 2400 pixels printed at 300 DPI will result in a physical print size of 10 × 8 inches.

How many pixels do I need for high-quality photo printing?

Standard professional photo printing requires 300 DPI. For an 8×10 inch print, you need an image size of 2400 × 3000 pixels. For basic canvas or large poster printing viewed from a distance, 150 to 200 DPI is often sufficient.

Are these tools completely free to use?

Yes, all calculators, converters, and utilities on MicroImageTools are 100% free with no registration required and no limits on usage.

Do I need to upload my image files to a server?

No. MicroImageTools processes everything inside your web browser using JavaScript HTML5 Canvas APIs. Your files remain entirely on your personal computer or device.

What is aspect ratio?

Aspect ratio is the proportional relationship between an image's width and height. Standard display aspect ratios include 16:9 (standard widescreen), 4:3 (traditional photography/monitors), and 1:1 (square format).