Free Online Tools & Practical Guides
MinimalDev provides simple online calculators, converters, and clear guides for everyday tasks.
Understand when to use each tool and get accurate results quickly.
Guides & Practical Tips
Learn how to use tools correctly and understand results with real examples.
Image Format Comparison
Compare JPG, PNG, and WebP formats and when to use each.
Read GuideReduce Image Size
Learn compression trade-offs between quality and file size.
Read GuideWhy Use WebP
Understand how WebP improves performance and reduces size.
Read GuideJPG vs PNG
Choose the right format for photos vs graphics.
Read GuideImage Resize Guide
Resize images properly while maintaining aspect ratio and clarity.
Read GuideImage Optimization for Web
Optimize images to improve website speed and performance.
Read GuidePopular tools
Start with commonly used tools for calculations, conversions, and quick checks.
Percent Calculator
Calculate percentages and changes.
OpenDays Between Dates
Calculate the number of days between dates.
OpenLength Converter
Convert between units easily.
OpenLoan Calculator
Estimate loan payments.
OpenBMI Calculator
Check BMI and category.
OpenPassword Generator
Create secure passwords.
OpenBrowse by category
Explore tools by category to quickly find what you need.
About MinimalDev
MinimalDev focuses on simple tools with clear explanations.
Each tool solves one problem clearly and efficiently.