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 GuideWhy Use MinimalDev Tools?
MinimalDev provides practical online tools designed for real-world use cases. Each tool focuses on solving a specific problem quickly, without unnecessary complexity.
Unlike many generic tool websites, this platform emphasizes clarity and accuracy. Tools include detailed explanations, real examples, and guidance to help users understand results, not just generate them.
What You Can Do Here
- Calculate financial values such as loans and compound interest
- Format and validate developer data like JSON and Base64
- Generate secure random strings and identifiers
- Convert units and measurements accurately
Designed for Practical Use
All tools run directly in your browser with no data sent to servers. This ensures privacy, speed, and reliability for everyday tasks.
Whether you are a developer, student, or general user, MinimalDev helps you get accurate results with clear understanding.
Popular tools
Start with commonly used tools for calculations, conversions, and quick checks.
Percent Calculator
Calculate percentages and changes.
OpenCompound Interest Calculator
Calculate long-term investment growth with compounding.
OpenLoan Calculator
Estimate loan payments and total interest.
OpenJSON Formatter
Format, validate, and debug JSON data easily.
OpenBase64 Encoder & Decoder
Encode and decode Base64 securely in your browser.
OpenRandom String Generator
Generate secure random strings for tokens and IDs.
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.