Tips
7 Tips for Solving Equations Effectively
Practical tips for solving equations of varying complexity using the online tool.
5 min read - 2026-01-22
Ultimate Tools Blog
Articles, guides and tips for online tools
Guide
JSON Data Generator: Guide to Creating Test Data
How to generate realistic JSON data for testing, development, and demonstrations.
7 min read - 2026-01-22
Guide
Text to speech: how to voice text online
A guide to using speech synthesis. How to turn text into audio with voice and speed settings.
6 min read - 2026-01-22
Guide
Network Port List: Complete TCP and UDP Guide
TCP/UDP network port reference. Which ports are used by popular services and protocols.
7 min read - 2026-01-22
Guide
To-Do List: Guide to Organizing Your Tasks
How to properly maintain a to-do list, set priorities, and get everything done. A complete guide.
7 min read - 2026-01-22
Tips
Tips for working safely with JWT tokens
Practical advice on JWT: security, storage, updating and common vulnerabilities.
6 min read - 2026-01-21
Guide
Percentage Calculator — How to Calculate Percentages Correctly
Full guide to percentage math: percent of a number, markup, discount, and percent change.
6 min read - 2026-01-20
Guide
Contrast Checker: Color Accessibility Guide
How to check text contrast according to WCAG standards. AA and AAA requirements, calculation formulas.
7 min read - 2026-01-20
Guide
Timezone Converter: How to Convert Time Between Cities
A guide to converting time between time zones. Formulas, examples, and an online tool.
7 min read - 2026-01-20
Use Cases
Dice Roller — Use Cases
Practical examples of using virtual dice for games, education, and decision-making.
6 min read - 2026-01-20
Guide
Budget Planner: How to Take Control of Your Finances
A complete guide to personal and family budget planning. Methods, expense categories, and practical steps.
7 min read - 2026-01-20
Guide
Online Image Compression: The Complete Guide
How to compress images without losing quality. Formats, algorithms and best optimization practices.
7 min read - 2026-01-20
About this blog
Practical tutorials and deep guides for calculators, converters, generators and developer tools.