Developer tools

Build, inspect, and prepare web data.

Featured

</> JSON Formatter </> Regex Tester </> JWT Decoder

⌘ Meta Tag Generator

Popular tools

</> JSON Formatter

</> JSON Validator

</> JSON Minifier </> JSON ↔ CSV Converter </> JSON ↔ YAML Converter </> Base64 Encoder / Decoder </> URL Encoder / Decoder </> HTML Encoder / Decoder </> UUID Generator </> JWT Decoder </> Regex Tester </> Timestamp Converter

⌘ Meta Tag Generator

⌘ Open Graph Generator ⌘ Robots.txt Generator ⌘ Sitemap Generator ⌘ UTM URL Builder

View all Developer tools →

Everyday tools

Calculate, convert, and organize common inputs.

Featured

∑ Percentage Calculator ⇄ Length Converter Aa Word Counter ∑ Age Calculator

Popular tools

∑ Percentage Calculator ∑ Discount Calculator ∑ Profit Margin Calculator ∑ ROI Calculator ∑ Simple Interest Calculator ∑ Compound Interest Calculator ∑ Loan / EMI Calculator ∑ Age Calculator ∑ Date Difference Calculator ∑ Tip Calculator ⇄ Length Converter ⇄ Weight / Mass Converter ⇄ Temperature Converter ⇄ Area Converter ⇄ Volume Converter ⇄ Speed Converter ⇄ Time Converter ⇄ Digital Storage Converter ⇄ Pressure Converter ⇄ Energy Converter

View all Everyday tools →

Other tools

Explore colors, generators, and useful extras.

Featured

◉ Color Contrast Checker

◉ HEX to RGB Converter ✦ Password Generator ✦ Random String Generator

Popular tools

◉ HEX to RGB Converter ◉ HEX to HSL Converter ◉ Color Contrast Checker ✦ Password Generator ✦ Random String Generator

View all Other tools →

Search tools/Language

Developer tools

Developer Tools JSON Formatter JSON Validator JSON Minifier JSON ↔ CSV Converter Web & SEO Tools Meta Tag Generator Open Graph Generator Robots.txt Generator Sitemap Generator View all Developer tools →

Everyday tools

Calculators Percentage Calculator Discount Calculator Profit Margin Calculator ROI Calculator Converters Length Converter Weight / Mass Converter Temperature Converter Area Converter Text Tools Word Counter Character Counter Case Converter Remove Duplicate Lines View all Everyday tools →

Other tools

Color Tools HEX to RGB Converter HEX to HSL Converter Color Contrast Checker Generators Password Generator Random String Generator View all Other tools →

Home/Search results

Tool search

Search results

Search tool names, categories, descriptions, and configured keywords.

Search for a tool.../

Search tips

Try a tool name, a task, or a unit: JSON, percentage, kg to lb, or password.

What do you need to do?

Enter a tool name, task, keyword, or unit conversion above.

Useful tools. One organized place.

Practical digital utilities for everyday work.

hi@toolboxshelf.com

Company

About Contact All tools Search tools

Developer tools

JSON Formatter JSON Validator JSON Minifier JSON ↔ CSV Converter JSON ↔ YAML Converter Base64 Encoder / Decoder

Everyday tools

Percentage Calculator Discount Calculator Profit Margin Calculator ROI Calculator Simple Interest Calculator Compound Interest Calculator

Other tools

HEX to RGB Converter HEX to HSL Converter Color Contrast Checker Password Generator Random String Generator

© 2026 ToolboxShelf

Privacy Terms Cookies Disclaimer Accessibility

Privacy choices

Choose optional services

ToolboxShelf uses necessary browser preferences to remember this choice. Analytics and advertising remain off unless you allow them and the corresponding site settings are configured.

NecessaryLanguage and consent preferences.AnalyticsOnly used if analytics is configured.AdvertisingOnly used if advertising is configured.