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Security utilities

Tools for passwords, identifiers, and common browser-based security preparation tasks.

Quick account setup support
Serverless, browser-only workflows
Expandable security toolbox

Passphrase Generator Hash Generator UUID Generator

Available tools

Password Generator

Create secure random passwords with configurable character rules.

Engineering and unit conversion

Simple tools for field work, specifications, calculations, and unit conversion.

Legacy units to SI conversions
Maintenance and settings checks
Fast utility pages for practical work

Pressure Converter Temperature Converter RPM Converter

Available tools

Torque Converter

Convert between kgf-cm and N-m for specs, maintenance, and setup work.

Text processing

Helpers for writing, SEO, social media, and basic text manipulation tasks.

Real-time text analysis
Useful for multilingual content
Optimized for quick editing workflows

Line Break Remover Width Converter Duplicate Line Remover

Available tools

Text Counter

Check characters, words, non-space characters, and lines at once.

Web development helpers

Small tools for URLs, data conversion, API testing, and development-side checks.

Great for copy-and-paste workflows
Useful for debugging and validation
Designed to scale as a static toolbox

JSON Formatter Base64 Converter JWT Decoder

Available tools

URL Encoder / Decoder

Encode or decode URL strings and query parameters in the browser.

JA EN

Web development

URL Encoder / Decoder Tool

Encode or decode URL strings in the browser. This is useful for query parameters, multilingual URLs, debugging, and quick web development checks.

Input

Source string

Output

Converted string

What is URL encoding?

URL encoding converts characters that are not safe or practical inside a URL into a percent-based format. This includes spaces, non-ASCII characters, and reserved symbols.

URL decoding does the reverse by turning encoded strings back into readable text. These operations are common in query parameters, forms, analytics links, APIs, and debugging tasks.

Common use cases

Building query parameter URLs
Checking encoded multilingual strings
Inspecting form submissions or API requests
Validating marketing and analytics links

Frequently asked questions

When should I use URL encoding?

Use URL encoding when a query string or URL contains spaces, non-ASCII characters, or reserved symbols.

Why can URL decoding fail?

Decoding can fail if the input contains broken percent-encoded sequences or malformed URL data.