Free online tools with useful guides

Fast tools for SEO, writing, images, development, security, and marketing. Built with clear navigation, legal pages, sitemaps, and a single canonical domain.

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Writing

Word Counter

Count words, characters, sentences, paragraphs, and reading time.

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Image

Image Compressor

Compress JPG and PNG images directly in your browser.

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SEO

SEO Keyword Tool

Generate long-tail keyword ideas from a seed topic.

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SEO

Meta Tag Generator

Generate title, description, canonical, and Open Graph meta tags.

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SEO

Robots.txt Generator

Create a basic robots.txt file with sitemap reference.

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SEO

Sitemap URL Builder

Generate XML sitemap URL entries.

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Developer

JSON Formatter

Format and validate JSON for easier debugging.

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Security

Password Generator

Generate strong random passwords in your browser.

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Utility

QR Code Generator

Create QR codes for links and text.

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Marketing

UTM Builder

Build campaign tracking URLs for analytics.

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Marketing

YouTube Title Generator

Generate video title ideas.

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Writing

Readability Checker

Estimate readability from sentence length.

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Text

Case Converter

Convert text to uppercase, lowercase, title case, and slugs.

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Design

Color Converter

Convert HEX colors to RGB and preview colors.

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Developer

Timestamp Converter

Convert Unix timestamps to readable dates and back.

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Calculator

Percentage Calculator

Calculate percentages, discounts, increases, and decreases.

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Why LenKate Tools is built this way

The website is organized to help both visitors and search engines. Each tool has its own page, helpful description, working interface, and related internal links. Articles are published on separate URLs and included in the XML sitemap.

The preferred domain is https://lenkate.com, with redirects from other variants to avoid duplicate indexing.