Writing tools and SEO utilities for content creators, bloggers, and copywriters
Content writers need tools that help optimize articles for both readers and search engines. Our free writing tools include keyword density analysis, word and character counters, text case converters, heading analyzers, and SERP preview generators. All tools work in your browser with no sign-up required.
Analyze keyword density in your articles
Check word and character count for content guidelines
Convert text between uppercase, lowercase, and title case
Preview how your content appears in search results
Analyze heading structure for better readability
Meta Tag Generator
Generate optimized meta tags including OG and Twitter Card tags.
Robots.txt Tester
Validate and test your robots.txt rules against specific URLs.
Sitemap Generator
Generate XML sitemaps from a list of URLs with priority and frequency settings.
Heading Analyzer
Extract and analyze heading structure (H1-H6) from any HTML.
Keyword Density Analyzer
Analyze keyword frequency and density in any text for SEO optimization.
Schema Generator
Generate JSON-LD schema markup for articles, products, FAQs, local business, and more.
SERP Preview
Preview how your page will appear in Google search results with title, URL, and meta description.
YouTube Tags
Generate optimized YouTube tags and keywords from any topic or video description to improve search visibility.
Plagiarism Checker
Check text for plagiarism, duplicate content, and AI-generated writing. Get an originality score with highlighted matches and AI detection analysis. 100% browser-based  your text never leaves your device.
Grammar Checker
Check your text for grammar errors, spelling mistakes, and punctuation issues. Get writing suggestions and readability analysis. 100% browser-based  your text never leaves your device.
Backlink Checker
Analyze any webpage's SEO profile  meta tags, headings, link structure, images, and technical SEO. Get a complete on-page SEO audit with actionable recommendations. Privacy-first  your data is never stored.
Word Counter
Count words, characters, sentences, and paragraphs in your text instantly.
Character Counter
Count characters, words, sentences, and paragraphs in your text with real-time character analysis.
Slug Generator
Generate URL-friendly slugs from any text. Supports multiple separator styles.
Lorem Ipsum Generator
Generate placeholder text for your design and development projects.
URL Encode/Decode
Encode or decode URLs and query strings with proper percent-encoding.
URL Query Parser
Parse URL query parameters into a readable key-value table.
Diff Checker
Find differences between two texts with line-by-line highlighting.
Case Converter
Convert text between uppercase, lowercase, title case, sentence case, and more.
Base64 Encode/Decode
Encode or decode Base64 text instantly in your browser.
Regex Tester
Test regular expressions with real-time matching, syntax highlighting, and cheat sheet.
Markdown Preview
Write and preview markdown with live HTML rendering.
Markdown Editor
Write and preview markdown with live HTML rendering and syntax highlighting.
HTML Entities Converter
Encode or decode HTML entities (& < > ") instantly.
Text Sorter
Sort, reverse, shuffle, deduplicate, and filter text lines.
User-Agent Parser
Parse and analyze User-Agent strings to identify browsers, devices, and OS.
Line Sorter
Sort, shuffle, deduplicate, and reverse lines of text with multiple sorting algorithms.
HTML Tag Stripper
Strip HTML tags, decode entities, and extract clean text from HTML content.
String Manipulator
Apply string operations: reverse, truncate, pad, replace, extract, and transform text.
Placeholder Data Generator
Generate realistic placeholder data: names, emails, phone numbers, addresses, companies, and more.
Binary Converter
Convert text to binary representation and binary back to text.
HTML Formatter
Format, beautify, and indent HTML code with configurable options.
HTML Minifier
Minify and compress HTML code by removing whitespace, comments, and unnecessary attributes.
CSS Formatter
Format, beautify, and sort CSS properties with customizable options.
CSS Minifier
Minify and compress CSS by removing whitespace, comments, and optimizing property values.
JavaScript Formatter
Format and beautify JavaScript code with configurable indentation.
JavaScript Minifier
Minify JavaScript code by removing whitespace, comments, and simplifying syntax.
URL Builder
Build, parse, and manipulate URLs with query parameters visually.
ASCII Table
Create formatted ASCII tables from pasted data for documentation and code comments.
ASCII Converter
Convert text to ASCII codes and ASCII codes back to text instantly.
Image ↆBase64
Convert images to Base64 data URIs and decode Base64 strings back into viewable/downloadable images.
Resume Parser
Parse and extract structured information from any resume or CV text  name, contact details, skills, experience, and education.
Keyword density analysis helps avoid over-optimization, heading analyzers improve content structure, and SERP previews help write better meta titles and descriptions.
No, all content analysis happens locally in your browser. Your articles are never uploaded or stored.
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