Free Online Tools for Everyone
55+ free tools for developers, SEO specialists, marketers, and designers — no sign-up required.
SEO & Marketing
23 toolsTools to improve search rankings, social sharing, and online visibility.
QR Code Generator
Create QR codes for URLs, text, or contact info instantly.
Meta Tag Generator
Generate SEO meta tags to improve search engine visibility.
Open Graph Generator
Create Open Graph meta tags for rich social media link previews.
Twitter Card Generator
Generate Twitter Card tags to control how links appear on Twitter.
Schema Markup Generator
Build JSON-LD structured data for better SEO and rich results.
UTM Link Builder
Build UTM tracking URLs to measure campaign performance in Google Analytics.
Keyword Density Checker
Analyze keyword frequency and density in your content to optimize for SEO.
SERP Preview
Preview how your page title and meta description appear in Google search results.
Word Counter
Count words, characters, sentences, paragraphs and estimate reading and speaking time.
Readability Scorer
Score content with Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog Index.
Robots.txt Generator
Build a robots.txt file visually with crawler rules, AI bot blocking, sitemap URL, and crawl delay.
Slug Generator
Convert any text into a clean, SEO-friendly URL slug with custom separator and length options.
Canonical Tag Generator
Generate HTML canonical link tags to prevent duplicate content and consolidate SEO signals.
Hreflang Tag Generator
Generate hreflang tags for international SEO to target the right language and country audiences.
Social Media Image Sizes
Complete 2025 reference guide for image sizes across Facebook, Instagram, Twitter/X, LinkedIn, YouTube, and more.
Email Subject Line Tester
Score your email subject lines for open rate effectiveness — checks length, power words, spam triggers, and more.
Hashtag Generator
Generate relevant hashtags for Instagram, TikTok, Twitter/X, and LinkedIn from any keyword or topic.
Robots.txt Tester
Test if a URL is allowed or blocked by your robots.txt rules. Shows which rule matched and supports all user-agents.
XML Sitemap Generator
Build and download an XML sitemap with URL, priority, change frequency, and last modified date fields.
Google Ads Preview
Write and preview Google Ads copy with real-time character counting for headlines and descriptions.
SEO Title Generator
Generate SEO-optimized page title ideas from a keyword and brand name with character length scoring.
A/B Test Calculator
Calculate statistical significance of A/B tests — enter visitors and conversions to see if your results are conclusive.
Email Signature Generator
Build a professional HTML email signature with name, title, company, contact info, and social links. Paste directly into Gmail or Outlook.
Design & Image
12 toolsColor, image editing, and asset generation tools for designers.
Image Resizer
Resize images to exact dimensions or social media presets with format and quality control.
Gradient Generator
Build CSS linear, radial, and conic gradients visually with live preview and one-click copy.
Placeholder Image Generator
Generate placeholder images with custom dimensions, colors, and text. Export as PNG, SVG, HTML, or Markdown.
Border Radius Previewer
Visually preview and generate CSS border-radius with per-corner control, px/% units, and Tailwind output.
Box Shadow Generator
Build and stack CSS box shadows visually with per-layer control over offset, blur, spread, color, and inset.
Color Palette Generator
Generate harmonious color palettes — monochromatic, analogous, complementary, triadic, and more.
Aspect Ratio Calculator
Calculate aspect ratios, constrain dimensions, and explore common sizes for any width and height.
Color Converter
Convert between HEX, RGB, HSL, and other color formats.
Favicon Generator
Generate favicons in multiple sizes from any image.
Image to Base64
Convert images to Base64 strings for embedding in HTML or CSS.
Image Optimizer
Compress images with lossy or lossless compression for faster load times.
Image Editor
Crop, filter, and apply presets to images right in your browser.
Developer Tools
20 toolsUtilities for writing, formatting, encoding, and debugging code.
JSON Formatter
Beautify and validate JSON data with syntax highlighting.
Base64 Encoder
Encode or decode text and data to Base64 format.
URL Encoder
Encode or decode URL parameters to make them browser-safe.
Hash Generator
Generate MD5, SHA1, SHA256 cryptographic hashes from any string.
Password Generator
Create strong, secure passwords with customizable options.
UUID Generator
Generate universally unique identifiers (UUIDs) for apps and databases.
Unix Timestamp Converter
Convert Unix timestamps to readable dates and vice versa.
Text Case Converter
Convert text to uppercase, lowercase, title case, or camelCase.
Text Diff Checker
Compare two blocks of text and highlight the differences.
SQL Formatter
Format messy SQL queries into clean, readable code.
HTML Minifier
Compress HTML by removing whitespace and comments.
User Agent Parser
Decode user-agent strings to identify browsers and devices.
JWT Decoder
Decode and inspect JSON Web Tokens — view header, payload, expiry status, and algorithm instantly.
Regex Tester
Test regular expressions with live match highlighting and flag toggles. Includes 8 built-in presets.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences, or words with a custom count.
CSS Minifier
Compress CSS by removing comments, whitespace, and redundant characters with before/after size savings.
Markdown Editor
Write and preview Markdown with live rendering. Supports headings, code blocks, tables, and more.
Pomodoro Timer
Stay focused with the Pomodoro Technique — customizable work and break intervals with session tracking.
JSON ↔ CSV Converter
Convert JSON arrays to CSV or CSV data to JSON instantly — with download support.
Number Base Converter
Convert numbers between Binary, Octal, Decimal, and Hexadecimal with bit visualization.