Free Web Tools
Free professional tools for developers, web designers and content creators. No registration required.
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As a developer I can't show design portfolios like a graphic designer – instead I show here what's technically possible. These tools are practical examples of my work and useful helpers for your everyday tasks.
Missing a tool? Use the form at the bottom of the page. |Feedback? Every tool has a rating feature – I appreciate your input.
Code & Development15 Tools
Responsive Design TesterTest your website responsiveness in real time
Color PickerPick colors and get Hex, RGB and HSL values
Viewport TesterTest websites in different screen sizes
Color Harmony ToolGenerate harmonious color palettes for your design
IP Address LookupShows your current IP address and network information
PHP Compatibility CheckerChecks PHP code for compatibility with newer versions
Character CounterCount characters, words, spaces and paragraphs in your text
HTML/CSS/JS MinifierMinifies HTML, CSS and JavaScript code
htaccess GeneratorCreates common .htaccess rules
JSON Formatter & ValidatorFormats and validates JSON data
Regex TesterTests regular expressions with live preview
Base64 Encoder/DecoderConverts text and images to Base64 and back
Nginx Config GeneratorCreates Nginx server configurations
PHP Error CheckerChecks PHP code for syntax errors and parse errors
PHP Code AnalyzerStatic code analysis with PHPStan - finds bugs and type errors
Security3 Tools
QR Code GeneratorCreate QR codes for text, URLs and more
SVG to CSS ConverterConverts SVG graphics into CSS background images
htpasswd GeneratorCreates secure htpasswd entries
SEO11 Tools
Robots.txt TesterAnalyzes and validates robots.txt files
Bot Crawlability TesterTest how well your website is accessible for search engines and AI bots.
Schema Markup TesterTest and validate structured data (JSON-LD, Microdata, RDFa)
RSS Feed ValidatorValidates RSS feeds for correctness and standards
Google Shopping Feed ValidatorValidates Google Shopping product feeds
SEO AnalyzerAnalyzes websites for SEO factors
Hreflang TesterChecks hreflang tags for international SEO
Link CheckerChecks all links on a website for accessibility
SPF Record CheckerChecks SPF records of a domain for correctness
Sitemap AnalyzerAnalyzes sitemap.xml and sitemap-index.xml: type, URL count, lastmod and more.
Sitemap GeneratorCreate sitemap.xml and sitemap-index.xml for your website - free and without login.
Converter19 Tools
Markdown to PDF ConverterConvert Markdown documents into professionally formatted PDF files.
PDF to Markdown ConverterExtract text from PDFs and convert to Markdown
URL to MarkdownConverts web pages into clean Markdown format
Reading Time CalculatorCalculates the estimated reading time of texts
Swiss VAT CalculatorCalculates net, gross and Swiss VAT
Percentage CalculatorCalculates percentages, discounts and markups
Lorem Ipsum GeneratorCreates placeholder text for designs and layouts
PDF DesignerCreate PDFs visually with drag & drop
Timestamp ConverterConverts Unix timestamps to dates and vice versa
URL Encoder/DecoderEncodes and decodes URLs for safe transmission
Case ConverterConverts text to different case styles
Hash GeneratorCreates MD5, SHA1, SHA256, SHA512 hashes
Pixel to REM ConverterConverts CSS units between px and rem
UUID GeneratorGenerates UUIDs v1, v4 and v7 for your applications
Password GeneratorGenerates secure, random passwords
Slug GeneratorCreates SEO-friendly URL slugs
HTML Entity EncoderConverts special characters to HTML entities
Shopware Storefront SearchSearch Shopware Storefront templates, SCSS and JS files
Invoice GeneratorCreate free QR invoices for Switzerland
Image & Graphics5 Tools
Image OptimizerCompresses images without visible quality loss
Favicon GeneratorCreates favicons in all required sizes
Color ExtractorExtracts dominant colors from images
CSS Gradient GeneratorCreates CSS gradients visually
Box Shadow GeneratorCreates CSS box shadows visually
Other1 Tools
Grammar & Spell CheckerChecks texts for grammar and spelling errors
Tool Suggestion
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