Free Developer & Marketing Tools
33+ free tools — no login required. All processing happens in your browser for maximum privacy.
JSON Formatter
Format, validate and beautify JSON data with syntax highlighting
CSS Minifier
Minify your CSS code to reduce file size and improve performance
HTML to JSON
Convert HTML markup into a structured JSON representation
XML to JSON
Convert XML data to JSON format quickly and accurately
Markdown to HTML
Convert Markdown text into clean HTML with live preview
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to text
Lorem Ipsum Generator
Generate placeholder text for your designs and mockups
Meta Tag Generator
Generate SEO-optimized HTML meta tags for your website
robots.txt Generator
Build a proper robots.txt file for search engine crawlers
Schema Markup Generator
Create JSON-LD structured data for rich search results
Hashtag Generator
Generate relevant hashtags for your social media posts
Safe URL Checker
Check if a URL is safe to visit or potentially malicious
Contrast Checker
Check WCAG color contrast ratio for accessibility compliance
Image Compressor
Compress images without losing quality — all in your browser
Image to WebP
Convert PNG, JPG images to WebP format for faster loading
Image Resizer
Resize images to exact dimensions while maintaining quality
Screenshot Mockup
Place your screenshots in beautiful device frames
Regex Tester
Test and debug regular expressions with real-time matching
Diff Checker
Compare two texts side by side and highlight differences
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa
Color Picker
Pick colors and convert between HEX, RGB, and HSL formats
Cron Expression Builder
Build cron expressions visually with a human-readable preview
HTML Viewer
Paste HTML and see a live preview instantly — split view, format, import & export
HTML Editor
Full-featured browser-based HTML editor with line numbers, Tab support and live preview
Domain Authority Checker
Check the authority score and SEO strength of any domain
Spam Checker
Analyze email content or text for potential spam triggers
Whois Lookup
Look up domain registration and ownership information
DNS Lookup
Query DNS records (A, AAAA, MX, CNAME, NS, TXT) for any domain
TS to MP4 Converter
Convert TS video files to MP4 format directly in your browser
Video to MP4
Convert AVI, MKV, MOV and other formats to MP4
OGG to MP3
Convert OGG audio files to MP3 format
Invoice Generator
Create professional PDF invoices in seconds — free and private
Age Calculator
Calculate your exact age in years, months, and days — see how long until your next birthday
Showing 33 of 33 tools