Every tool you need, built to just work
QR codes, SEO utilities, marketing links, and everyday calculators — free, fast, and processed right in your browser.
HTML Code Library
Thousands of free, copy-paste HTML, CSS, and JS snippets — marquees, tables, forms, and layout templates ready to drop into any project.
QR Code Generator
Generate advanced QR codes with real-time live preview. Supports 11+ formats — WiFi, vCard, crypto, and more — with 100% client-side privacy.
Marketing & Social Media
Grow your reach with tools built for social platforms and campaigns — tracking links, shareable chat links, and downloaders for the content your audience already loves.
UTM Builder
Generate tracking links for your marketing campaigns.
WhatsApp Link
Create direct chat links for WhatsApp.
Mailto Generator
Generate professional email links with ease.
Hashtag Generator
Generate trending social media hashtags.
Blog Title Generator
Generate SEO-friendly blog titles and headlines.
YouTube Thumbnail
Download HD thumbnails from any YouTube video.
Pinterest Downloader
Save Pinterest photos, videos, and GIFs in original quality.
Facebook ID Finder
Extract numeric Facebook IDs from profile links.
Privacy Policy
Generate professional privacy policies for your site.
Terms & Conditions
Create custom terms of service agreements instantly.
Disclaimer Generator
Generate legal disclaimers to protect your business.
Developer & Technical
Everyday developer utilities for encoding, formatting, and validating — built to save you a trip to the terminal for quick, one-off tasks.
Robots.txt Generator
Create robots.txt files for search engines.
Meta Tag Generator
Boost your SEO with perfect meta tags.
Schema Generator
Generate JSON-LD schema markup for SEO.
Image to Base64
Convert images to Base64 strings.
Picture URL Generator
Upload images and get direct live links instantly.
URL Encoder-Decoder
Encode and decode URLs securely and instantly.
CSS Gradient Generator
Create beautiful CSS gradients with color pickers.
Random Choice Picker
Make random decisions from a list of choices.
UUID Generator
Generate random version 4 UUIDs instantly.
JSON Formatter
Format, beautify, and validate JSON code.
Base64 to Image
Decode Base64 strings back into image files.
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes.
Live HTML Preview
Write HTML/CSS/JS and see live results instantly.
IP Lookup
Find your public IP and network information.
Text to Changelog JSON
Convert text into structured changelog JSON format instantly.
Sitemap Finder & Downloader
Extract URLs, edit lastmod dates, and download custom XML sitemaps.
SEO & Content
Sharpen your content for search with keyword analysis, readability tools, and a live SERP snippet preview — built for modern, E-E-A-T-aware SEO.
SEO Audit Tool
Score any website out of 100 across 27 free SEO and E-E-A-T checks.
Keyword Density
Analyze keyword frequency in your content.
Word Counter
Count words, characters, and reading time.
Text Case Converter
Convert text to UPPER, lower, or Title Case.
Lorem Ipsum
Generate placeholder text for designs.
SERP Preview Tool
Preview how your page appears in Google search.
Daily Utilities & Calculators
Quick, accurate calculators and everyday utilities — for finance, health, productivity, and files — all processed locally in your browser.
AI Vocal Remover
Separate vocals and music with 100% free AI.
Age Calculator
Calculate exact age and date differences.
CPM ROI Calculator
Calculate Cost Per Mille and Return on Investment.
Color Palette Extractor
Extract dominant colors from images as HEX and RGB.
EMI Calculator
Calculate monthly installments and total interest.
Image Compressor
Reduce image size locally without uploading.
Percentage Calculator
Calculate percentages, discounts, and differences.
Pomodoro Timer
25/5 focus timer with start, pause, and reset.
Secure Notepad
Auto-save notes to browser storage with privacy.
Fancy Font Generator
Convert text to cool Unicode styles and fonts.
Unit Converter
Convert length, weight, and temperature instantly.
BMI BMR Calculator
Calculate Body Mass Index and metabolic rate.
Password Generator
Create strong, random passwords for maximum account security.
Marquee Generator
Build classic scrolling marquee text and images for any page.
What people are building with SmartGen
Real feedback from people using our tools every day.
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Frequently asked questions
Is SmartGen really free to use?
Yes, 100% free. SmartGen provides all its web utility tools without any subscription or hidden costs — we believe helpful tools should be accessible to everyone.
Are my data and files secure?
Yes. Most tools, like the Image Compressor and QR Generator, process everything locally in your browser — your files never reach our servers.
Do I need to create an account?
No account or registration is required for any tool. Start using anything on this page immediately, with no personal information needed.
How often are new tools added?
Regularly — new tools are added based on user requests and industry trends. The "New" badge on a tool card marks our latest additions.
Can I suggest a tool or leave feedback?
Yes — use the review section above to share feedback, or reach out through our contact page with tool requests.