Developer & SEO Tools
25 free online tools for developers and SEO professionals. All tools run in your browser — no data is sent to any server.
For AI Engineers
Token counting, API costs, and data tools for AI agent workflows
For SEO Professionals
SERP previews, meta tags, structured data, and keyword analysis
Google SERP Preview
Preview how your page appears in Google search results
Keyword Density Analyzer
Analyze keyword frequency and density for SEO
Meta Tag Generator
Generate complete HTML meta tags for SEO
Schema Markup Generator
Generate JSON-LD structured data for rich snippets
Hreflang Tag Generator
Generate hreflang tags for international SEO
Robots.txt Generator
Build and validate robots.txt files
XML Sitemap Generator
Create XML sitemaps with priority and frequency
Google Search Operators Builder
Build advanced Google search queries visually
For Developers
API debugging, code conversion, and encoding utilities
cURL to Code Converter
Convert cURL commands to Python, JavaScript, and more
HTTP Status Code Reference
Search and filter all HTTP status codes
User Agent String Generator
Generate user agent strings for browsers and bots
Regex Tester
Test and debug regular expressions with highlighting
URL Encoder / Decoder
Encode and decode URLs and query strings
Base64 Encoder / Decoder
Encode and decode Base64 strings
HTML Entity Encoder / Decoder
Encode and decode HTML entities
For Growth Marketers
Campaign tracking, A/B testing, and content optimization
UTM Link Builder
Build UTM-tagged URLs for campaign tracking
A/B Test Calculator
Calculate sample size and statistical significance
Open Graph Tag Generator
Generate OG meta tags for social media sharing
Word Counter
Count words, characters, sentences, and paragraphs
Lorem Ipsum Generator
Generate placeholder text for designs and prototypes
YouTube & Content
Tools for video content research and analysis
Need Structured Search Data?
Scavio returns clean JSON from Google, Amazon, YouTube, Walmart, and Reddit. 500 free credits/month, no credit card required.