Free Developer Tools
Useful tools for frontend developers and designers. No sign-up required for most features — just open and use.
Site Audit
Extract colors, fonts, headings, tech stack, and accessibility data from any URL. Export as JSON, CSS variables, or a visual PNG summary.
OG Image Tester
Preview and validate your Open Graph images exactly as they appear on Twitter, LinkedIn, Facebook, and Slack.
OG Preview
See a live preview of what your page looks like when shared on social media. Enter any URL.
Meta Tag Generator
Generate complete SEO and Open Graph meta tags for your page. Copy-paste ready HTML.
Color Extractor
Extract the dominant color palette from any image URL. Returns hex values with frequency.
Responsive Preview
Preview any website at mobile, tablet, and desktop breakpoints side by side.
Favicon Checker
Inspect all favicon variants of any website — ICO, PNG, SVG, Apple Touch icons, and manifest icons.
Need these in your app?
All tools are powered by the SnapSharp API — available as JSON endpoints.