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Dev tools · August 20, 2026

Stefan Andres Tools

Lightning-fast, private tools for web designers & devs

Visit stefan-andres.at ↗Alternativestop 25% of August 2026

What it does

Lightning-fast, 100% client-side browser tools for web designers and developers. Includes a color palette & contrast checker, an icon/favicon generator, and a web image optimizer. No sign-ups, no server uploads, fully private.

Free browser-based tools: favicon generator, CSS/JS minifier, image optimizer, contrast checker, and SEO & PageSpeed check. No sign-up, no uploads.

Everything runs directly in your browser — nothing is uploaded or stored on any server. Upload a logo, extract brand colors, check WCAG contrast, export CSS variables. One upload — every format: favicon , iOS & Android app icons, social profile pictures. Enter your page URL and get an instant on-page SEO check — title, meta description, headings, and alt texts. Paste or upload a stylesheet, strip whitespace and redundancy, download the compressed file. Paste or upload a script, compress and mangle it safely, download the smaller file. Paste or upload SVG, strip unnecessary code, download the smaller file. Enter min and max size, get a ready-to-use clamp() formula for fluid typography — no…from stefan-andres.at

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