The studiotoolbox.
Twelve free tools we use on every project — for SEO, design and planning. No sign-up, nothing leaves your browser.
SERP preview
See how your page looks on Google before you publish — with length warnings for titles and descriptions.
FAQ schema generator
Write questions and answers, get copy-paste FAQPage JSON-LD that helps Google and AI assistants quote you.
UTM link builder
Build tagged campaign links so every click shows up correctly in Google Analytics.
Readability checker
Paste copy to get a Flesch reading-ease score, sentence length and reading time.
Contrast checker
Check any two colours against WCAG AA and AAA accessibility standards.
Body text needs 4.5:1 to pass WCAG AA. Large headlines need 3:1.
Palette generator
Turn one brand colour into a full 50–900 tint and shade scale.
Type scale generator
Pick a base size and ratio to get a harmonious heading scale, ready as CSS variables.
Fluid size calculator
Generate CSS clamp() values that scale smoothly between mobile and desktop.
Headline analyser
Score a headline on length, clarity and power words — then make it sharper.
Website budget calculator
Get a fair price range for your website based on pages, features and timeline.
Redesign ROI calculator
Estimate how much extra revenue a better-converting website could bring in.
Project timeline estimator
Pick your scope and see a realistic week-by-week plan to launch.