Useful tools for better digital experiences
Focused, practical tools for checking SEO, accessibility, content and everyday web decisions without unnecessary complexity.
A place to check, test and improve
The Lab turns common digital tasks into clear, useful tools. Each one is designed to solve a focused problem quickly and explain what the result means.
SEO & content
Shape clearer search content
Preview search snippets, check headings and make important page information easier to understand.
Accessibility
Design for more people
Check colour contrast and other practical details that influence whether an experience is usable.
Web & design
Make better everyday decisions
Use small calculators and visual checks for responsive layouts, content and interface choices.
Tools in the Lab
Explore free, focused tools for SEO, accessibility, content and web design. Every tool runs directly in your browser and explains what the result means.
16 tools found
Accessible Form Error Message Builder
Create a clearer inline form error, linked error-summary item and accessible HTML starting point without sending form details anywhere.
Accessible Colour-Palette Builder
Build a five-colour palette and compare every pair against common WCAG text-contrast thresholds.
Structured-Data Generator
Generate editable JSON-LD starting points for common page, organisation, article, FAQ and web-application schema.
Reading-Time Estimator
Estimate reading and speaking time from a draft using an adjustable words-per-minute rate.
Aspect-Ratio Calculator
Simplify an aspect ratio, calculate matching dimensions and generate a CSS aspect-ratio declaration.
CSS clamp() Calculator
Generate a CSS clamp() expression for fluid spacing, typography, widths and other responsive values.
Responsive Typography Calculator
Generate and preview fluid typography that scales between readable minimum and maximum sizes.
Meta Robots Builder
Build a meta robots tag and understand how indexing, link-following and snippet directives affect a page.
Link-Text Accessibility Checker
Review whether link labels remain clear when read out of context and identify vague or repeated wording.
URL & Slug Checker
Review a proposed page URL and generate a concise, readable lowercase slug with consistent hyphenation.
Image SEO & Accessibility Checker
Review an image’s filename, dimensions, file size and alternative text before uploading it to a website.
Readability & Content Clarity Checker
Review sentence length, paragraph density, passive phrasing and reading ease without treating a score as a writing rule.
Social & Open Graph Preview
Preview a page title, description, URL and sharing image before publishing or sharing a page.
Heading Structure Checker
Turn HTML or a heading list into a clear outline and find structural issues worth reviewing.
Colour Contrast Checker
Check two colours against common WCAG contrast thresholds for normal and large text.
SERP Snippet Preview
Preview a page title, description and URL before publishing, with practical search-result length guidance.
Simple tools with useful explanations
01
Choose a focused tool
Start with one clear task rather than a complicated dashboard.
02
Check it in your browser
Use the tool directly without creating an account or installing software.
03
Understand the result
Get enough context to decide what to improve next.
Built to be useful, not overwhelming
Digital Hub Lab tools will be free to use, focused on practical outcomes and designed to work across platforms.