WEB DOCTOR
What Web Doctor checks before a page ships
A practical look at the public HTML, metadata, and technical signals Web Doctor reads, including the limits of its report.
7 min read08 / Lab notes
Behind the tools.
Practical notes about how each Lab tool works, what its output means, and where its limits begin.
Meta Tag Generator
Writing page metadata without guessing
How to draft a clear title and description without treating character counts as ranking rules.
5 min readColour Contrast Checker
Checking colour contrast before shipping a UI
A focused way to compare foreground and background colours, with clear limits on what a passing ratio proves.
5 min readCSS Clamp Generator
Using CSS clamp without doing the maths every time
How bounded fluid values work, what the generator calculates, and when a breakpoint is clearer.
6 min readOpen Graph Preview
Checking a sharing preview before publishing
A practical way to review Open Graph copy and image intent while remembering that platforms control the final card.
5 min readSVG ↔ Base64 Converter
When I use readable SVG and when I use Base64
Choosing between an SVG file, readable markup, Base64, and a URL-encoded data URI without making the asset harder to maintain.
6 min readImage Compressor
Making images smaller without uploading them
How browser image compression changes format and quality, and why the smallest file is not always the best result.
4 min readImage Resizer
Resizing images without distorting them
A simple explanation of pixel dimensions, aspect ratio and what happens when a browser creates a resized copy.
4 min readImage Format Converter
Choosing between WebP, JPEG and PNG
What changes during browser image conversion and how to choose a sensible output format.
4 min readImage Cropper
Cropping images for common layouts
How aspect ratios change framing and how the browser cropper chooses which part of an image remains.
4 min readPDF Merger
Joining PDF files in the browser
How the PDF Merger copies pages into one local document and what to check before sharing the result.
4 min readPDF Compressor
What browser PDF compression can change
A clear account of structural PDF compression, its limits and why some files cannot become smaller safely.
4 min readQR Code Generator
Creating a QR code that remains usable
How QR content, contrast, output size and real-device testing affect a code people can scan.
4 min readRandom Picker
How the Random Picker chooses an item
How choices are parsed, how a secure browser random value selects one, and what fairness still depends on.
4 min read