Why a reference app at all
Every property in CSS is already documented somewhere on the web. What is not always available is the web.
Tethering on a train, a laptop that has died, a phone with 3% signal, a flat where the router is out — the moments you most want to check how align-items differs from align-content are often the moments you cannot open a browser tab. Webforge exists for those, which is why the entire library, every example and the playground are compiled into the APK.
The second reason is that reading documentation does not teach much. You skim a property, nod, and forget it by the next screen. Changing a value and watching the box move is a different kind of memory, and it is the thing a phone is genuinely good at: it is already in your hand.
No account, no sync, no telemetry, nothing to buy. One person writes it, one company signs it, and the file you download is the whole product.
Webforge — an offline HTML & CSS reference
Every concept comes with a live example you can actually touch, not a code block you scroll past.
The library covers HTML elements and attributes and CSS properties grouped by topic — layout, flexbox, grid, typography, colour, transitions, transforms, positioning — each with a plain explanation, the syntax, and a working example. Edit the HTML and CSS of any example and the result re-renders as you type, or start from a blank canvas and build something; experiments are saved on the device so you can pick them up later. Cheat-sheet mode strips it back to bare syntax for when you already know what you want, search jumps straight to a property, and guided snippets show the patterns everyone actually needs — centring a thing, building a card, making a layout survive a narrow screen.
Three fixed boxes, one property group, no typing. In the app the code panel is the input rather than the output: you write it, anything renders, and what you build stays on your device.
Rekilo Limited — the company
Snippetlab is the name Rekilo Limited publishes its apps under. The company is registered in England and Wales, and the code, the artwork, this website and the Google Play account are all handled from one address in Huddersfield.
- company Rekilo Limited
- director Oliver Andrew Ker
- address 12 New North Parade, Huddersfield, HD1 5JP, United Kingdom
Found a wrong example, want a property covered, or have a question about privacy? Mail goes straight to the person who wrote the app.
inspect@rekilo.topSnippetlab is a trading name of Rekilo Limited, registered in England and Wales at 12 New North Parade, Huddersfield HD1 5JP. Webforge, its library text and its artwork belong to the company; the Webforge privacy policy applies to the Android application com.snippetlab.webforge. Code shown on this page is illustrative CSS and belongs to no one. Copyright 2026.