HTML Viewer

Write, preview and fix HTML, CSS and JavaScript on your phone, with AI help built in.

50+Ready templates

AI StudioGenerate and fix code

GitHubBrowse and sync repos

Install from Google Play See web tools

AI Studio — generate, fix and improve code with AI

Developer tools — snippet library, accessibility checker, HTML stats

Workspace — multi-file projects with tabs and folders

Swipe to see more

A full HTML, CSS and JavaScript editor for Android — for web developers prototyping away from a desk, students learning to code, and designers checking how a page looks.

AI Studio

Generate HTML, CSS and JavaScript from a plain description
Fix broken code automatically
Analyse and explain existing code

Editor and workspace

Multi-file projects with a folder tree, not just single files
Tabbed editing for HTML, CSS and JS
Syntax highlighting with 5 themes — Monokai, Dracula, GitHub, VS Dark, Atom One Dark
Auto-indent, auto-close tags, quick-insert snippets
Version history — restore any of your last 10 saves
Auto-save and crash recovery

Preview and check

Live HTML rendering in a full WebView
Device emulator bar for responsive testing
Detect unclosed tags, missing attributes and syntax errors
Tap any error to jump straight to that line

Sync and tools

FTP upload straight to your live server
GitHub integration to browse and sync repositories
50+ templates — landing pages, portfolios, e-commerce, pricing tables
Accessibility checker, SEO meta tag generator, image-to-Base64, HTML minifier
Offline HTML/CSS reference guide

If you're already at a desktop, you have a browser and a text editor — the app exists for when you don't. There's no web version of the editor planned.

The developer tools bundled inside the app are a better fit for the browser, and those are being built as free web tools here.

QR Code Generator

Turn any link or text into a downloadable QR code.

In build

See all web tools →

My project files disappeared

Open Version history from the editor menu — the last 10 saves of any file can be restored. Auto-save also keeps a recovery copy if the app closed unexpectedly.

GitHub sync isn't connecting

GitHub requires a personal access token rather than your password. Generate one in your GitHub settings under Developer settings → Personal access tokens, with repo scope enabled.

The preview looks different from a desktop browser

Preview runs in Android's WebView, which is Chrome-based but can lag behind desktop Chrome on newer CSS features. The device emulator bar helps check layout, but test on a desktop browser before publishing.

Something isn't working

Email support@nexlabstudios.com with your phone model and what you were doing when it happened.