Mobile App Screen Snippets — Free HTML CSS JS UI Kit

A component library is only half of what a mobile app UI needs — the other half is seeing those components composed into a real screen, at real device proportions, inside a frame that reads instantly as "phone." This collection is a set of complete, interactive mobile app screens — chat, settings, social feed, checkout, banking, music player, food ordering, ride-hailing, calendar, fitness, camera, stories, notifications, and search — each built inside a shared 288×600 CSS phone frame with a working status bar, and each fully interactive: type a message, toggle a switch, add an item to a cart, scrub a seek bar. Every screen is plain HTML, CSS, and vanilla JavaScript, with no dependency and no native app shell required.

Every snippet exports to React, Vue, Angular, and Tailwind from the same source, so the same screen works as a static prototype today and a real component tomorrow.

A shared device frame, unique screen logic

Every screen shares the same phone-frame shell — rounded corners, a notch-free status bar showing the time and a battery glyph, and a fixed 288×600 canvas — so screens can sit side by side in a flow (login → feed → profile) and read as one consistent app. Inside that frame, each screen owns its own class-prefixed CSS and JavaScript, so nothing leaks between snippets and you can lift any single screen out on its own.

Real interaction, not static mockups

Unlike a flat image mockup, these screens actually work. The chat screen has a live typing indicator and a composer that echoes a reply. The settings screen has a working group-aware search filter and a dark-mode switch that repaints the whole screen. The checkout screen recalculates its total live as you adjust quantities or apply a promo code. The fitness screen's three activity rings sweep up from empty using SVG stroke-dashoffset. The stories viewer auto-advances its segmented progress bars and lets you tap to navigate or hold to pause. This is what separates a UI kit you can actually prototype with from a picture of one.

Composition-level patterns

These screens combine primitives you'd otherwise assemble by hand — toggle switches, list rows, cart totals, seek bars, calendars — into a finished, realistic composition. That's the same reason Pricing and Heroes are their own categories instead of scattered across Cards and Layouts: a mobile screen is a distinct genre of thing to reach for, not just "a layout that happens to be narrow."

Device-frame extras

Alongside the app screens proper, this category also includes the standalone full-screen states every app needs somewhere: a splash screen, a paywall screen, a camera capture UI with a working shutter and flash, a numeric dialer keypad, an app-store listing card, and a wallet/pass card — the connective-tissue screens that round out a complete app flow.

Reusing them

Swap the seeded data for your real API responses, wire the buttons to your router, and lift any screen out of its phone frame entirely for a responsive web layout — the frame is just a wrapper div, not a requirement. Chain several screens together (login → onboarding → feed → profile) inside a phone mockup to pitch a full app flow to a client or stakeholder without writing a single native line of code.