FlinUI Complete: 365+ Components

Session 037 gave us 70 components. Session 038 added 30 more. Then the count kept climbing. By the time FlinUI stabilized, the library contained over 365 production-ready components -- more than one for every day of the year. Enough to build any web application without creating a single custom component.

This is not about the number. Any library can inflate its count by splitting a Card into CardHeader, CardBody, and CardFooter and counting each as a separate component. What matters is coverage: can a developer build a real application -- a SaaS dashboard, an e-commerce store, a content management system, an analytics platform -- using only FlinUI components and their own business logic?

The answer is yes. Here is how we got there.

The Growth Trajectory

Each batch was driven by a specific use case. We did not build components speculatively. We built them because a real project needed them.

The Category Map

Basic (25 components)

The foundation. Buttons, inputs, text, images, avatars, badges, tags, links, icons, dividers, and their variants. These are the atoms that everything else is built from.

<Button variant="primary" size="lg">Get Started</Button>
<Avatar name="Juste Gnimavo" size="xl" />
<Badge variant="success">Active</Badge>
<Tag closable={true}>Category</Tag>

Layout (15 components)

Container, Stack, Grid, Flex, Box, Divider, Spacer, Center, AspectRatio, Wrap, Split, Sidebar (layout variant), Section, Header, Footer. These control spatial arrangement without requiring custom CSS.

<Split ratio="1:3">
    <Sidebar>
        <NavMenu items={menu_items} />
    </Sidebar>
    <main>
        <Container size="lg">
            <Grid cols={3} gap={6}>
                {for product in products}
                    <ProductCard product={product} />
                {/for}
            </Grid>
        </Container>
    </main>
</Split>

Data Display (40 components)

Card, Table, DataTable, List, Tree, Timeline, Accordion, Stats, Code, Kbd, Description, Calendar, Kanban, Gantt, Heatmap, Metric, Comparison, Diff, JSON viewer, and more. This is the largest category because displaying data is what most applications spend most of their time doing.

<DataTable
    data={users}
    columns={[
        { key: "name", label: "Name", sortable: true },
        { key: "email", label: "Email" },
        { key: "role", label: "Role", filterable: true },
        { key: "created_at", label: "Joined", format: "relative" }
    ]}
    searchable={true}
    paginated={true}
    page_size={25}
/>

The DataTable component alone handles sorting, filtering, searching, pagination, column resizing, row selection, and custom cell rendering. It replaces entire libraries like AG Grid or React Table.

Forms (30 components)

Form, FormField, FormError, FormHelp, DatePicker, TimePicker, DateRangePicker, ColorPicker, FileUpload, Autocomplete, PinInput, PhoneInput, CurrencyInput, TagInput, RichTextEditor, CodeEditor, Signature, Rating, Slider, RangeSlider, Toggle, RadioGroup, CheckboxGroup, Stepper, Wizard, OTPInput, AddressInput, SearchInput, ComboBox, NumberInput.

<Form submit={handle_submit()}>
    <FormField label="Full Name" required>
        <Input value={name} />
    </FormField>
    <FormField label="Phone Number">
        <PhoneInput value={phone} country="CI" />
    </FormField>
    <FormField label="Amount">
        <CurrencyInput value={amount} currency="XOF" />
    </FormField>
    <FormField label="Rating">
        <Rating value={rating} max={5} />
    </FormField>
    <Button type="submit" variant="primary">Submit</Button>
</Form>

The PhoneInput component formats phone numbers by country code. The CurrencyInput handles locale-specific formatting (decimal comma vs. decimal point, thousands separators). These are the components that take weeks to build from scratch and minutes to use from FlinUI.

Feedback (20 components)

Alert, Toast, Modal, Drawer, Popover, Tooltip, Notification, Confirm, Dialog, Banner, Callout, Snackbar, ProgressToast, LoadingOverlay, EmptyState, ErrorBoundary, Skeleton, SkeletonText, SkeletonAvatar, SkeletonCard.

// Confirmation dialog
<Confirm
    title="Delete User"
    message="Are you sure you want to delete this user? This action cannot be undone."
    confirm_label="Delete"
    confirm_variant="danger"
    onConfirm={delete_user(user.id)}
    onCancel={show_confirm = false}
/>

// Empty state Compose} /> ```

Navigation (20 components)

Navbar, Sidebar, Tabs, Breadcrumb, Pagination, Menu, ContextMenu, CommandPalette, Stepper, BottomNav, LinkBox, SkipNav, MegaMenu, Dropdown, ActionMenu, TableOfContents, ScrollSpy, BackToTop, NavDrawer, StepIndicator.

Charts (25 components)

LineChart, BarChart, PieChart, DonutChart, AreaChart, ScatterPlot, RadarChart, TreeMap, Histogram, BoxPlot, CandlestickChart, FunnelChart, GaugeChart, SankeyDiagram, BubbleChart, WaterfallChart, Sparkline, MiniChart, ChartLegend, ChartTooltip, ChartAxis, ChartGrid, ChartAnnotation, ResponsiveChart, DashboardChart.

Enterprise (40 components)

DataGrid, Pivot, Report, Invoice, Receipt, OrgChart, Workflow, Approval, Audit, Compliance, Permission, RoleEditor, TenantSwitcher, BulkAction, ImportWizard, ExportDialog, AuditLog, ActivityFeed, StatusBoard, KPIDashboard, and more. These are the components that SaaS applications need but that no open-source library provides out of the box.

PRO AI/Chat (25 components)

AIChatbot, ChatInput, ChatMessages, ChatBubble, ChatAvatar, TypingIndicator, ReasoningPanel, ModelSelector, TokenCounter, StreamingText, CodeBlock, MarkdownRenderer, Prompt, PromptLibrary, SystemMessage, FunctionCall, ImageGeneration, VoiceInput, VoiceOutput, Transcription, TranslationPanel, SentimentDisplay, EntityExtractor, SummaryView, ComparisonView.

// Complete AI chat interface
<AIChatbot
    title="FLIN Assistant"
    model="claude-sonnet-4-5"
    showReasoningPanel={true}
    onMessage={handle_message}
>
    <ChatMessages messages={messages} showAvatars={true} />
    <ChatInput
        placeholder="Ask me anything..."
        onSend={send_message}
        showVoiceInput={true}
    />
</AIChatbot>

E-Commerce (35 components)

ProductCard, ProductGrid, ProductDetail, CartItem, CartSummary, Checkout, PaymentForm, AddressForm, ShippingOptions, OrderSummary, OrderHistory, OrderDetail, Wishlist, CompareProducts, ReviewForm, ReviewList, PriceDisplay, DiscountBadge, StockIndicator, CategoryNav, FilterPanel, SortControl, QuickView, ImageGallery, SizeSelector, ColorSelector, QuantityInput, PromoCode, Subscription, PlanSelector, PricingTable, InvoiceView, ReceiptView, RefundForm, ReturnRequest.

Mobile-First (25 components)

SwipeAction, PullToRefresh, BottomSheet, ActionSheet, FloatingButton, InfiniteScroll, VirtualList, Carousel, ImageViewer, VideoPlayer, AudioPlayer, Share, QRCode, Barcode, NativeSelect, NativeDatePicker, Haptic, OfflineIndicator, InstallPrompt, SplashScreen, Onboarding, SwipeCard, MapView, LocationPicker, DeviceInfo.

The API Consistency

Across 365+ components, the API follows consistent patterns:

Variant prop for visual style: ``flin ``

Size prop for dimensions: ``flin

``

Event handlers as props: ``flin

``

Children for content: ``flin

Click me

Content here

A developer who learns the Button API understands the pattern for all 365 components. Variant for style. Size for dimensions. Event handlers for interaction. Children for content.

The File Size

The entire FlinUI library is approximately 2.1 MB of .flin source files. Compiled into bytecode, the components used by a specific application are tree-shaken -- only the components actually referenced are loaded. A simple application using 20 components loads approximately 50KB of component bytecode. A complex dashboard using 100 components loads approximately 200KB.

For comparison: - Material UI (React): 2.1 MB minified JavaScript (for the full library) - Ant Design (React): 1.6 MB minified JavaScript - Vuetify (Vue): 950KB minified JavaScript - FlinUI (FLIN): ~50-200KB compiled bytecode (only used components)

The difference is not the source size -- it is the loading strategy. JavaScript UI libraries ship the entire library to the browser. FlinUI loads only what the application uses.

What 365 Components Enable

With 365+ components, a developer can build:

A SaaS dashboard using DataTable, Chart, Stats, Sidebar, Navbar, Modal, Form, Tabs, Breadcrumb, Pagination, Alert, Toast.

An e-commerce store using ProductGrid, ProductDetail, Cart, Checkout, PaymentForm, ImageGallery, ReviewList, FilterPanel, SortControl, PricingTable.

A content management system using RichTextEditor, FileUpload, DataTable, Modal, Form, Tabs, Tree, ImageGallery, Markdown, Calendar.

An AI chat application using AIChatbot, ChatMessages, ChatInput, ModelSelector, ReasoningPanel, CodeBlock, MarkdownRenderer, StreamingText.

A mobile-first application using BottomSheet, SwipeAction, PullToRefresh, FloatingButton, InfiniteScroll, BottomNav, Carousel.

No custom components needed. No CSS framework to learn. No third-party library to install. Just FLIN code and FlinUI components.

// A complete admin dashboard in one file
users = User.all
orders = Order.where(status: "active")
revenue = orders.sum(o => o.total)

Dashboard Users Orders Settings

One file. Zero imports. A complete admin dashboard with sidebar navigation, statistics cards, and a searchable, sortable data table. That is the power of 365 components available without a single import statement.

The Completeness Standard

How do you know when a component library is "complete"? Our standard was practical: take three real-world application designs (a SaaS dashboard, an e-commerce storefront, and a content management system) and attempt to build them using only FlinUI components. Every time we reached for a component that did not exist, we added it to the backlog.

The first pass found 47 missing components. The second pass (after building those 47) found 12 more. The third pass found 3. By the fourth pass, we could build all three applications without creating a single custom component.

That does not mean FlinUI has every component imaginable. It means FlinUI has every component that appears in the three most common application archetypes. Niche components (a periodic table viewer, a music notation editor, a genome browser) are left to domain-specific extensions. But the 90% of UI that every application shares -- navigation, data display, forms, feedback, layout -- is covered completely.

Versioning and Stability

FlinUI components follow FLIN's release cycle. Each component's props are considered part of the public API. Removing a prop or changing its type is a breaking change that requires a major version bump. Adding a new optional prop is a minor change. Bug fixes are patch changes.

This stability guarantee is essential for a component library. A developer who builds their application on needs confidence that searchable will still work in the next release. The commitment to API stability is what makes 365 components a foundation rather than a liability.

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This is Part 83 of the "How We Built FLIN" series, documenting how a CEO in Abidjan and an AI CTO built a 365-component UI library for a programming language.

Series Navigation: - [82] From Zero to 70 Components in One Session - [83] FlinUI Complete: 365+ Components (you are here) - [84] Charts and Data Visualization Components - [85] Design Tokens and Theming System