# Svelte Virtual Chat vs svelte-tiny-virtual-list A chat-aware Svelte viewport compared with a compact generic virtual list. ## Overview Compare @humanspeak/svelte-virtual-chat with svelte-tiny-virtual-list for Svelte 5 chat interfaces. Both virtualize long lists, but Svelte Virtual Chat includes streaming-safe follow-bottom, anchored history prepends, message identity, and automatic measurement for growing conversation content. - **Svelte Virtual Chat site:** https://virtualchat.svelte.page - **Svelte Virtual Chat npm:** https://www.npmjs.com/package/%40humanspeak%2Fsvelte-virtual-chat - **Svelte Virtual Chat slug:** svelte-virtual-chat - **Category:** Svelte Virtual List Component - **Approach:** Generic windowing with explicit item-size inputs - **Website:** https://github.com/jonasgeiler/svelte-tiny-virtual-list#readme - **GitHub:** https://github.com/jonasgeiler/svelte-tiny-virtual-list - **npm:** https://www.npmjs.com/package/svelte-tiny-virtual-list ## Feature comparison | Feature | @humanspeak/svelte-virtual-chat | svelte-tiny-virtual-list | Notes | | --- | --- | --- | --- | | Svelte 5 support | Yes | Yes | | | Chat-aware follow-bottom | Yes | No | | | Streaming height correction | Same-frame correction | No | | | History prepend anchoring | Yes | No | | | Message identity | getMessageId | Array index | | | Automatic variable-height measurement | Yes | No | | | Sticky indices | No | Yes | | | Horizontal virtualization | No | Yes | | | Programmatic scrolling | Message ID or bottom | Index | | ## Svelte Virtual Chat strengths - Follow-bottom stays pinned while new messages and streaming tokens arrive - Scrolling away releases follow-bottom without new content pulling the reader back - Prepending older history preserves the visible message and its viewport offset - In-frame height correction keeps growing messages stable before paint - getMessageId tracks conversation identity instead of array position - Automatic variable-height measurement for rendered message content - Svelte 5 snippets, runes, TypeScript generics, and an imperative chat API - Chat behavior is part of the component contract instead of application wiring ## svelte-tiny-virtual-list strengths - Compact, dependency-free generic virtual-list component - Supports vertical and horizontal layouts - Supports sticky indices for pinned rows such as date separators - Accepts fixed, array-based, or function-based item sizes ## Svelte Virtual Chat limitations - Purpose-built for vertical message timelines rather than generic lists, grids, or tables - Does not currently support sticky indices or document-window scrolling - Newer package with a smaller user community and ecosystem ## svelte-tiny-virtual-list limitations - Follow-bottom and scroll-away behavior must be implemented by the application - History prepends require application-level anchor capture and restoration - Growing streaming messages require manual measurement and scroll correction - Variable heights rely on supplied sizes or explicit recomputation ## Verdict Choose svelte-tiny-virtual-list for a small generic Svelte 5 virtual list, especially when horizontal layouts or sticky indices matter. Choose @humanspeak/svelte-virtual-chat when the list is a conversation and stable streaming, follow-bottom, history loading, and message identity should work as one component contract. ## Keywords svelte-tiny-virtual-list alternative, svelte virtual chat vs svelte-tiny-virtual-list, svelte 5 chatbot virtual list