Skip to main content
All notable changes to ChatJS are documented here.
ChatJS is under active development. Breaking changes may occur between releases.

​
March 2026

​
Electron Desktop App

Package your ChatJS app as a native desktop application for macOS, Windows, and Linux. The CLI now asks Include an Electron desktop app? during create, and choosing Yes copies a pre-configured electron/ subfolder with a main process, preload script, system tray, deep-link OAuth flow, and auto-updater backed by GitHub Releases. See Electron Desktop App for full setup details.

​
February 2026

​
Video Generation

Generate short video clips from text prompts directly in chat, with inline playback. Enable via config.ai.tools.videoGeneration.enabled (requires a gateway with video model support).

​
Interactive Charts

The Python sandbox now renders interactive ECharts (line, scatter, bar) alongside matplotlib PNGs. Assign a value to the chart variable in your code to get an interactive chart.

​
Configuration Refactor

AI config is now unified under config.ai with workflows and tools blocks, replacing config.models and most config.features flags. In chat.config.ts, rename models → ai, move defaults → ai.workflows, and move tool flags into ai.tools.*.enabled.

​
Performance Improvements

Parallelized server-side fetches in the chat layout, API, and stream routes. Heavy UI components (editors, charts, code blocks) are now lazy-loaded with skeleton placeholders.

​
E2E Testing

Added a Playwright test suite covering auth, chat, reasoning, and artifact flows.

​
CLI (@chat-js/cli)

New scaffolding CLI to create ChatJS apps without cloning the repo. Run npx @chat-js/cli@latest create my-app to get an interactive setup that configures your AI gateway, features, and auth providers out of the box.

​
Initial Release

The first public release of ChatJS (formerly Sparka AI), forked from Vercel AI Chatbot with significant enhancements.

​
Multi-Model Support

Access 120+ models through Vercel AI Gateway. Switch between providers seamlessly without changing your code.

​
Authentication

Better Auth integration with support for GitHub, Google, and Vercel OAuth providers out of the box.

​
Resumable Streams

Continue AI responses after page refresh. Never lose a response mid-generation again.

​
Canvas

Create and edit text, code, and spreadsheet documents directly in your chat interface.

​
AI Tools

  • Web search - Real-time search via Tavily or Firecrawl
  • Code execution - Python sandbox with matplotlib, pandas, numpy
  • Image generation - AI-powered image creation
  • MCP support - Model Context Protocol for external tools
  • File attachments - Drag and drop images, PDFs, documents

​
Infrastructure

Built on a modern stack designed for production:
  • PostgreSQL with Drizzle ORM for the primary database
  • Redis for resumable streams and caching
  • Vercel Blob for file storage
  • tRPC for type-safe APIs
  • Better Auth for authentication

​
Developer Experience

  • Full TypeScript support throughout
  • Biome + Ultracite for fast linting and formatting
  • Evalite for AI evaluation
  • Docker support for containerized deployment