Oval – Native macOS client for self-hosted Open WebUI

Summary: Oval is a native macOS app designed for self-hosted Open WebUI, offering a fast, private AI experience without relying on browsers or Electron. It features streaming markdown chat, voice mode with on-device Whisper STT and Piper TTS, quick access via Ctrl+Space, web search, citations, and tool calls, with all traffic routed to the user’s server.

What it does

Oval runs Open WebUI natively on macOS using SwiftUI, enabling voice interaction through local Whisper and Piper models, and provides a floating chat window accessible system-wide via Ctrl+Space.

Who it's for

It targets macOS users who self-host Open WebUI and want a lightweight, private client without browser or Electron overhead.

Why it matters

Oval eliminates the need for browser tabs or heavy Electron apps, ensuring local processing and direct server communication for privacy and performance.