# OpenDisplay

Turns a spare iPhone, iPad, Mac, or Android device into a true extended display for your Mac, with no subscription.

HTML: https://softbests.com/software/opendisplay
Markdown: https://softbests.com/software/opendisplay.md
Website: https://opendisplay.app

- Category: [Productivity](https://softbests.com/category/productivity)
- Pricing: Open source
- Platforms: macOS, iOS, Android
- Underrated

## Best for

Mac users with a spare screen-sized device who do not want to pay for Sidecar alternatives.

## Why it deserves attention

OpenDisplay streams a genuine extended desktop rather than a mirror, keeps Retina sharpness, and works over USB or Wi-Fi with touch and scroll input. It supports iPhones, iPads, spare Macs, and Android devices in beta, with Linux sender and receiver also in beta, and replaces Apple Sidecar, Duet Display, and Luna Display without a subscription. It is GPLv3, free, and has about 6,000 GitHub stars. The maintainer is away until November 17, 2026, so reviews and releases are slow, and non-Apple platforms are still beta quality.

## Can replace

- Duet Display
- Luna Display
- Apple Sidecar

## Related and alternatives

- [BetterDisplay](https://softbests.com/software/betterdisplay)
- [Mos](https://softbests.com/software/mos)