# Open Url

> Open URLs, files, and applications on macOS. Use for launching browsers, opening documents, or starting apps.

- Skill: `mikeyobrien/open-url-2` (Agent Skill)
- Install (CLI): `npx skillmds@latest add mikeyobrien/open-url-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mikeyobrien/open-url-2/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: mikeyobrien (https://skillmd.com/u/mikeyobrien)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/mikeyobrien/open-url-2

---


# Open URLs and Files

## Open a URL in default browser
```bash
open https://example.com
```

## Open a file with default app
```bash
open document.pdf
open image.png
```

## Open with a specific app
```bash
open -a "Safari" https://example.com
open -a "Visual Studio Code" project/
open -a "Finder" /path/to/directory
```

## Reveal in Finder
```bash
open -R /path/to/file
```

## Open a new Finder window
```bash
open .
```