PREVU

Inspect, validate, and preview Open Graph and Twitter Card metadata locally — before you ship.

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Why PREVU?

Most broken social previews show up only after deploy. PREVU runs on your machine so you can paste a localhost, staging, or production URL and see metadata, validation warnings, and platform previews before anything ships.

Screenshots

Home	Site scan

Batch testing	Staging vs production

Local URL / port testing

Features

• Inspect any URL (localhost, staging, or production)
• Extract Open Graph and Twitter Card tags
• Validate required tags, image dimensions, aspect ratio, and file size
• Social previews for Twitter/X, LinkedIn, Facebook, Discord, WhatsApp, and Slack
• Site monitor with progressive batched scans
• Batch inspect and staging vs production compare
• Clipboard URL helper and workspace save/load
• Shared Rust CLI: prevu inspect <url>

Download

Installers are published on the Releases page.

Platform	Artifacts
Windows	.exe (NSIS), .msi
macOS	.dmg / .app (Apple Silicon + Intel)
Linux	.AppImage, .deb, Arch AUR (prevu)

Builds are currently unsigned. Use the platform notes below if Gatekeeper or SmartScreen blocks the first launch.

Installation

Windows

1. Download PREVU_*_x64-setup.exe (or the .msi) from Releases.
2. Run the installer.
3. If SmartScreen appears: More info → Run anyway.

macOS

1. Download the .dmg for your architecture.
2. Open it, drag PREVU into Applications, then eject.
3. If macOS reports the app is damaged or blocked:

xattr -cr /Applications/PREVU.app

Or use System Settings → Privacy & Security → Open Anyway.

Linux

Arch (AUR)

yay -S prevu

AppImage

chmod +x PREVU_*_amd64.AppImage
./PREVU_*_amd64.AppImage

Debian / Ubuntu

sudo dpkg -i PREVU_*_amd64.deb
sudo apt-get install -f

WebKitGTK is required. On Ubuntu/Debian:

sudo apt-get install libwebkit2gtk-4.1-0

Quick start (development)

Prerequisites: Bun 1.3+, Rust stable, and platform Tauri dependencies.

bun install
bun run tauri:dev

Frontend only:

bun run dev

CLI:

bun run cli -- inspect https://example.com
bun run cli -- inspect https://example.com --json

More detail: docs/development.md and CONTRIBUTING.md.

Documentation

Doc	Description
docs/development.md	Local setup, scripts, architecture notes
docs/architecture.md	How the desktop app, parser, and CLI fit together
docs/webpage	Marketing website (version synced from root package.json)
CONTRIBUTING.md	Contribution workflow and conventions
CODE_OF_CONDUCT.md	Community standards

bun run website:dev

Project structure

prevu/
├── frontend/          # React + Vite + TypeScript UI
├── src-tauri/         # Tauri / Rust backend
├── cli/               # Shared-logic CLI
├── docs/              # Developer documentation
└── .github/workflows/ # PR checks, build, release

Tech stack

Layer	Technology
Desktop	Tauri 2 (Rust)
UI	React, Vite, TypeScript, Tailwind CSS
HTTP / HTML	reqwest, scraper
Images	image
Clipboard	arboard
Async	tokio

Contributing

Contributions are welcome. Please read CONTRIBUTING.md and CODE_OF_CONDUCT.md before opening a pull request.

Every PR must pass the mandatory PR Check workflow (Linux, Windows, and macOS builds).

Support

If PREVU helps you catch a broken preview before ship, you can support development here:

Buy Me a Coffee

License

MIT © Prevu Contributors