Free Tools

Developer Tools

Free, no sign-up tools for mobile deep linking and iOS Universal Links — from the team building LinkForty.

iOS

AASA Validator

Check any domain’s apple-app-site-association file for iOS Universal Links — hosting, format, structure, and app ID matching.

Open tool
Open Graph

Social Share Preview

See how a link’s share card renders on Facebook, X, LinkedIn, Slack, iMessage, Reddit and Bluesky — each platform fetched separately, so you catch the ones that only break somewhere.

Open tool