Free viral video tools
Free social media tools built on the Vyrex viral intelligence engine. Check viral potential, analyze hooks, spot trending formats, find the best time to post, and optimize captions — instant results, no account required.
Viral Score Checker
Paste a URL — get an instant 0–100 viral potential score.
Hook Analyzer
Score your opening line against proven viral hook archetypes.
Trending Sounds & Formats
See what's working right now across platforms.
Best Time to Post
Data-informed posting windows for your platform and niche.
Caption & Hashtag Optimizer
Turn a video idea into a platform-ready caption + hashtags.
FAQ
- Are these Vyrex tools really free?
- Yes. Every tool on this page gives you instant results with no signup. Daily limits apply to keep abuse down; request access for unlimited use inside the full Vyrex platform.
- Which platforms do the tools support?
- TikTok, Instagram Reels, and Facebook video URLs are supported for the viral score checker. Hook, caption, and timing tools work across all short-form platforms.
- How is the viral score calculated?
- We combine public engagement metadata with the same scoring engine Vyrex uses internally — hook strength, engagement velocity, share ratio, and a retention proxy. Full Grok analysis is available inside Vyrex after access.
- Do I need the Chrome extension?
- No. These web tools work standalone. The extension adds one-click analysis while you browse and syncs to your private library.