ViralWiz

ViralWiz is a browser-based video editor for short-form creators who want captions, clips and publishing handled in one place. Upload a file (MP4, MOV, AVI or WebM up to 250 MB) or paste a YouTube or TikTok link, and the AI transcribes the audio into subtitles in roughly 30 seconds, in more than 50 languages.

What it does

• Animated captions: word-by-word karaoke subtitles with around 55 creator-inspired style presets, plus the option to save your own preset and reuse it.
• Viral clip detection: analyses long recordings, picks out the moments most likely to hold attention and cuts them into vertical 9:16 clips, with a reframe that tracks the speaker.
• Translation: context-aware subtitle translation aimed at spoken content, so slang and rhythm carry over.
• Thumbnails and B-roll: AI-generated thumbnails and automatic B-roll suggestions.
• Export and publish: download in 9:16, 16:9 or 1:1, or schedule posts straight to TikTok, YouTube Shorts, Instagram Reels, X and LinkedIn from the dashboard.

Processing runs in the cloud, so you can close the tab and be notified when a project is ready. There is a free tier to try it without a credit card; paid plans go up to about $59 per month, per the pricing page. It suits podcasters, coaches, streamers and solo creators repurposing long-form video.