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Partner IntroVideo PackagingAI Video

Introducing ViralCaptions: Captions, Silence Cleanup and B-Roll via Editor or API

ViralCaptions is an AI caption and edit stack — animated captions, silence/B-roll edits and translations — available in a timeline editor and a clean REST API.

Introducing ViralCaptions: Captions, Silence Cleanup and B-Roll via Editor or API

Introducing ViralCaptions: Captions, Silence Cleanup and B-Roll via Editor or API

Most short-form video is watched on mute — so captions and clean pacing are not optional. ViralCaptions is an AI caption and editing stack available both as a loud little editor and as a REST API your engineers can call.

What ViralCaptions does

ViralCaptions centers packaging work creators and product teams actually ship:

  • Animated captions — 40+ styles with word-perfect timing across dozens of languages
  • AI edits — silence cleanup, punch-ins, B-roll and SFX from the same pipeline
  • Transcripts — word-level timestamps, speakers and confidence scores
  • Translate / dub — captions and dubs for multi-market posts
  • API + webhooks — /v1/captions, /v1/edits, /v1/translate with job polling

Explore:

Who it is for

Creators who want a fast caption editor, and SaaS/agency teams who need the same engine behind an API without rebuilding transcription infrastructure.

Where it fits in a content stack

ViralCaptions owns caption + light packaging on footage you already shot. Pair it with a long-to-short clipper when you still need moment finding, or with a storyboard tool when the next asset is a net-new explainer.

Quick tips if you try ViralCaptions

  1. Start in the editor on one Reel to lock a brand caption theme.
  2. Use the API once the style JSON is stable across clients.
  3. Review AI B-roll — stock inserts should match brand and rights.
  4. Export SRT when another NLE still owns the final grade.
  5. Write support@viralcaptions.com for Creator Pro or API questions.

Soft close — related tool

If you also need concept → storyboard → animated or whiteboard explainer / Reels (not talking-avatar presenters), see Scro Explainer. Scro (by NOVAX) is built around approving an AI storyboard before you render — useful when the video has to teach a process with new visuals, not only caption an existing take. Keep ViralCaptions as the focus of this intro; Scro is only a related option for storyboard-first explainers.