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Partner IntroVideo PackagingAI Video

Introducing Captions Generator: Fast, Private Captions Without a Watermark

Captions Generator is a free AI caption tool — video stays on your device, only audio is transcribed, then you style and export MP4 or SRT with no watermark.

Introducing Captions Generator: Fast, Private Captions Without a Watermark

Introducing Captions Generator: Fast, Private Captions Without a Watermark

Most caption tools either watermark the free plan or upload your whole video to a server. Captions Generator is a browser caption and subtitle tool — speech is transcribed from audio only, captions stay private on your device for preview/export, and the free plan ships MP4 or SRT without a watermark.

What Captions Generator does

Built solo by Ian, the product stays narrow on purpose:

  • Upload video, audio or SRT — AI transcription across ~100 languages
  • Edit & style — fix words, pick styles (8 free / 22 Pro), optional karaoke and keyword highlights
  • Copy style from a screenshot — match font/size/colors from captions you liked elsewhere
  • Hook titles — on-screen titles with safe-zone checks for TikTok / Reels / Shorts
  • Translate — 100+ languages; bilingual captions on Pro
  • Export — burned-in MP4 (free up to 1080p) plus SRT / VTT / TXT; video rendering stays local

Explore:

Who it is for

Creators and educators who already have a short take and just need readable, styled captions — without signing up for a full editor or accepting a watermark.

Where it fits in a content stack

Captions Generator owns caption polish. Clippers and B-roll tools can produce the cut; this tool finishes readability and accessibility. Complementary to storyboard-first explainers used when the lesson itself still needs visual structure.

Why private captions still matter

If only the audio leaves the device, draft videos and client footage stay out of another vendor’s media vault. That is a practical win for coaches, agencies and anyone under NDA.

Quick tips if you try Captions Generator

  1. Try free, no sign-up on a 1–3 minute Reel first.
  2. Fix proper nouns in the transcript before you burn captions in.
  3. Copy a style from a screenshot when a competitor’s caption look works.
  4. Export SRT when YouTube should keep captions toggleable.
  5. Email support@captionsgenerator.app — Ian replies himself.

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 captions alone are not enough and the idea still needs a visual explanation. Keep Captions Generator as the focus of this intro; Scro is only a related option for storyboard-first explainers.