YouTube Shorts caption generator

YouTube Shorts Caption Generator

Caption vertical Shorts with readable hooks, fast review, and export options for SRT or rendered captions.

MP4MOVWebM9:16 videoSRT export

Last updated: July 24, 2026.

Vertical video captions

Start a Shorts caption project

Best for 9:16 clips, talking-head videos, podcast cuts, tutorials, and creator hooks.

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Nothing is uploaded or stored from this page. After signing in, choose the file again to start your project.

Overview

Make Shorts easier to watch on mute

YouTube Shorts move quickly, and many viewers decide in the first few seconds whether to keep watching. Captions help hooks land when the phone is muted, the viewer is in a noisy place, or the speaker is moving fast. Filmizzy helps you create a timed caption draft, clean up the first lines, and export subtitles for your Shorts workflow.

Shorts has its own visual furniture stacked on top of the video — like/comment/share icons and the channel name sit along the right edge and lower third of the frame. A caption position that looks fine in a plain video preview can end up hidden behind that UI once it's actually in the Shorts feed, so it's worth previewing caption placement against a real Shorts layout, not just the raw clip.

Real input and output

Shorts caption example

Original

Audio: "Agar tum reels edit karte ho, yeh timing trick save kar lo."

Generated caption

Agar tum reels edit karte ho, yeh timing trick save kar lo.

1
00:00:00,060 --> 00:00:02,900
Agar tum reels edit karte ho,
yeh timing trick save kar lo.

The caption is split for mobile readability and keeps the hook visible without becoming a paragraph.

How it works

How youtube shorts caption generator works

The page content is crawlable without logging in, and the generation workflow starts from a clear upload and review path.

01

Upload a vertical clip

Start with a short video and choose the spoken language before processing.

02

Generate captions

Create a timed caption draft for the spoken hook and body.

03

Tighten the first seconds

Review the opening caption, split long lines, and remove filler when needed.

04

Export for Shorts

Use SRT for platform captions or render visible captions directly.

Use cases

Who this page is for

Podcast clips

Turn useful moments into captioned Shorts without transcribing the whole episode manually.

Creator hooks

Make fast spoken hooks readable for viewers watching without sound.

Tutorial snippets

Caption steps and explanations so the tip stays understandable on mobile.

Supported formats and languages

  • MP4
  • MOV
  • WebM
  • 9:16 video
  • SRT export
  • Captioned video export
  • Hinglish
  • Hindi
  • English
  • Roman Hindi
  • Manual hook review

Benefits

  • Readable captions can improve mute viewing.
  • Short lines are easier to scan in vertical feeds.
  • SRT export keeps the subtitle file reusable.

Limitations

  • Very fast speech may need extra line splitting.
  • Captions should be checked against faces, UI, and platform overlays.
  • AI may miss slang or names in quick hooks.

Comparison

Choose the right caption workflow

Shorts captions vs long-form subtitles

Shorts captions need to survive a glance — short lines, an early hook, and text that doesn't compete with on-screen UI.

Long-form subtitles can run longer per line since the viewer has already committed to watching, and no feed UI overlaps the frame.

SRT vs burned-in for Shorts specifically

SRT keeps the caption editable if you re-cut the Short or reuse the clip somewhere else.

Burned-in captions guarantee every viewer sees the text even if they watch with platform captions turned off.

FAQ

Questions people ask before generating captions

Where should captions sit in a 9:16 frame?

Away from the right-edge icon stack and the lower-third channel name — both are part of the Shorts feed UI, not your video.

How short should a caption line be for Shorts?

Short enough to read in under a second or two. Split long sentences rather than letting one line run the width of the screen.

Does the opening line matter more here than elsewhere?

Yes — most Shorts viewers decide whether to keep watching within the first couple of seconds, so the hook caption is worth extra review.

Can Filmizzy handle Hindi-English Shorts?

Yes, Hinglish and Roman Hindi are core supported modes alongside English.

SRT or burned-in captions for Shorts?

SRT if you might re-edit the clip later; burned-in if you want the text visible regardless of viewer caption settings.

Start now

Caption your next YouTube Short

Upload a vertical clip, check the hook, and export captions that are readable in the feed.

Upload your video

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