✦ #1 AI Subtitles Generator

The #1 AI Subtitles Generator with Person Masking

Captions with real depth, not a flat bar. Get subtitles that read the frame — sliding behind your subject or dodging their face — automatically.

Upload a videoSee how it works

It's still freeupgrade your content to reach another level

Drop a talking-head video here

or click to browse — MP4, MOV, WebM

33+ Themes — our AI picks the best subtitle position in one click.

A caption theme automatically positioned around the speaker in a moving clip
Concept preview — placeholder, local only

Sit relax — we auto-detect behind you and add subtitles in one click :)

No editing skills, no timeline to fiddle with

Aa

Word-level sync, done automatically

33+ ready-made caption themes to pick from

Runs almost entirely in your browser

Get the best subtitles — in front or behind — for your next reel.

Depth-aware placement means your captions never fight for space with your face — the layout adapts automatically, every single frame.

Subtitles automatically switching between in front of and behind the speaker

This is the actual editor

Not a mockup — this screenshot is the real interface: theme picker, per-segment controls, and a scrubbable timeline, all in one screen.

Bloop Studio's editor: video preview with a bold caption theme applied, segment list, theme picker, and timeline

Three steps to a polished reel

No timeline scrubbing, no manual keyframes.

Drop your video here

or click to browse — MP4, MOV, WebM

AI reading the frame to segment the person from the background
Bloop Studio's editor: video preview with a bold caption theme applied, segment list, theme picker, and timeline
Step 1 of 3
1

Upload your clip

Drop a talking-head video. Audio extraction and transcription kick off immediately, right on your machine.

2

AI reads the frame

We segment the person pixel-by-pixel and score every word for emphasis based on loudness and text cues.

3

Edit & export

Drag captions right on the preview, pick a theme, and export a polished MP4 — all processed client-side.

✦ Frame-accurate editing

Fine-tune every word, frame by frame

Every caption segment lines up under its own stretch of the waveform — drag its timing, retime it, or nudge it in place directly on the frame.

Timeline — synced to the waveform
Close-up of Bloop Studio's timeline with synced caption segments over an audio waveform
Try it on your own clip

Built for depth, not just decoration

Everything below runs the same at export time as it does in the live preview.

Behind-the-person subtitles

The flagship effect: captions that visually pass behind your subject's body, using a live segmentation mask — not a CSS trick. Nothing else brings this kind of depth to a caption track.

depth.
behind in front

Multi-language captions

Your captions, generated in

English

EnglishHinglishहिंदी

We care for you and your pocket

That's why we only charge what's necessary — pick the plan that matches how much you create.

Get Started Free

$0/month

  • 5 credits
  • Edit reel up to 30 seconds
  • Get experience of Bloop Studio
Get started

Starter

$5/month

  • 200 credits per month
  • Edit up to 20 reels
  • High-quality export

Growth

$10/month

  • 400 credits per month
  • Edit up to 40 reels
  • High-quality export
Most popular

Pro

$15/month

  • 600 credits per month
  • Edit up to 60 reels
  • High-quality export
  • Premium themes
  • Priority support

Studio

$20/month

  • 800 credits per month
  • Edit up to 80 reels
  • High-quality export
  • Premium themes
  • Priority support

Give your next reel some depth

Upload a clip and see behind-the-person captions on your own footage in under a minute.

Upload a video