Shorts and Reels
Big word-by-word captions for sound-off viewers.
Captions
Captions that are always spelled right.
Most auto-caption tools print whatever speech-to-text heard. Vid Optimus matches every caption word to your own script, so names, numbers and jargon come out exactly as you wrote them, timed word by word to the voice.
- 5animation styles
- 3positions
- 2highlight modes
- RTLUrdu, Arabic, Hebrew
Why script-matched captions matter
Speech-to-text is good at timing and bad at spelling: a brand name, a place or a number often comes out wrong, and fixing captions by hand is the slowest part of editing.
Vid Optimus uses the transcription for timing only. The words come from your script, snapped to when each one is spoken, so captions stay correct even when the transcription mishears.
5 caption animations, built in
PopGhostSlide upKaraokeNone
Styles
Animated captions that keep up with the voice
Highlight the word being spoken by changing its colour or putting a box behind it. Choose how it moves: pop bounces the active word, ghost fades the words not yet spoken, slide up gives the line a short rise on each word, and karaoke sweeps a fill across each word as it is said.
Styles
- Pop, ghost, slide up, karaoke or none
- Highlight by colour or by a box behind the word
- Show a few words at a time, or the whole sentence
Your brand
Font, size, colour and position
Use a bundled caption font or one installed on your computer. Set the size, the text and highlight colours, the outline, and whether captions sit at the top, centre or bottom.
Your brand
- Bundled and system fonts
- Text, highlight and outline colours
- Top, centre or bottom
Every language layout
Right-to-left captions that read correctly
Urdu, Arabic, Hebrew and Persian captions lay out the way they read, word highlighting and all, worked out from your own words. Lines break in spoken order.
Right-to-left scripts
Every language layout
- Direction detected per caption
- Pop, ghost and karaoke work right to left
- Set the direction by hand if you need to
Captions, step by step
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1 Write or record
Paste a script and voice it, or bring your own recording.
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2 Time it
Word timings come from Groq or OpenAI transcription with your key.
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3 Style it
Pick an animation, highlight, font, colours and position.
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4 Export
Captions are burned into the MP4, drawn on top of any colour look.
Try it free for 7 days
Every feature included. No card needed.
Made for creators like you
Faceless channels
Accurate captions without proofreading every line.
Urdu and Arabic channels
Captions that read right to left, correctly.
FAQ
Captions: common questions
Straight answers about how it works and what it costs.
Still have a question?
Send us a message and we'll help you out.
Contact us
How accurate are the captions?
The words come from your script, not from speech-to-text, so they are spelled exactly as you wrote them. The transcription is only used to time each word.
What caption styles are there?
Five animations: pop, ghost, slide up, karaoke or none. The active word can be highlighted by colour or by a box behind it.
Can I use my own font?
Yes. Use a bundled caption font or any font installed on your computer.
Are captions burned into the video?
Yes. They are rendered into the MP4, on top of the colour look, so they stay sharp on every platform.
Do captions work with my own voiceover recording?
Yes. Your recording is transcribed, you correct any misheard word, and the captions follow your corrected text, timed to your voice.
What key do I need for captions?
A Groq key (free tier available) or an OpenAI key, used for word timings. A long transcription keeps every part already done if the key hits a rate limit.
More of what's in every plan
Captions
Try it on your next video.
Free for 7 days with every feature. No card needed. Works on Windows and macOS.