Guides
How captions actually work, and how to get them right. Written to be useful whether or not you use CaptionSuite.
How to burn subtitles into a video (without uploading it)
Burning subtitles in means encoding the text into the picture so it plays everywhere. Here is what it is, when you need it, and how to do it free in your browser.
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SRT vs VTT: which subtitle format do you actually need?
SRT and VTT hold the same thing in almost the same way. Here is the real difference, and which one each platform wants.
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How to fix subtitles that are out of sync
Most subtitle sync problems are a single constant offset, and fixing them takes one number. Here is how to tell which kind you have.
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Caption reading speed: how long a line should stay on screen
The conventions behind readable captions — 42 characters a line, two lines, 17 characters a second — and what to do when a line breaks them.
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Adding captions for Instagram Reels, TikTok and YouTube Shorts
Vertical social video needs burned-in captions, positioned above the platform's own interface. What works, and what the automatic captions cost you.
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Transcribing recordings you are not allowed to upload
Legal, medical, HR and corporate recordings often cannot be sent to a web service. How in-browser transcription changes that, and how to verify it.
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How accurate is AI transcription, and where does it fail?
Whisper gets ordinary speech close to right and specific things reliably wrong. Which errors to expect, why they cluster where they do, and how to find them.
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Transcribing a recording with more than one speaker
This tool does not label speakers, and free tools that say they do are often guessing. What diarisation really is, when you need it, and how to label a transcript by hand quickly.
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Turning a transcript into notes with an AI assistant
Pasted raw, a transcript makes an assistant treat every misheard name as fact. The paragraph to put in front of it, what to ask for, and the privacy question nobody mentions.
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Captions that meet accessibility standards
What WCAG asks of captions, how captions differ from subtitles, and which requirements an auto-generated transcript will not satisfy however good the speech model is.
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Caption generators that do not watermark your video
Most free caption tools stamp their name on the exported video but not on the .srt. Where the watermark appears, how to check first, and what to do if one is burned in.
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Why free caption tools watermark, cap minutes or ask for a card
Server transcription costs money per minute, so a hosted free tier has to meter it. The three levers they pull, verified examples with dates, and the limits this one has instead.
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Captioning a video without creating an account
A free trial is not the same as free. Why caption tools want an email, what no account means for your data, and what you give up by not having one.
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