Automatic subtitles, timed word by word
Captiono's auto subtitle generator listens to your video or audio and produces a full transcript with a precise start and end time for every single word — not just a rough guess per sentence. That's the difference between subtitles that drift out of sync and captions that feel locked to the audio.
Timed to the word, not the sentence
Most auto-caption tools time whole sentences and leave the syncing to you. Captiono times every individual word, so word-pop and karaoke-style reveals land exactly on the beat without any manual adjustment.
Ready in well under a minute
Drop in your video or audio and transcription starts immediately — only the extracted audio is sent off for processing, so there's no large upload to wait behind and most short clips come back with full word-level timing in seconds.
Still fully editable
Automatic doesn't mean locked in. If a word gets misheard, click it and retype it — the timing around it adjusts automatically, so you never have to re-time a segment by hand.
Your footage stays on your device
Styling, positioning, and the final export all happen locally in your browser. Only the extracted audio track is sent securely to generate the transcript — your actual video file is never uploaded anywhere.
Why word-level timing matters
Word-level timing is what makes the punchy, word-by-word caption styles popular on short-form video actually work. When a tool only knows the start and end of a whole sentence, it has to guess where each word falls in between — and that guess is often visibly wrong, especially with fast or uneven speech. Captiono's auto subtitle generator times every word individually against the audio, so the highlight or pop animation always lands on the correct syllable.
Once your subtitles are generated, you can apply that same word-level timing to any of the caption styles in the video caption maker, export standard subtitle files from the subtitle generator page, or read the full step-by-step workflow.
Frequently asked questions
How is this different from auto-captions built into TikTok or YouTube?+
Platform auto-captions usually time whole phrases and lock you into their own styling. Captiono times every individual word, lets you fix any misheard word directly in the timeline, and gives you full control over the look before you export — so the captions are yours, not the platform's.
Do I still need to check the captions afterward?+
We'd recommend a quick pass, especially for names, jargon, or heavy accents — but because timing is per-word, fixing a single word never throws off the sync of the ones around it.
Can I turn off auto-timing and set it manually?+
Yes. Every word's start and end time is editable directly in the timeline if you want to fine-tune anything by hand.
Does word-level timing work in every language?+
Word-level timestamps are generated for all 16+ supported languages, though accuracy varies with audio quality and how clearly the speech is enunciated, same as any transcription tool.
Your captions are one upload away
No sign-up. No watermark. Your video stays on your device. Just better captions, in minutes.
Create Captions