Generate captions from speech, make them readable on the real footage, and export a video ready for feeds, lessons, podcasts, or presentations. No watermark, on any plan.
Drop a video here
MP4, MOV, WebM or MKV · up to 500 MB · 10 minutes
No signup. No watermark. Guest projects stay editable for 24 hours, or 7 days once you sign in.
MP4, MOV, WebM, or MKV, straight from the browser to storage. The file is not re-encoded on the way in, so nothing is lost before you have seen it captioned.
Speech becomes editable, timed text with a start and end for every word, not just every line. Word-level timing is what makes active-word and karaoke styles possible later.
Apply a preset, then adjust type, colour, emphasis, size, and placement against your own footage. Drag the caption block where it belongs for this particular shot.
Download the captioned MP4 when the captions must be burned in, or SRT, VTT, or TXT when the platform draws them itself.
Start from restrained, high-contrast, karaoke, and active-word treatments instead of plain defaults. Every preset is a real style with its own timing behaviour. All of them can be previewed on your clip; Podcast Lower Third and Documentary export on Free, and the rest need Starter.
Correct a misheard word and judge its placement without leaving the video workspace. Editing text never resets the timing you already have.
Each word carries its own start and end, so a caption can emphasise the word being spoken rather than flashing a whole line at once.
Move and resize the caption block directly on the frame. Keyboard adjustment is available too, so placement is not a pointer-only feature.
SRT, VTT, and TXT downloads are free on every plan, including the free one. Useful when the destination handles caption display itself.
The same workflow supports course clips, podcast excerpts, explainers, and accessible presentations, not only vertical feed video.
Auto-captions inside a social app are free and immediate, and for plenty of clips they are enough. These are the cases where they are not.
Captions generated inside an app usually live in that app. The same clip posted elsewhere arrives bare, and you caption it again. A burned-in MP4 travels with the captions already in the picture.
Most in-app captioning offers no correction step, or buries it. Names, jargon, and brand words are exactly what a speech model gets wrong, and exactly what your audience notices.
Platform captions look like the platform. Type, colour, emphasis, and placement are set here, so the clip carries your look rather than the app's default.
A burned-in MP4 keeps the reviewed type, colour and placement wherever the file is posted. Nothing here adds a watermark on any plan, including Free.
Three cases where something else will serve you better. Worth knowing before you upload.
Chinese, Japanese, Korean, and Thai characters are blocked for burned-in export because the current font set cannot draw them reliably. Do not choose this workflow for those scripts until font and rendering QA is complete.
This generates timed captions drawn on the video. It does not write the description that sits beside the post.
The ceiling is 120 minutes and 5 GB on any plan, and Free stops at 10 minutes. Longer than that wants a desktop editing suite, not a browser tool.
No. This page generates timed on-video captions from spoken audio rather than writing post descriptions or hashtags.
Yes. Use presets and adjust typography, colour, emphasis, position, and other style settings while the footage plays behind them.
Yes. Every word carries its own start and end time, so styles can emphasise speech as it happens rather than a line at a time.
Open the script panel and correct it, or double-click the word on the video. The surrounding timing is preserved, so a correction does not desynchronise the rest of the caption.
No. Upload, transcribe, style, and preview all work without signing in. An account is required only at download, once you have already seen the result.
No. Nothing adds a watermark on any plan. Free is limited by volume: 3 distinct video projects a month, where revising and downloading the same project again uses the same slot. Every style can be previewed; Podcast Lower Third and Documentary export on Free.
Yes. SRT, VTT, and TXT downloads keep the caption text separate, and those are free on every plan.
Seven days on the free plan and ninety on Starter, after which the source file and its project are deleted. Guest uploads are removed after one day.