From the transcript
One tap lays the video's transcript on the caption lane.
Subtitles and captionsNow available
Edit subtitles on the timeline, where the cuts are.
In the KolHive video editor, captions have their own lane under the picture. They can come from the video's own transcript, from a subtitle file, or from the assistant. You correct a caption's words, drag its in and out points, and use the frame buttons for the last few frames. Captions made from the transcript stay linked to the clips, so when you trim or move a clip, its captions move with it.
Free for macOS, Windows, Linux and the web. Start demo
Frame-accurate
Drag the in and out points, then adjust by single frames.
Several tracks
Languages and roles: subtitles, SDH captions and forced subtitles.
Seven formats
SRT, WebVTT, SCC, TTML, DFXP, EBU-TT-D and EBU STL.
Fixing captions by hand
A teacher whose subtitles show up half a second before she speaks needs to move the timing, not retype the text.
Caption editor
Tap a caption to change its text and timing. Drag the two handles to set in and out, and use the buttons for frame-accurate changes.
Split at the playhead
Cut a long caption in two where the sentence turns.
Copy or move to a track
Send a caption to another track, for example from the subtitles to the SDH captions.
Captions follow the edit
Captions made from the transcript stay linked to the clips, so trimming, moving and splitting keep them in step.
Letting the assistant do the tedious part
The assistant uses the same caption tools you do, and every change can be undone.
Transcribe the timeline
Ask for captions and the assistant transcribes the edit and lays the captions on their lane.
Wording and timing
Ask it to correct a name in every caption or move one caption, and it makes the change in one undo step.
The look
Rows, words per line, word highlight, size, colours, box, outline and position.
Import and export
Bring in an SRT, WebVTT or TTML file, or export the captions in the format the destination asks for.
Languages and delivery
One project can carry several caption tracks, each with its own language, role and look.
A track per language
Add a translation of the video's transcript as its own track. It lines up with the same cuts.
Several languages in one file
SRT and WebVTT files can carry every language of a caption, one line each.
Speaker names in WebVTT
WebVTT files carry the speaker as a voice tag, which players show and screen readers announce.
Burned in or as files
Burn one track into the picture, or export caption files to go next to the video. SCC holds Latin letters only, and the export tells you what would be left out.
What you can use today, and what is coming
Available now
- KolHive for macOS, Windows, and Linux, free, and in the browser at web.kolhive.com.
- Caption tracks, the caption editor and caption export in the KolHive video editor.
- SRT and VTT subtitle files from any video in KolWrite, at kolwrite.com.
Coming
- KolHive for iPhone and iPad: coming to the App Store.
- KolHive for Android: coming to Google Play.
From a cut to delivered subtitles
Open the video
Open it from Files and its transcript comes along as captions, or choose From transcript or From file.
Fix what is wrong
Correct the words and drag the timing, or ask the assistant.
Add languages
Add a track for each language and role you need.
Export
Burn the captions into the video, or export the files the platform accepts.
Questions and answers
Can I change subtitle timing without retyping the text?
Yes. Drag a caption's in and out points on the timeline or in the caption editor, and use the frame buttons for small moves. The text stays as it is.
What happens to the subtitles when I cut the video?
Captions made from the transcript stay linked to the clips, so trims, moves and splits keep them in step.
Which subtitle formats can I import and export?
SRT, WebVTT, SCC, TTML, DFXP, EBU-TT-D and EBU STL. SCC holds Latin letters only.
Can the AI fix the subtitles?
Yes. It can correct the wording or timing of one caption or many, change their look, and import or export them. Each change can be undone.
Where do I fix speaker names before captioning?
In the transcript editor. The names you set there are the ones the captions and WebVTT voice tags use.
Keep exploring KolHive
- AI video editorA timeline the assistant can cut, title and caption.
- Transcript editorFix words, speakers and timing, with the audio under every word.
- Meeting notesTranscripts with speaker names, then decisions and action items.
- Make SRT subtitles in KolWrite
- For developers: the KolWrite API, with word timings and SRT
Get KolHive.
Download it for your computer or open it in the browser. One free account for KolHive, KolChat and KolWrite.