Driven by the assistant
It cuts, titles, captions and changes speed, then reports the result.
AI video editorNow available
A video editor your AI can drive.
An AI video editor should make the edit, not only suggest one. The KolHive video editor is one of the apps on the desktop, and the assistant can work its timeline: cut, add titles and captions and change speed, then read back what changed. Underneath is a full editor, with a multi track timeline, caption tracks in the formats broadcasters ask for, motion titles, chapters and sound tools.
Free for macOS, Windows, Linux and the web. Start demo
Caption tracks
Several tracks per project, in SRT, WebVTT, SCC, TTML, DFXP, EBU-TT-D and EBU STL.
Motion titles
Thirty built-in presets for titles, lower thirds, call-outs and end cards.
Captions that leave the editor in the right format
A subtitle file is only useful if the place that receives it can read it. Each caption track keeps its own language and style and exports on its own.
Several tracks
Keep a transcript in one language and translations in others on separate tracks of the same project.
Seven file formats
Import and export SRT, WebVTT, SCC, TTML, DFXP, EBU-TT-D and EBU STL, for web players, social platforms and broadcast hand-offs.
Right-to-left scripts
EBU STL files can be written for Latin, Cyrillic, Arabic or Hebrew text, and the editor itself mirrors for Hebrew and Arabic.
Burned in or alongside
Burn one track into the picture, or export the caption files next to the video.
Titles, timing and sound
The finishing work that usually sends a project to three other tools stays on one timeline.
Motion graphics
Titles, lower thirds, call-outs, social buttons, end cards and counters from thirty presets, in the colours you choose.
Speed, reverse, freeze
Ramp the speed of a clip, play it backwards, hold a frame, and choose frame blending.
Markers and chapters
Mark moments with notes and ranges, then write them as chapters in MP4, MOV and M4A files or as a YouTube chapter list.
Sound tools
Fit a piece of music to the length of the edit, and level clips to a loudness target.
Workspaces
Switch between Edit, Color, Audio, Captions and Effects layouts. Each one remembers its own panels on that device.
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.
- SRT and VTT subtitle files from your videos in KolWrite, at kolwrite.com.
- The desktop and its apps in the web demo at demo.kolhive.com, with sample data and the AI switched off.
Coming
- KolHive for iPhone and iPad: in App Store review.
- KolHive for Android: coming to Google Play.
From a recording to a finished video with captions
Bring the footage in
Add the video and its audio to a project, or open a recording from KolWrite.
Ask for the cut
"Remove the long pauses", "speed up the intro": the assistant edits the timeline and tells you what it did.
Add titles and captions
Place motion titles, then add a caption track for each language you need.
Export for where it goes
Export the video, with captions burned in or as separate files in the formats the destination accepts.
Questions and answers
Can the AI edit the video for me?
Yes. The assistant can cut, add titles and captions and change speed, and it reads back the result so you can see what changed.
Which caption formats does the editor read and write?
SRT, WebVTT, SCC, TTML, DFXP, EBU-TT-D and EBU STL, each as its own caption track.
I am a developer. Can my own AI agent edit video from a transcript?
Yes. The KolWrite API returns transcripts with word timings and SRT files that an agent can use to cut video. The documentation is at console.kolwrite.com.
Can I use the editor today?
Yes. Download KolHive for macOS, Windows or Linux, or open web.kolhive.com, with a free account. For subtitles from a video file, KolWrite also makes SRT and VTT files.
Keep exploring KolHive
- AI that uses your appsAn assistant that opens files, edits documents and drives the video timeline.
- 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
- Photo editorOne-tap fix, retouch, AI edits and RAW files.
Get KolHive.
Download it for your computer or open it in the browser. One free account for KolHive, KolChat and KolWrite.