Edit Your AI Videos in the Browser — No Upload, No Credits
WorkCrafter's video editor assembles your generated clips into one finished MP4: trim, reorder, add music and export. It runs in your browser, so it costs nothing to use.
Generating clips is the easy part. The moment you have five of them, you need to cut the dead frames, put them in order, lay music underneath and get one file out. That's what the video editor does — and it does it inside your browser.
Why it runs in your browser
Video rendering is slow and heavy. Doing it on a server means queues, timeouts on longer edits, and a cost that has to be passed on to you. Doing it locally removes all three: your clips never leave your machine during the edit, there's no queue, and — the part that matters most — **editing costs no credits at all**. You only spend credits generating the raw material.
The trade-off is honest: the first render downloads the editing engine (about 30 MB, once), and a long sequence takes longer than it would on a big server. For the short clips AI tools produce, it's a good deal.
The workflow, start to finish
- Add clips — pick them straight from your gallery, or drop in files from your computer.
- Trim each one by setting a start and end point. Most AI clips have a second of drift you'll want gone.
- Reorder with the arrows until the sequence tells the story.
- Add background music and set how loud it sits under the original audio.
- Render, preview, and download your MP4.
Trim first, always
The single biggest improvement to any AI-generated sequence is cutting the first and last moments of each clip. Generators tend to warm up and drift out. Watch each clip once, note where it's actually good, and set your in and out points there. A tight two seconds beats a loose five every time.
Music changes everything
A silent cut of AI clips feels like a tech demo. The same cut with a bed of music under it feels like a piece. Generate a track with the music tool, add it in the editor and pull the volume down to around a third so it supports rather than competes.
Background music generated with the music tool
Sound design is the professional touch
Transitions land better with a sound behind them. Describe the sound you want in the studio — “a soft cinematic whoosh followed by a bright confirmation chime” — and drop the result in on the cut.
Sound effect generated from a text description
Add a voice-over
For explainers, write your script, generate the narration with a natural voice, and bring it in as the audio track. Because the voices are multilingual, the same script can carry your video in a dozen markets.
Narration generated with the voice tool
“Generate loosely, then cut tightly. The edit is where AI footage stops looking like AI footage.”— WorkCrafter
A practical first project
- Generate three short clips around one idea, keeping the style words identical in each prompt.
- Generate a 30-second instrumental track that matches the mood.
- Open the editor, add all four, trim each clip to its best two seconds.
- Drop the music volume to about 35% and render.
That's a finished, publishable short — and everything after the generation step was free.
Frequently asked questions
Does editing use my credits?
No. Credits are spent when you generate images, video, audio or music. Trimming, reordering, adding music and exporting all happen locally and cost nothing.
Why is the first render slow to start?
It downloads the editing engine once (about 30 MB) and keeps it for the session. Subsequent renders start immediately.
What formats can I bring in?
Video and image files from your computer, plus anything already in your WorkCrafter gallery. The export is a standard MP4 that plays anywhere.
Can I edit long videos?
It's built for the short pieces AI tools produce — social clips, ads, explainer segments. A very long sequence will render slowly, so cut it into parts.
Try it
Open the video editor, pull in a couple of clips from your gallery and export something. The whole loop — generate, trim, score, publish — now lives in one place.
