Video Editor

Arrange video, music and titles on a layered timeline. Trim, split, frame and mix, then save a project or reuse the arrangement in a workflow.

Your files stay on your device

Open media or project

About project files

Projects include your original files and their metadata with editable tracks. Recipes include settings and generic source slots only. Nothing is saved automatically.

Start from scratch

Record a voiceover

Record on this device, then add video.

Play the project while recording

Empty timeline

Set up your tracks, then bring in your media.

Frame sizeStart with a shape that fits your story

Save a project to continue later. Your files are never uploaded for processing.

How it works

How to edit video on the timeline

Open your media
Add videos, audio or still images, or reopen a project with embedded originals.
Arrange and frame
Select clips to trim, split, slip, change speed or crop. Add tracks, timed text and image overlays.
Mix the sound
Set clip and track volume, mute, solo and fades. Add your own music or record a voiceover.
Export or keep editing
Export MP4/WebM, or use File → Save project to keep originals and tracks. Save a recipe to repeat settings in a workflow.

Inside the editor

A workspace for your next video

Keep video, sound and titles together while every original stays editable.

Video timeline

Arrange your story

Trim, split, slip and move your clips. Add visual tracks and choose straight cuts, dips or dissolves.

Filmstrips
Tracks
Transitions

Sound & voice

Mix music and voiceovers

Use original video sound or independent audio tracks. Set volume and fades, or record a local voiceover.

Waveforms
Voice recording
Beat markers

Titles & pictures

Add layers that stay editable

Place timed text, logos and still images over your video. Change size, crop, position and colour.

Timed text
Image overlays
Framing

Reversible editing

Try an edit, then change your mind

Keep the originals while working. Undo, copy, duplicate and lock clips from a contextual toolbar.

Undo/redo
Clip menu
Multi-select

Projects & recipes

Keep working or repeat the arrangement

Save projects with original files. Reuse media-free recipes in Step-by-step or Advanced workflows.

Portable projects
Recipes
Workflows

On your device

Your media stays local

Preview and export in this browser. No file-processing uploads, account or subscription.

Local processing
MP4 / WebM
No watermark

Try a title and keep an editable project

Download the 12-second practice MP4 and add it to an empty editor. Move the playhead to the start, choose Text and replace the title with Demo Example. Adjust its duration so it appears over the beginning of the clip.

Play through the title’s end before exporting MP4. The exported video should show the title during its chosen interval; it no longer has an editable text layer. Use File → Save project and reopen that project to change the title or its timing later. The project includes the full original media.

Frequently asked questions

Useful details

8 answers

Can I layer videos, titles and music?

Yes. Visual tracks stack in order and audio tracks can overlap. A dissolve uses an explicit overlap on one video track; otherwise clips on the same track stay separate.

Can I start from a quick tool?

Trim, Merge, Crop, Resize, Rotate, Mute, Speed, Music and Volume offer Batch and Interactive Editor modes. Edit in editor carries originals and current settings. Each mode retains its own session until reload.

What is included in a project?

A .toolkitta-video project includes original files, their metadata and editable arrangement settings. Exported videos rebuild frames and omit original metadata. Nothing is saved automatically.

Can I use this in a workflow?

Yes, in Step-by-step and Advanced workflows. Sequence joins the current inputs; Custom repeats a validated recipe with typed positional source slots. Saved workflows omit files and ask for supplemental media again.

How does recording work?

Record voiceover asks for microphone permission only when pressed. By default the project plays along; use headphones. Stop keeps a local take aligned using reported input/output latency; Cancel discards it.

Does it generate captions or media?

No. Add timed text manually and import your own videos, pictures and sound. Beat markers are optional timing aids; automatic captions, scene synchronization and generated media are not included.

Which formats can I export?

MP4 or WebM, subject to browser codec support. Use Video to GIF or Frame Extractor for GIFs/stills. Larger results use local browser storage when supported; memory-only output is capped at 128 MiB.

Are animated images preserved?

Still-image imports use their first frame. Use a video source for movement.

More help

Guides, common conversions and useful next steps.