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Guide

Free online video editing, right in your browser

Arrange video, images and audio on a multitrack timeline with AGONECO Video Editor. Trim clips, change playback speed and add motion effects. Editing happens on your device without uploading your media to a server.

Open video editor All tools

How to edit your first video

  1. Import video, images and audio

    Choose Add assets in the editor to select files from your device. Place imported assets on the timeline and use separate tracks to combine visuals and sound.

  2. Trim and split clips

    Adjust the start and end of a clip to keep the section you need. Split a clip into separate sections to arrange scenes and apply effects independently.

  3. Adjust speed and motion

    Change playback speed and add entrance, exit, movement, rotation or zoom effects. Adjust the timing of each effect and preview the result to check motion and audio.

  4. Save your editable project

    Save creates an .agnv project so you can continue editing later. Use Save as to choose another file or Save a copy to keep a separate version. Use Export when you need a finished video.

  5. Export your finished video

    Choose MP4 for a regular video, or ProRes 4444 MOV when you need transparency for compositing. Use PNG for image output.

Choose the right output format

MP4

Use MP4 for a finished video you want to play or share. MP4 export requires WebCodecs support in your browser.

Transparent MOV

ProRes 4444 MOV supports an alpha channel for compositing over other footage. Your composition must have a transparent background.

PNG

Use PNG to export image output.

.agnv

This project format preserves your arrangement and effects for further editing. It serves a different purpose from a playable video file.

Start an edit with an AI agent

Ask an AI agent such as Claude Code or Codex for something like “an ending from A.png that shakes and then disappears”. The agent writes a project as JSON and hands you an editor link. Open it, connect the files it asks for, and the project appears on the timeline. Your media still never leave the browser.

Guide for agents (agents.md)

Frequently asked questions

Is it free?

Yes. AGONECO Video Editor is a free browser-based editing tool.

Are my files uploaded?

Imported media is processed on your device. Automatic backups are stored in this browser. Conversion tools and fonts are downloaded from a CDN when first needed.

Can I edit long videos?

There is no fixed video duration limit. The files and output sizes you can handle depend on available memory, storage, browser support and codecs. Save an .agnv project file during longer editing sessions.

Which browser should I use?

We recommend a current version of Chrome or Edge. WebGL2 is required. MP4 export, codec support and file-saving capabilities vary by browser.

Is automatic backup enough?

Automatic backups use local storage in your current browser. Save an .agnv file before clearing browser data or moving to another device.

Where can I suggest a feature or report a problem?

Share your feedback on the AGONECO suggestion board. For a bug report, include your browser, steps to reproduce the issue and any error message.