Clip Forge

Upload a video, trim it, mix in music, crop it for any platform, add captions (with translation), stamp a watermark — then export or send it straight to YouTube.

✨ Auto Edit: turn several clips into one videoClip Forge measures your clips, picks the best moments, opens on a hook and cuts on the beat. You can change every cut.

Add two or more clips. They stay on this device.

🪞 Talk to yourself: two takes, one frameFilm yourself on one side of the sofa talking, then on the other side answering. Clip Forge joins the two takes so there are two of you.
  1. Put the camera on a tripod or prop it up. Don't move it between takes, and keep the light the same.
  2. Take 1: sit on one side and say your line, then stay still and "listen" for as long as the answer will take.
  3. Take 2: sit on the other side, wait, then answer. Don't cross the middle of the picture.
  4. Making a TikTok, Reel or Short? Film upright, so you both fit in a tall picture.

The one who talks first.

The one who answers.

Your video

No video loaded yet.

Need to make a screen recording first? Use Record Forge, then upload the download here.

Trim

Play the video on the right and pause where you want each point, then click "Use current position".

Speed & audio

Output format

Cropping is centered on the frame.

Watermark / logo (optional)

Layers, keyframes & colour grade (optional)

Stack more video, pictures and text over your clip, each on its own track. Move and trim them on the timeline under the preview, animate them with keyframes, and give the whole video a colour grade.

The top of the list is drawn on top. Pick a track (or the main video) to change its timing, blend, transitions and keyframes.

No grade yet. Adjustments are applied from top to bottom, so their order changes the result.

Translation (optional, for captions below)

✓ Free to use — shares a limited daily capacity. Switch to OpenAI/Anthropic above with your own key if it stops working.

Text overlays & captions (optional)

Timing is measured in the final exported video (after trimming and speed changes).

No text overlays added.

CLIP FORGE — PREVIEW NOT STARTED
No video loaded yet. Upload a video on the left to preview, trim, and edit it.
Rendering…0%

Rendering happens in real time in your browser (a 20-second clip takes about 20 seconds, divided by your chosen speed) — nothing is uploaded. Most desktop browsers (Chrome, Edge, Firefox) support this; Safari's support is limited. Got several clips to stitch together, or slides to combine with one? Try Merge Forge.

Upload straight to YouTube

This is a public identifier for your own Google Cloud project, not a secret — see the setup steps below. Clip Forge only sends it to Google, never anywhere else.

✓ Connected to your Google account.
One-time setup: get a Google OAuth Client ID (click to expand)
  1. Go to the Google Cloud Console, create (or pick) a project, and enable the YouTube Data API v3.
  2. Under APIs & Services → OAuth consent screen, set it up as "External", add the youtube.upload scope, and add your own Google account under "Test users" (this avoids needing Google's full app-verification review, since only you will use it).
  3. Under APIs & Services → Credentials, create an OAuth client ID of type "Web application". Add the exact URL this page is running at (e.g. https://your-username.github.io) under "Authorized JavaScript origins".
  4. Copy the generated Client ID (it ends in .apps.googleusercontent.com) into the field above.
  5. Click "Connect Google account" and approve access — Google will warn that the app is unverified, which is expected for a personal project; click through as the test user you added.

If any step here fails or your browser blocks the upload, you can always fall back to downloading the video file above and uploading it manually at studio.youtube.com.

About Clip Forge

Clip Forge is a video editor in your browser: trim, add music, crop for any platform, add timed text and translated captions, stamp a watermark, or let Auto Edit turn several clips into one video.

How to use Clip Forge

  1. Upload a video and choose the cut, captions, or translation.
  2. Press “Process clip”.
  3. Preview the edit and download the finished clip.

What does Auto Edit do?

Auto Edit turns several clips into one video that opens on a hook, cuts on the beat and adds text, effects and sounds. It can also join two takes so you can talk to yourself.

Is Clip Forge free?

Yes. It is free to use, with no account, no watermark and no paywall. The AI uses a free shared allowance; if it is busy or at its daily limit, try again later or add your own Gemini key.

Are my files uploaded?

Only when you use its AI features: then the text you give the AI is sent to Google’s Gemini model through MigaBuilder’s free AI service, or your own Gemini key. Everything else stays in your browser.

Related tools: Media Convert · Post Forge · Music Forge

View source on GitHub (MIT licensed) →