Merge Videos — Join Clips Into One

Join several video clips into one, in the order you choose, even if they differ in size or format. Free, no sign-up, and your files never leave your device.

Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.

Join two or more clips into one video, in the order you choose. Clips can be different formats, sizes and frame rates: each is fitted inside the output frame (with black bars where the shape differs), clips without sound get silence, and everything is re-encoded into one MP4 or WebM.

Step by step

  1. Add your clips: Drop two or more videos onto the upload area. You can add more at any time.
  2. Set the order: Drag clips by the handle or use the up and down arrows.
  3. Choose the output size: Same as the first clip, 1920×1080, 1280×720 or 1080×1920 vertical.
  4. Pick a format: MP4 or WebM.
  5. Merge: Click Merge Videos. The joined video downloads as merged.mp4 (or .webm).

Handy for

Phone clips

Combine several short recordings from a trip into one video.

Course videos

Join lesson parts into a single file.

Intro and outro

Add a title clip before and an end card after your main video.

Compilations

Put highlights from different sources together.

Good to know

  • Trim each clip first with Trim Video to remove unwanted parts.

  • Merging re-encodes everything, so very long or 4K projects take a while.

Questions

Is my video uploaded anywhere?

No. The video is read, decoded and re-encoded inside your browser using its built-in WebCodecs encoders. Nothing is sent to a server, so private recordings stay on your device.

Can I merge different formats?

Yes — MP4, MOV, WebM and MKV clips can be mixed. Each is decoded and re-encoded into the output format.

Which file types can I use?

MP4, MOV, M4V, WebM, MKV and MPEG-TS videos. Older formats such as AVI, WMV and FLV can't be read in the browser — you'll see a clear message if you try one.

Which browsers work?

Recent Chrome, Edge and Safari (17 or newer) work best. Firefox can read most files but may lack some encoders, such as H.264 — if a format isn't available, the tool says so before you start. Phones work too, but long or 4K videos can run out of memory.

More Video Tools tools

  • Add Audio to Video — Add music or a voice-over to a video, replacing or mixing with the original sound, without re-encoding the picture.
  • Video to Images — Extract frames from a video as JPG or PNG images — every N seconds, a set number, or every frame.
  • Images to Video — Turn photos into a video slideshow with crossfades, a chosen frame shape and optional background music.
  • Screen Recorder — Record your screen, a window or a browser tab with system sound and microphone — no install, nothing uploaded.
  • Webcam Recorder — Record video from your webcam with your microphone, choose the camera and quality, and take photos.
  • Video Converter — Convert videos between MP4, WebM, MOV and MKV in your browser, choosing codec, quality and resolution.

All Video Tools tools