Which video formats can I join?
You can select MP4, MOV, MKV, WebM, AVI, FLV, MPEG, TS, OGV, and other video formats that the browser tool can read. Exact compatibility depends on the codecs used inside each file.
Drop videos here or click to select
Choose at least two videos. MP4, MOV, MKV, WebM, AVI, and other common formats are supported.
Drag clips into order or use the move buttons. Each clip has its own Remove button.
The first clip sets the output orientation and aspect ratio. Other clips are fitted with black padding when needed.
If any clip has audio, silent clips receive a silent track so sound stays aligned across the joined video.
All-WebM input downloads as WebM. Any other combination downloads as MP4.
Processing takes place in this browser tab. The selected videos are not uploaded by this tool.
Combine several clips into one continuous video without manually matching their resolution, frame rate, or audio layout. Reorder the selected files before processing to control the final sequence.
The first clip defines the output frame. Landscape, portrait, and square clips can be mixed; clips with a different shape are fitted with padding rather than stretched or cropped.
You can select MP4, MOV, MKV, WebM, AVI, FLV, MPEG, TS, OGV, and other video formats that the browser tool can read. Exact compatibility depends on the codecs used inside each file.
The first clip sets the output orientation and aspect ratio, with the longest edge limited to 1280 pixels. Other clips are fitted inside that frame and receive black padding when their shape differs.
If at least one clip has audio, the result includes a single normalized soundtrack. Silent clips receive silence for their own duration so later audio remains synchronized. If every clip is silent, the result has no audio track.
The clips are normalized before joining so different resolutions, frame rates, and codecs can share one output. This can take time and may change file size or visual quality. All-WebM input produces WebM; other combinations produce MP4.
No. The selected videos are processed in this browser tab by this tool and are not uploaded to a server. You can select up to 20 videos, with a 512 MB limit per file and a 1 GB combined limit; available memory and device performance may set a lower practical limit.
Related tools: Video Converter · Video Trimmer · Add Audio to Video