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Join multiple video files together in your chosen order and export as MP4.
Merge Videos joins multiple video files together in your chosen order and exports the result as a single MP4 file. Whether you need to combine meeting recordings, concatenate tutorial segments, or assemble raw footage into a rough cut, this tool handles the joining process entirely in your browser with no server uploads. Video editing often begins with the simplest operation: putting clips in sequence. Before applying transitions, titles, or effects, the raw material needs to be arranged into a continuous timeline. Merge Videos handles this foundational step, accepting files of different formats and resolutions and normalizing them into a single cohesive output. The merging is performed by FFmpeg compiled to WebAssembly, running locally in your browser. The files are decoded, their streams are concatenated, and the combined result is re-encoded into a single MP4 file. Because everything runs locally, there are no file size limits beyond what your device's memory can handle.
Upload multiple video files and arrange them in order using drag-and-drop reordering. The tool displays each file with its duration, resolution, and format. You can remove files from the list, reorder them, or add more at any point before processing. When you click Merge, the tool concatenates the video and audio streams from each file in sequence. If the files have different resolutions or frame rates, the tool normalizes them to match the first file's settings. The output is a single MP4 file with H.264 video and AAC audio, ensuring broad compatibility. A progress bar shows the merging status, and you can preview the beginning of the merged result before downloading.
Videos arrive in pieces. A recorded meeting has three segments because the recording was paused between agenda items. A tutorial is filmed in separate takes for each step. A vacation video is split across multiple clips from different days. Before editing or sharing, these pieces need to be one continuous file. Merging them avoids the awkward playback breaks and keeps the content flowing naturally.
combining multiple takes and clips into a single video before uploading to YouTube or social media
merging separate segments of recorded meetings and presentations into one continuous video
concatenating lecture recordings that were paused between topics
assembling raw footage clips in sequence for client review before detailed editing
A project manager records a two-hour stakeholder meeting in three segments because the recording app was paused between agenda items. Merging the three MP4 files creates one continuous video that stakeholders can watch without interruption.
A software instructor films a 10-step tutorial as separate clips for each step. Using Merge Videos, they combine all clips in order, producing a single tutorial video that flows from introduction to conclusion without cuts.
The Zilita Team builds privacy-first browser tools that help teachers, students, developers, businesses, and creators work more efficiently without sacrificing data privacy.