Free Video Merger nothing stored

Rebuild a recording sent as numbered pieces

Use this merger when one video was divided into raw file pieces for transfer or storage. The listed video types are MP4, MOV, MKV or WebM; what matters is that every part belongs to the same original file. Rejoining puts those pieces back in their original sequence.

A folder of separate recordings is a different task, even if their filenames are numbered. This tool does not read their timelines or make a new sequence of scenes. For that job, use the linked Clip Joiner.

Read the part numbers before joining the bytes

Numbered endings such as .001 and .002, or names containing part01 and part02, let the tool infer the sequence. Numeric sorting puts part10 after part9. If a name has no recognized part number, the set falls back to filename sorting.

Check the displayed list against the sender’s sequence. Move a row earlier or later with its arrow buttons, and remove unrelated files. Adding more parts sorts the combined list again, so review the order after the final addition.

A missing piece cannot be rebuilt from the others

When every filename has a recognized number, the tool warns about gaps and duplicate numbers. Get the missing piece from the sender and remove an accidental duplicate before merging. The warning does not repair data or block an incomplete merge.

No warning is not proof of completeness. The check cannot detect a missing final part, and it skips numbering checks when any name lacks a recognized number. Confirm the expected part count with the source, especially after files have been renamed.

Open an archive containing the recording’s parts

You can add loose parts or a zip containing them. The archive reader lists its entries locally and reads their data when you merge. It supports stored entries and ordinary deflate compression when the browser can expand it.

The splitter’s rejoining note is skipped, but other visible documents may appear in the list. Remove anything that is not a video part. If an archive cannot be opened, extract it with an archive app and add the raw parts. Multi-volume archive sets need their archive software; numbered names alone do not make them video pieces.

Unchanged bytes still need the complete original sequence

With every unchanged part in the correct order, the result contains the original bytes. Picture quality, sound and embedded tracks remain as they were because the merger does not decode or re-encode them. It cannot improve footage or fix damage already present in a part.

Matching file size is a useful check, but the wrong order can produce the same size. Play the saved recording through the joins and check its ending. If exact integrity matters, compare a checksum with the original using a separate utility; this merger does not calculate one.

Reassembly uses your browser’s file handling

The browser joins the selected file data locally and starts a download of the result. No video encoder or graphics card is needed for the byte join. Joining the file parts locally does not eliminate the merger page’s network requests for website services.

There is no fixed byte-size cutoff in the join code, but browser resources and available storage still matter. Compressed archives need additional work to expand their entries. For a large set that fails on a phone, try loose parts on a computer. There is no verified completion time or maximum file size shared by every device.

How do you use the video merger?

1. Gather the complete set

   Choose every numbered part of the same recording, or the zip containing those parts.

2. Review the sequence and name

   Check the numbering, remove unrelated entries and use the arrows to correct the order. Keep the original file extension in the output name.

3. Merge and check playback

   Start the merge. Once the browser saves the rebuilt file, open it in your video player and check the joins and ending.

4. Save your result

   2 free downloads, 8 more after sign-in.

When is the free video merger enough?

Video Merger: questions and answers