File Tools

File Joiner

Join split binary parts in the correct order without uploading them.

Numbered part files

Output filename

Choose file partsFiles ending in .part001, .part002, etc. are sorted numerically; other names use natural filename order.

File handling notes

connects ZIP creation/extraction, archive inspection, GZIP, TAR/TAR.GZ extraction, ZIP merging, multi-ZIP extraction, splitting/joining, duplicate detection, renaming, folder summaries, file inventories, and file-type inspection without requiring a file upload where the browser APIs support the task.

Archive and safety boundaries

Browser memory can limit very large files. TAR extraction supports ordinary TAR/USTAR regular files and directories rather than every PAX/sparse/link edge case. Password-protected or uncommon ZIP compression methods can exceed JSZip support. Normalized download paths do not grant arbitrary filesystem write access.