Divide a Large File into ZIP Parts
Break a large file into numbered ZIP parts that are easier to send. Free to use, no account needed. Files never leave your device.
Drop a large file to split here
or
Max 500 MB per file, the browser memory is the wall · Secure and private, files are never stored
How it works
- 1Pick your file to split.
- 2Pick a part size that fits your limit.
- 3Click "Split into parts".
- 4Download the multiple pieces.
When to use this tool
Break a large file into numbered ZIP parts that are easier to send.
Choose your file and a part size below the sending service limit. Download and send every part, keeping the names unchanged.
What to check before you start
The recipient needs every part to rebuild the file. Splitting is not a way to remove a service total storage limit.
Keep your original files until you have opened the downloaded result and checked it. The tool works on a copy, so you can start again if you need different settings.
Example: send a large file in smaller pieces
Read the current per-file limit of the service you plan to use and choose a smaller part size. Download every output piece, then send the complete set with a short explanation that the pieces belong together. Tell the recipient to keep the names unchanged. They should join the parts and check the restored file before either of you discards the original or the pieces.
When splitting does not solve a sending problem
A service can limit the total attachment size as well as the size of each file. Several small parts may still exceed that overall limit. Splitting also does not reduce the original picture or video quality to save space. Check which restriction you are trying to meet before creating many pieces that the recipient will need to download and store.
Keep the part names and the instructions together
Numbered pieces are not independent copies of the original file. They carry different portions of the same packaged data, so the recipient needs the full set. Keep the names and number endings unchanged during sending and downloading. Include a short note identifying which pieces belong together and where the recipient should join them. If you later create a new set with a different part size, store it separately from the first set. Mixing parts from those versions can cause a failure even when each download finished successfully. Check that the recipient has enough space for both the pieces and the restored output before starting a large transfer.
Need a different result?
Send the recipient to Join ZIP Parts to rebuild the file. Only need one archive containing several files? Use Zip Files.
Frequently asked questions
What part size should I choose?
Choose a size below the limit of the service you are using. Check its current limit and leave room for any attachment overhead.
Does the recipient need all of the parts?
Yes. Send every numbered part and keep the names unchanged. A missing piece can prevent the original file from being restored.
Is splitting the same as reducing picture or video quality?
No. Splitting divides the packaged file into pieces. It is not a way to lower media quality or guarantee less total storage.
How can the recipient rebuild my file?
Send them to Join ZIP Parts with the complete set of parts. They should save the restored result before closing the page.
Can I mix parts from two splitting attempts?
No. A new attempt may produce a different layout, especially if you changed the part size or source file. Keep each complete output set separate, even when the names look similar. Send the recipient one consistent set and its instructions. If you are unsure which version a piece belongs to, recreate a clean set from the original file.