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File Splitter

Cut any large file into pieces — of a fixed size, or into a number of equal parts — then download them together and rejoin them later.

10 / 10 free files today

Open File Splitter and you get an answer straight away, with no account to create. Its place is under Archives & splitting; Create a TAR file and Create a ZIP file answer the questions closest to this one.

How to use it

  1. Open the tool — no signup or install needed.
  2. Enter your input or adjust the available options.
  3. Get your result instantly, then copy or download it.

Frequently asked questions

What is File Splitter?

Cut any large file into pieces — of a fixed size, or into a number of equal parts — then download them together and rejoin them later.

When would I actually use this?

Bundling several files into one to send, opening an archive without installing anything, and cutting a file that exceeds an attachment or upload limit into pieces that can be put back together.

What is the most common mistake?

Treating the parts of a split file as files. A piece is a slice of bytes, not a smaller version of the original: it opens as nothing, and the whole is recoverable only if every part is present, unrenamed and in order. Losing one part loses the file.

How is File Splitter different from Create a TAR file?

They sit next to each other but answer different questions: Create a TAR file is the one to open when you need it to bundle several files into an uncompressed .tar, the archive Unix tooling expects. Pick whichever matches what you're starting from — both are free.

Is there a tool for the next step?

Create a ZIP file is the closest one after this: Bundle several files into one ZIP, choosing how hard to compress them.

What else is worth having open alongside it?

Extract a ZIP file and File Merger — they come up in the same task often enough to be worth a second tab.

Where do the figures come from?

ZIP and TAR are open container formats with published layouts, and both are read and written here in the browser. A container records names, sizes and order; it does not record who made it or whether the contents are what they claim, so an archive is a wrapper, never a guarantee.

Further reading

All guides
How-toSplitting a File That Is Too Big to SendThe last resort when nothing can be compressed further. It works, and it has three sharp edges: the parts are useless on their own, the order is absolute, and the megabyte you set is not the megabyte the limit means.ExplainerWhy Compressing a File Twice Does Not Halve It TwiceThe first pass takes 30% off and the second takes nothing. That is not a broken tool — it is the difference between removing redundancy and removing information, and knowing which one you are doing tells you when to stop and what a second attempt actually costs.ComparisonZIP or TAR: Which One, and Why It MattersOne structural difference explains everything else: TAR does not compress, it only stacks; ZIP compresses each file on its own. Measured on 60 small source files, that is the difference between 1,809 bytes and 14,686.GuidePull the Plug: Which Online File Tools Actually Upload Your DocumentEvery online file tool promises your document is safe. Almost none tell you whether it leaves your machine at all. There is a five-second test that settles it without reading a single privacy policy, and it works on any tool — including this one.ExplainerConverting Formulas to Values Keeps the Cached Answer, Not the CalculationA spreadsheet file stores both the formula and the last answer Excel computed. Stripping the formula leaves the stored answer — and leaves a blank wherever the file never carried one.ExplainerThe Number 1 and the Text "1" Are Not DuplicatesDeduplication compares whole rows exactly, cell type included. Five identical-looking rows came out as three, because one held a number, one a string and one a string with a leading space.
File Splitter — OneKitly