Chunkify a String
Split a string into fixed-length chunks. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Chunkify a String
- 1. Paste the string to split. Enter the text you want broken into fixed-length pieces into the input pane, whether it is a long token, a hash, or a run of characters.
- 2. Set chunk length and separator. Choose how many characters go in each chunk, and pick a separator such as a newline or a space to place between chunks in the output.
- 3. Copy the chunked result. Copy the split output and paste it wherever fixed-size groups of characters are needed, like a formatted key or a readable hex dump.
When to use Chunkify a String
Chunkify a String splits a string into fixed-length pieces separated by a character of your choice. It turns one long unbroken run of characters into evenly sized, easier-to-scan groups.
- Formatting a long key or hash for readability. A long API key, hash, or serial number is hard to read as one continuous string; chunking it into groups of four or five characters makes it easier to verify by eye.
- Preparing data for a fixed-width protocol. A legacy protocol or file format expects a payload split into fixed-length records; chunking the raw string first mirrors exactly how the format segments the data.
- Breaking up a credit-card-style number. You are formatting a numeric string to display like a card number, with groups of four digits separated by spaces, without writing a one-off regex for it.
- Splitting a base-encoded blob for transport. A large Base64 or hex string needs to be broken into fixed-width lines to satisfy a system, like some MIME encoders, that expects wrapped output rather than one long line.
Examples
Chunks of 3
Input
abcdefg
Output
abc def g
About the Chunkify a String tool
Chunkify a String is a free online tool that works entirely inside your web browser. Split a string into fixed-length chunks. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 159 String utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
You can shape the output with 2 settings, including Chunk length and Separator between chunks, and the result refreshes the moment you change one. A worked example further down the page shows exactly what the tool produces for a real input.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Chunkify a String cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.