Will it cut words in half?

Not when the "Don't break words" option is on — chunks end at the nearest space before the limit.

Can I split on commas?

Yes, pick the custom separator mode and type any separator, including \n and \t escapes.

Is there a size limit?

No fixed limit; everything is processed locally, so very large documents depend on your device memory.

Is my data uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your input never leaves your device and nothing is logged or stored on our servers.

Does it work offline and on mobile?

Yes. Once the page has loaded it keeps working without a network connection, and the layout is responsive so it stays usable on phones and tablets.

Text Splitter

Split long text into chunks by characters, words, lines or a separator.

Support

Works Offline

Privacy First

No Login

No API

Split by

Chunk size

Don't break words

Number the parts

Input text

Chunks (2)

Part 1 · 120 chars

Paste a long article, transcript or prompt here. The splitter breaks it into evenly sized chunks you can feed to an LLM,

Part 2 · 49 chars

an SMS gateway or a CMS field one part at a time.

Chunks

Longest chunk

120

Total characters

170

About the Text Splitter

Break long articles, transcripts or prompts into evenly sized parts you can paste one at a time into an LLM, an SMS field or a CMS. Split by character budget without cutting words in half, by word count, by line count, or on any custom separator, then copy each part individually or all at once with numbered headers.

Examples

160-char SMS parts

long message…

Output

Part 1/3, Part 2/3, Part 3/3

Keyboard shortcuts

Copy the main outputCtrl / ⌘ + Shift + C
Download the resultCtrl / ⌘ + S
Share this toolCtrl / ⌘ + Shift + S
Reset the inputsAlt + R
Open the tool search paletteCtrl / ⌘ + K

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Frequently asked questions

Version 1.0.0 · Updated 2026-08-25 · Runs entirely in your browser