No API fees · Runs on your device · Character chunking
Text chunker for prompts
Split text into bounded character chunks without dropping content.
Choose a local model, trainable classifier or statistical helper. Inputs stay on your device; model files download only when you run a model tool.
Text & settings
Analysis result
Enter your text or try a sample.
Method & limitations
Choose 500–4,000 UTF-16 characters per chunk. The tool prefers a space or line break in the latter half of the chunk, otherwise splits at the limit without breaking surrogate pairs. The JSON chunks array reconstructs the original input exactly. These are character counts, not model token budgets.
Runs in a Web Worker. Inputs and results are cleared when you leave or choose Clear text; they are not saved in browser storage. Downloaded files remain on your device.
A guide to this tool
How to use Text chunker for prompts
- Enter your text or load this tool’s sample.
- Choose the available settings and fill in a second input if this tool has one.
- Run the analysis and review the output and method notes before using it.
A sample you can try
Sample input
An online store needs clear product information to earn customer trust. Good product photos help customers inspect the details. Compressing product photos makes store pages load faster. Website speed improves the shopping experience for customers. Product descriptions should explain materials, dimensions and how to use the item. A clear product description helps customers compare products. Customers check delivery and return policies before buying. Customer reviews can also support a purchase decision.
Sample output
Part 1 (507) An online store needs clear product information to earn customer trust. Good product photos help customers inspect the details. Compressing product photos makes store pages load faster. Website speed improves the shopping experience for customers. Product descriptions should explain materials, dimensions and how to use the item. A clear product description helps customers compare products. Customers check delivery and return policies before buying. Customer reviews can also support a purchase decision.