Upload Your Text File
Supports .txt · .csv · .log — up to 200 MB
Drag & drop your text file here
Supports .txt, .csv, and .log files — processed locally in your browser
Choose Split Method
Select how you'd like to divide the file
Each output file will contain at most this many lines. Great for splitting large CSV or log files.
Each output file will contain at most this many characters. Useful for platforms with character limits.
The file will be split into exactly this many equal-sized parts automatically.
Split & Download
Process your text file and download the results
Upload a file above to enable splitting.
About TextSplit Pro — The Best Free Online Text Splitter
TextSplit Pro is a powerful, free online text splitter tool that lets you split large text files into smaller, manageable parts directly in your web browser. Whether you need to split text by lines, split text by characters, or divide a file into a set number of equal parts, TextSplit Pro handles it instantly — with no file upload, no registration, and no cost.
Our tool is ideal for developers, data analysts, content creators, and anyone dealing with large TXT files, CSV files, or log files that are too large to process all at once. Because everything runs in JavaScript inside your browser, your files are completely private and never sent to any server.
Why Use an Online Text Splitter?
Large text files are common in data processing, log analysis, content migration, and bulk import/export tasks. A free text split tool like TextSplit Pro allows you to:
- Break up a 10,000-line CSV into 10 files of 1,000 lines each for batch processing
- Split a large log file into daily chunks for easier analysis
- Divide long-form text into equal parts for social media scheduling
- Prepare text data for import into databases or APIs with record limits
- Share large documents in smaller email-friendly attachments
How TextSplit Pro Works
TextSplit Pro uses the JavaScript FileReader API to read your file locally,
then splits the content string based on your chosen mode.
The split parts are packaged using JSZip and downloaded directly
to your device — no server involved at any stage.
Frequently Asked Questions
Common questions about our free text splitter tool
What is TextSplit Pro and how does it work?
TextSplit Pro is a free online text splitter that processes files entirely in your browser. Upload a .txt, .csv, or .log file, choose your split method (lines, characters, or parts), and download the output as a ZIP — all without sending data to any server.
How do I split a text file by lines?
Select the "Split by Lines" tab, enter the number of lines you want per output file (e.g. 1000), upload your file, and click "Split Text File". Each output file will contain at most that many lines.
Can I split a CSV file online for free?
Yes. CSV files are plain text and TextSplit Pro supports them natively. Upload your .csv file and split it by lines (rows) to create smaller CSV chunks, perfect for batch database imports.
Is my file data private when I use this tool?
Yes, 100%. All processing happens inside your browser via JavaScript. Your file content is never transmitted to our servers or any third party. Your data stays entirely on your device.
What is the maximum file size supported?
Files up to 200 MB work well on most modern devices. The actual limit depends on your device's available RAM. Very large files (500 MB+) may require a computer with more memory.
How do I split a file into equal parts?
Select the "Split into N Parts" tab, enter the total number of output files you want (e.g. 5), and click "Split Text File". The tool automatically calculates the correct chunk size for equal distribution.
Does TextSplit Pro work on mobile phones?
Yes. TextSplit Pro is fully responsive and works on all modern smartphones and tablets using any mobile browser including Chrome for Android and Safari on iOS.
Can I download all split files at once?
Yes. After splitting, click "Download All as ZIP" to save all output parts in a single ZIP archive. You can also download individual files by clicking the "Save" button next to each one.