Split long prompts into numbered chunks so ChatGPT and other AI chatbots can process them safely.
Paste a long prompt above and it will be split into numbered chunks you can send to ChatGPT one by one.
Stick to 15,000 Characters
ChatGPT handles up to ~15,000 characters reliably per message. Going higher risks truncation or lost context.
Send Parts in Order
Always send the Instructions message first, then each numbered part sequentially. Wait for confirmation before sending the next.
Works with Any AI
While designed for ChatGPT, this splitting pattern works with Claude, Gemini, Copilot and other AI chatbots with message length limits.
A Prompt Splitter is a free online tool that breaks long text or instructions into smaller, AI-ready chunks. Most AI tools like ChatGPT, Claude, and Cursor have context window limits; if your prompt is too long, it gets cut off or ignored. This tool, available as part of the free utility suite on MeTen, solves that instantly by splitting your content into numbered parts you can paste one by one.
ChatGPT (especially GPT-3.5) and Claude both have token limits per message. When you're feeding a large document, codebase, or detailed instructions, hitting that limit breaks your workflow. A prompt splitter lets you paste long content in parts while keeping the conversation coherent, so the AI understands context without losing anything mid-way.
Cursor is a code editor powered by AI, and its context window fills up fast when working with large files. With this tool, you can split system prompts, instructions, or code snippets into manageable blocks and feed them to Cursor's AI sequentially, keeping your coding workflow smooth and uninterrupted.
Paste your long prompt or text into the input box, choose your preferred chunk size (by characters or tokens), and hit Split. The tool instantly divides your content into numbered parts, just copy each part and paste it into ChatGPT, Claude, Cursor, or any other AI tool one at a time.
Quick answers to the most common questions about this tool.
ChatGPT-4 supports up to ~128,000 tokens, while GPT-3.5 handles around 16,000 tokens. However, in practice, very long prompts often reduce response quality. Splitting your prompt into focused chunks of 2,000-4,000 tokens tends to produce more accurate and useful outputs from ChatGPT.
Claude (especially Claude 3) supports large context windows, but pasting extremely long prompts in one go can still cause the model to lose focus on specific instructions. Use a prompt splitter to divide your content into logical sections, then prefix each part with "This is Part X of Y:" so Claude maintains context across the full conversation.
Yes. Cursor's AI context fills up quickly when dealing with large codebases or detailed system prompts. A prompt splitter lets you feed instructions or code in chunks, making it ideal for developers working on large projects inside Cursor without hitting context limits.
It depends on the AI tool. For ChatGPT GPT-3.5, stay under 3,000 words per chunk. For GPT-4 or Claude, you can go up to 6,000-8,000 words. For Cursor, keep code-related chunks under 2,000 lines. Smaller chunks also help when you want precise, focused responses rather than broad summaries.
Yes, completely free, no account required, no character limits on paste. Just open the tool, paste your prompt, choose your split size, and copy the chunks. Nothing is stored or sent to any server.
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