LLM Context Window Planner
Plan context window usage across fixed prompt tokens, chat history, retrieved docs, and reserved output.
About This Tool
Break a context window into prompt, history, retrieved document, and output budgets.
This is useful for RAG workflows, agents, long chat sessions, and model migration planning.
Remaining context
31,704
Fit status
Fits
Needed chunks
30
Used %
75.2%
How to Use
- 1
Enter the values you need or paste your text into the input area.
- 2
Adjust any options, units, or settings for your exact use case.
- 3
Review the result and copy it into your document, workflow, or next task.
Features
Instant Results
Outputs update directly in the browser as you enter values.
Browser-Based Processing
Your inputs are handled locally and are not uploaded for calculation.
Simple Inputs
Clear fields and readable outputs keep repeat tasks fast.
Free to Use
Use the tool immediately with no sign-up or installation.
Common use cases
- ›Check whether retrieved documents fit with chat history.
- ›Reserve enough output tokens before sending a request.
- ›Estimate how many chunks a document retrieval plan needs.
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