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developer

Context Window Planner

Know when your AI will forget what you told it

Paste your file list and sizes — see how many tokens your codebase uses and get a warning before you hit the context limit. Pure math, no API.

Estimate whether your files will fit inside a model’s context window.

Paste explorer output

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Recommended tools

Partners we routinely pair with this workflow · every outbound click routes through anonymized redirects.