Prompt Builder

Modern LLMs like Claude (1M tokens) can digest entire codebases in a single prompt. The challenge is assembling that prompt — selecting the right files, formatting them, tracking token count.

RepoPrompt does this, but it costs money and caps you at ~35k tokens. Prompt Builder is free, open-source, and has no limits.

Open a folder. Check files from the tree — folders select recursively. Exclude patterns like *.css, *.test.ts. Write instructions. Hit Copy. Done.