Google’s 10,000 English Words:
https://github.com/first20hours/google-10000-english

GitHub:
Search for “child-friendly word list” or “clean word list” for community-curated options.

Automated Filtering (for Offline use)

You can write a simple script to remove words that match patterns or are on a “blocklist.” Here’s a basic approach:

• Blocklist: Maintain a list of offensive words and remove them.

• Pattern Matching: Remove words with certain patterns (e.g., slurs, vulgarities).

• Length/Complexity: For very young children, you might also filter by word length or reading level.