This page lists every known solution for the clue “Open Source” in Crossword Master. Because this clue can appear in different puzzles (levels) with different required answers, we first list all the answers, then show which one appears in each puzzle below.
Open Source Crossword Master Answers (All Variants)
Os
If more than one answer is listed, open your puzzle page below to confirm the one used there.
All Known Answers for Open Source Clue
Puzzle 170 — - Puzzle 1250 —
- Puzzle 1759 —
Where This Clue Appears
Last Checked: November 14, 2025