Morse code worksheets
Print a one-page letter chart and six decoding exercises. Download the separate answer key.
Morse code resources
Practice a message, build a clue, or check an image reader against the same files.
Morse code puzzle kit
Six ready-to-use PNG clues and 15 wpm WAV files, with a machine-readable answer key and a checking workflow.
Image decoder test set
Nine inputs, source credits, exact outputs and recovery steps. See where automatic reading works and where it fails.
Reuse and check
The worksheets and puzzle clues are original materials released under CC0 1.0. You may copy and adapt them for lessons and games. The test set includes independently sourced images with their own credits and licence terms.
Keep visible spaces between letters and wider gaps between words. Test a clue as both text and an exported file before giving it to someone else. A code reader can produce real letters from the wrong grouping; meaningful-looking text alone is not evidence of the intended message.