SignalCrafter: Morse Trainer

Build your Morse listening skills with real audio, honest practice records and tools you can use offline. NEW IN 3.0 • Create your own practice set from A–Z and 0–9. Untried and weaker unassisted characters receive priority. • Back up your listening record as a portable JSON file. Restore merges unique attempts without replacing your current record; conflicting records cancel the import. • Export a message as a WAV audio file with your chosen speed, repeat count and pauses. • Refreshed typography, improved contrast, readable iPad layouts and lightweight reference cards. COPY LAB Choose a character set and speed, play the generated tone, then enter what you heard. Replay as needed or reveal a hint. Hinted attempts remain separate from unassisted accuracy. Review your real attempt history and share a readable report. MESSAGE STUDIO Type a message, inspect its Morse transcription and timing, and play audio with optional screen and haptic cues. SOS is joined as one continuous prosign. WAV export uses sample-based timing matching the playback plan. Unsupported characters are reported and omitted. REFERENCE AND PRACTICE Explore letters, numerals, prosigns and bundled practice-word audio; the phonetic alphabet with spoken examples; maritime signal flags; five FAA survivor ground symbols; and descriptive Beaufort wind-scale cards. Compose A–Z flag spellings, inspect substitute flags, or quiz yourself on Morse, flags and phonetics. WHAT TO KNOW This is an educational practice and reference tool, not a radio, emergency communication service or proficiency certification. Screen and haptic cues are approximate; haptics depend on device support. Audio depends on volume and the output route. Beaufort wave heights describe a well-developed open sea and are not local forecasts. Flag spelling does not encode maritime message groups. Messages are limited to 240 characters and five minutes. Practice backups accept up to 5 MB and a combined 10,000 attempts. Backup files contain your actual attempts and timestamps; share them only where you intend. An unreadable local record is preserved before an explicit reset. All tools included with one purchase. No account, ads, subscription or analytics. Practice records stay on your device unless you choose to export or share. iPhone and iPad.