Morse Code File Decoder
Upload .txt files and decode Morse code to text instantly
Status: Ready
Upload a file to start decoding
Morse Code File Upload
Drag & drop your Morse code file
or
Upload .txt files containing Morse code (max 1 MB)
Decoded Text
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Upload a Morse code file to see the decoded text here
Built with International Communication Standards
This morse code to text file decoder implements the International Morse Code standard (ITU-T Recommendation F.1), the official telecommunication protocol used globally since 1865. Our decoder supports all standard characters:
Letters A–Z
26 uppercase patterns
Numbers 0–9
10 digit patterns
Punctuation
Period, comma, question mark, apostrophe, exclamation, slash, parentheses, ampersand, colon, semicolon, equals, plus, hyphen, underscore, quotation mark, dollar sign, at symbol
Unlike basic converters, our file-based decoder preserves line breaks, handles batch data, and flags unrecognized sequences—essential for professional radio log analysis.
Text vs File Morse Decoding
| Feature | Online Text Input | File Upload (.txt) |
|---|---|---|
| Best For | Quick single messages | Logs, transcripts, batch data |
| Character Limit | ~500 characters | Up to 1 MB (>100,000 chars) |
| Line Breaks | Manual entry | Automatically preserved |
| Download | Copy only | Download decoded + original |
| Use Case | Learning, practice | Research, radio logs, archival |
| Invalid Detection | Basic | Advanced with count |
Pro Tip: For quick, interactive Morse translation without file upload, try our online Morse Code Translator. It's perfect for real-time encoding and decoding of short messages with audio playback.
Advanced Morse Code to Text Decoding
Powerful Decoding Features
- •Upload .txt files containing Morse code in dot-dash format (supports • and — symbols)
- •Automatic decoding to readable text using International Morse Code (ITU-T F.1)
- •Real-time character count and invalid sequence detection for quality assurance
- •Download options for decoded text or re-download original Morse code files
- •Support for full character set: letters, numbers, and common punctuation marks
- •Batch processing: handle large files up to 1 MB (over 100,000 characters)
Professional Use Cases
- •Educational purposes – Teaching and learning Morse code with file-based exercises
- •Ham radio operators – Decoding received transmissions and contest logs
- •Historical research – Analyzing archival telegraph messages and naval communications
- •Cryptography enthusiasts – Solving Morse-based puzzles and ciphers
- •QSL card verification – Confirming Morse code accuracy in amateur radio contacts
- •Emergency preparedness – Training for backup communication systems
How It Works
Our morse code file decoder uses the ITU-T Recommendation F.1 International Morse Code standard to convert dot-dash sequences into readable characters.
Decoding Rules:
- Single spaces separate individual letters
- Forward slashes (/) or multiple spaces (2+) separate words
- Line breaks in your file are preserved in the decoded output
- Invalid sequences that don't match known Morse patterns are flagged with "?" and counted
Simply upload your .txt file containing Morse code, and our system will instantly decode it for you. You can then copy the decoded text to your clipboard or download it as a new .txt file for your records. Original files can also be re-downloaded if needed.
Frequently Asked Questions
Ready for More Advanced Morse Code Tools?
This decoder is part of Morse Code Studio, a comprehensive suite of professional Morse code tools built for radio operators, educators, and researchers.
Explore our full toolkit:
- Real-time encoding/decoding with audio playback
- Image-based Morse code extraction (coming soon)
- Audio file analysis and waveform decoding (coming soon)
- Multi-language support and custom character mapping