Morse Code File Decoder
Upload a .txt file containing Morse code — dots, dashes, and slashes — and decode it to plain English instantly. Supports standard ITU Morse format. All processing in your browser.
/ between words. Example: .... . .-.. .-.. --- / .-- --- .-. .-.. -.. = HELLO WORLD. Unrecognised codes appear as #.
About This Morse Decoder
This tool decodes text files that contain International Morse Code — sequences of dots (.), dashes (-), and slashes (/) — and converts them back to readable plain English text.
It is the reverse of the Text File to Morse converter. If you have stored Morse code in a file — from a practice session, a radio log, or an output from another tool — upload it here and get the decoded text immediately.
The decoder follows the ITU International Morse Code standard. Letters within a word are separated by single spaces. Words are separated by a forward slash (/). Any code sequence not found in the standard produces a # in the output.
Expected File Format
How to Use
Prepare Your File
Save your Morse code as a .txt file. Letters separated by spaces, words by /.
Upload the File
Drag and drop your .txt file or click to browse. The Morse content appears in the preview box.
Decode
Click "Decode to Text". The decoded plain English appears in the output box instantly.
Copy or Download
Copy the decoded text to clipboard or download it as a .txt file.
Features & Specifications
Decoding Capabilities
- All 26 letters A–Z
- Numbers 0–9
- Common punctuation (period, comma, question, etc.)
- Word separation via / (slash)
- Unknown codes shown as # for easy identification
- Files up to 5MB
- Download decoded result as .txt
Privacy & Technical
- FileReader API — no server upload at any point
- File content never transmitted over the internet
- ITU International Morse Code standard
- Handles extra spaces and whitespace gracefully
- Works on desktop and mobile browsers
- Instant processing — no server round-trip wait