1 · Import the source
Open the recording and decode a complete passage. For a long file, review one interval at a time and note the interval you used.
Processed on your device
Morse Code Audio to Text
Convert Morse code audio to text, review uncertain letters, then copy or download TXT. A share link contains text only, never the recording.
Processed on your deviceNo sign-upEditable letters · Copy · TXT export
Drop your audio or video here
or choose a file to get started
MP3 · WAV · M4A · OGG · FLAC / MP4 · MOV · WebM · MKV
Up to 30 minutes · 200 MB. Files over 2 minutes open the first 60 seconds as a preview; you can pick other parts afterwards. Format support depends on your browser.
You can also paste a file with ⌘ / Ctrl + V
No recording? Try an exampleSynthesized Morse; music is credited below. Speech is synthesized.
Music excerpt: “Monkeys Spinning Monkeys” by Kevin MacLeod, cropped and mixed with synthesized Morse. incompetech.com · CC BY 4.0
Audio, video and images are processed in your browser. Your files are not uploaded.
2 · Check the transcript
Open each doubtful character, replay its available interval and save a correction. Check word boundaries as well as individual letters.
3 · Choose an output
Copy only the text, copy the Morse marks, or download TXT containing both. A share link carries the text and marks without the recording.
A transcript worth keeping
Keep the source filename and the reviewed interval alongside your exported text. Check repeated letters, numbers and word gaps directly against the sound. The tool shows the original text when your edits change it, so you can distinguish an engine interpretation from a reviewed version before copying the result.
What is included in an export?
The TXT download contains the current text followed by its Morse representation. It is not a subtitle file and does not contain a timestamp for every word. A share link contains text and Morse in the URL fragment; it does not attach audio, preserve your whole review session or hide the message from anyone who receives the link.
Check the gap before joining words
.... .. / - .... . .-. . = HI THEREA lost word gap can turn HI THERE into HITHERE even when every letter is correct. Listen for the pause between the groups. Keep uncertainty in your notes if the recording does not establish the boundary, rather than relying only on a likely phrase.
Resolve uncertain letters with signal inspection →Questions before you start
Can this transcribe speech mixed with the beeps?
No. It interprets Morse tones, not spoken words. Speech in the background may interfere with the signal and need a shorter selection or a different pitch.
Can I download SRT subtitles?
The current result download is TXT with text and Morse. It does not generate SRT, VTT or a synchronized subtitle track.
Will my edits still be here after reloading?
The review result is held in memory. Copy or download your checked result before leaving the page; a text-only share link is not a backup of the source recording.