A morse code converter is an online tool that translates plain text into Morse code dots and dashes, and decodes Morse code back into readable text. SWEDevTools: Prism provides a free, instant morse code converter that runs entirely in your browser with no server uploads, supporting letters, numbers, punctuation, and bidirectional encoding. Whether you are learning Morse code, solving CTF puzzles, or generating test fixtures, this converter handles it locally and offline as an installable PWA.
Yes, the SWEDevTools: Prism morse code converter is completely free with no signup, no ads, and no usage limits. All features are available immediately.
Yes. SWEDevTools: Prism is a Progressive Web App (PWA) that you can install on your device. Once installed, the morse code converter works without an internet connection.
Yes. All processing happens locally in your browser. No text or Morse code is ever uploaded to a server, making it safe for confidential or sensitive content.
SOS in Morse code is "... --- ..." (three dots, three dashes, three dots). It is the internationally recognized distress signal, chosen because it is easy to transmit and unmistakable.
The forward slash "/" represents a word separator in written Morse code. Letters within a word are separated by spaces, and words are separated by "/" (or a longer pause in audio Morse).
Yes. The encoder automatically normalizes lowercase input to uppercase before converting, since Morse code does not distinguish between letter cases.
When encoding, unknown characters pass through unchanged. When decoding, unrecognized Morse sequences are replaced with "?" so you can identify and fix them.
No. Morse code is an encoding scheme that represents characters as dots and dashes—it is not encryption. Anyone who knows Morse code can read the message. For security, use proper encryption tools.
CW stands for Continuous Wave, the radio transmission method used to send Morse code over the air. Amateur radio operators (hams) still use CW for long-distance communication because it requires minimal bandwidth and can be decoded by ear.
Military forces historically used Morse code for field communications, naval signaling (via signal lamps), and aviation. While largely replaced by digital systems, Morse remains a backup communication method and is still taught in some military training programs.
Yes. All digits 0–9 have standard Morse code representations. For example, the number 1 is ".----" and 0 is "-----". The converter handles mixed text and numbers seamlessly.
SWEDevTools: Prism runs entirely in your browser with no server dependency, works offline as a PWA, requires no signup, and offers pipeline chaining to combine Morse with other encoding tools. Most online alternatives require an internet connection and may upload your data to their servers.
International Morse Code is the standardized version of Morse code adopted worldwide, replacing earlier American Morse Code. It assigns unique sequences of dots (dits) and dashes (dahs) to each letter, number, and common punctuation mark. This is the version used by this converter.
Yes. Unlike morsecode.world, SWEDevTools: Prism runs entirely in your browser with no server-side processing, works offline as an installable PWA, requires no signup, and lets you chain Morse code output into 80+ other developer tools in a pipeline. Your text is never uploaded to any server.
smalldev.tools is no longer available. Prism by SWEDevTools offers the same developer tools and more, with offline support, pipeline chaining, and completely free usage — no signup required.