Live onscreen translator

Live Onscreen Translator

Speak in one language — see a live translation in a thin bar for projectors and talks. Use desktop overlay to float over slides on the same Mac.

Spoken languageTranslate to

Display modeText colorText sizePreview

Sample text

Show originalShow live hearing

ReadyChoose languages, then Start listening — translation appears in the bar below.

Type a line (no mic)

Presentation = full-screen bar

Live · Spanish2-line CC

Start translating — previous + current line only (thin overlay)

Pick spoken language and translate-to, then Start listening. Translation appears in the bar.

Previous line + current line only — easier over slides than a tall wall of text.

Browser presentation mode only covers this window. For always-on-top over other apps, use the Mac desktop overlay (npm run overlay).

Overlay tips

Big lines show translation only. Spoken language stays in the small “Hearing” strip.
Open /overlay in a second window for a translation-only view (still a browser window).
True “float over PowerPoint on this Mac” needs the desktop app — run npm run overlay after install (see README).