Prelay — NATO Phonetic Speller by MLundkvist
Highlight any code, ID, or confirmation number and get its NATO/ICAO phonetic spelling instantly, right from the right-click menu.
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About this extension
Prelay turns any highlighted text into its NATO/ICAO phonetic alphabet spelling — instantly,
without leaving the page.
Reading a confirmation code, license plate, order number, or callsign out loud over the phone
is where typos and mishearings happen. Prelay fixes that: highlight the text, right-click,
choose "Spell using NATO alphabet," and get back something like
X7T4P9K2 → X-ray, Seven, Tango, Four, Papa, Niner, Kilo, Two
right on the page you're already on — no copy-pasting into another app or tab.
HOW IT WORKS
1. Highlight any word, code, or ID on any webpage
2. Right-click the selection
3. Choose "Spell using NATO alphabet"
A small card appears next to your selection with the phonetic spelling, a "Speak it" button to
hear it read aloud, and a "Copy" button to grab the text. If a page won't allow the on-page
card (some browser settings pages, PDF viewers), Prelay falls back to a system notification so
you still get your answer.
PRIVACY
Prelay does nothing until you right-click a selection. It reads only the text you've
highlighted, converts it entirely in your browser, and sends nothing anywhere — no accounts,
no analytics, no stored data. Full privacy policy: https://prelay.co/privacy.html
without leaving the page.
Reading a confirmation code, license plate, order number, or callsign out loud over the phone
is where typos and mishearings happen. Prelay fixes that: highlight the text, right-click,
choose "Spell using NATO alphabet," and get back something like
X7T4P9K2 → X-ray, Seven, Tango, Four, Papa, Niner, Kilo, Two
right on the page you're already on — no copy-pasting into another app or tab.
HOW IT WORKS
1. Highlight any word, code, or ID on any webpage
2. Right-click the selection
3. Choose "Spell using NATO alphabet"
A small card appears next to your selection with the phonetic spelling, a "Speak it" button to
hear it read aloud, and a "Copy" button to grab the text. If a page won't allow the on-page
card (some browser settings pages, PDF viewers), Prelay falls back to a system notification so
you still get your answer.
PRIVACY
Prelay does nothing until you right-click a selection. It reads only the text you've
highlighted, converts it entirely in your browser, and sends nothing anywhere — no accounts,
no analytics, no stored data. Full privacy policy: https://prelay.co/privacy.html
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Permissions and data
Required permissions:
- Display notifications to you
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0.0
- Size
- 16.41 KB
- Last updated
- 11 days ago (Sep 3, 2026)
- Related Categories
- License
- Mozilla Public License 2.0
- Version History
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