Lounge Frog

Turns airport codes (JFK, LHR) and airline codes (NH, AA) on any page into links to Lounge Frog.

Lounge Frog turns the airport and airline codes you already read every day into links to the lounges behind them. Frequent flyers live in a world of three-letter codes. Trip reports say "flew JFK-LHR on the 77W." Forum threads argue about whether MIA-HND could work with a 789. Itinerary emails, seat maps, award-search results, mileage-run spreadsheets, airline press releases and route-announcement blogs are all written in the same shorthand. You know exactly what those codes mean. What you usually don't know, without opening another tab and searching, is which lounges you can actually get into at each of those airports with the cards, statuses and memberships you hold. Lounge Frog closes that gap. Install it, and every airport code on every page you read (JFK, LHR, SFO, KEF, EZE, SCL, and more than 6,000 others) quietly becomes a link to that airport's page on loungefrog.com. Every airline code (AA, BA, NH, DL, JL, and the rest) becomes a link to that airline's page, so you can jump from a flight number to the lounges that carrier gives you access to. The text on the page doesn't change. The layout doesn't change. The codes simply gain a subtle green underline and a light highlight, and when you hover, the link fills in so you know it's there. Click, and the lounge guide opens in a new tab. Ignore it, and the page reads exactly as it always did. WHAT IT DOES Links airport codes everywhere you read. Every IATA airport code, all 6,000-plus of them, becomes a link to loungefrog.com/airports/<code>. Where Lounge Frog has a lounge guide, that page lists every lounge in the terminal, which programs, cards, alliances and fare classes get you in, current hours, reviews and photos, and whether you can move airside between terminals to reach a better lounge. Links airline codes too. Two-letter airline codes become links to loungefrog.com/airlines/<code>, where you can see which lounges that airline's premium cabins and elite tiers unlock. The extension also recognizes a code followed by a flight number, such as "NH 7" or "AA1234", and links just the airline portion so the flight number stays plain text. Works on any website. Flight-review blogs, frequent-flyer forums, airline sites, booking confirmations in webmail, Google Docs and Sheets you have open, Reddit, news articles about route launches, aviation enthusiast communities, your company's travel portal. Anywhere text appears in the browser, the codes in it become links. Pages that load content dynamically, such as infinite-scroll feeds, chat apps and single-page apps, are handled too: new text is scanned as it arrives, in the browser's idle time, so scrolling and typing stay smooth. Understands route shorthand. Codes connected by hyphens, slashes and commas are all recognized, so "JFK-LHR", "MIA-HND/ICN", "ORD/PHL/DFW/LAX" and "(SFO)" each link every code inside them. Only the code itself becomes the link, never the punctuation around it. Only links real codes, and knows which ones are also words. This is the part that makes the extension pleasant to leave running all day. It doesn't guess. Only genuine IATA airport codes are linked, from the full reference list bundled inside the extension; made-up codes stay plain text. Hundreds of real codes also happen to be everyday words or abbreviations: THE is an airport in Brazil, NEW is in Papua New Guinea, GIG is Rio, USA is in Alabama. Those only link when the page uses them the way an airport code is used, in parentheses after a name ("Rio de Janeiro (GIG)") or joined to another code in a route ("KEF-EZE", "GRU/SCL"). A headline that says THE BIG NEWS stays exactly as written. Handles the ambiguous ones carefully. Some airline codes double as everyday words or abbreviations: AS (Alaska Airlines, but also the word "as"), IT, UP, AM, PM, OR, NO, ME, DE, LA, CA and the like. Those only link when they appear directly before a flight number, such as "AS 123" or "UP1", where the meaning is unambiguous. A sentence that says "9 AM" or "sign up" stays exactly as written. Aircraft type names are respected as well: "A320" and "A340" are never mistaken for an airline code with a flight number attached. Leaves the right things alone. Existing links are never re-linked, so a page's own navigation and cross-references keep working. Text inside code blocks, form fields, text areas, search boxes, buttons, dropdowns and any editable area is left untouched, so the extension never interferes with something you're typing. Scripts, styles and hidden elements are skipped entirely. Turns off with one switch. Open the toolbar popup and flip the switch. Every link on every open tab reverts to plain text immediately, and new pages load without linking until you switch it back on. No reload needed either way. THE POPUP: YOUR LOUNGE ACCESS AT A GLANCE Click the Lounge Frog icon in the toolbar and you get a compact card with what matters when you're mid-trip: your name, your home airport, the programs and cards on your Lounge Frog profile, and a summary of the lounge access those give you. It's the same information you'd see on your loungefrog.com profile, brought to the corner of whatever page you're reading. If you aren't signed in, the popup says so and offers a link to sign in on loungefrog.com. If the Lounge Frog API can't be reached, it tells you plainly and offers a retry rather than showing stale or invented data. ONE SIGN-IN, SHARED WITH THE SITE You never enter a password into the extension. Sign in on loungefrog.com the way you normally would, and the extension picks up that session automatically. Sign out from the website, and the extension signs out too. Sign out from the popup, and the website session ends as well. There's exactly one place your credentials live, and it's the site itself. Under the hood, a small script that runs only on loungefrog.com mirrors the site's session token into the extension's private storage, and mirrors changes back the other way. If the token is ever rejected by the API because it expired or was revoked, it's cleared on both sides so you're never stuck in a half-signed-in state. ALWAYS CURRENT The full IATA airport list ships inside the extension, so every airport links from the first page load with no network request at all. Lounge Frog adds lounge guides and airlines as it covers more of the world, and the extension fetches that list from the Lounge Frog API when it's installed and refreshes it once a day in the background, so a newly covered airport or airline starts linking without an extension update. A bundled snapshot of that list is the fallback if the API is temporarily unreachable. BUILT FOR PERFORMANCE Scanning every page you visit sounds heavy. It isn't, because the extension was built to stay out of the way: • Pages are scanned in slices during the browser's idle time, so long threads and huge documents never freeze while they're processed. • Changes on busy pages, such as chat apps and live feeds, are batched and handled together instead of one at a time. • Text nodes the extension has already processed are remembered and never rescanned, so there's no wasted work and no risk of double-linking. • A quick pre-check skips any block of text that can't possibly contain a code, which is most of them. • The code lists are held in memory as sets, so checking whether a word is a real airport takes constant time even with six thousand of them. In practice the extension is imperceptible. You'll notice the green links, not the extension. PRIVACY Everything the extension does to a page happens locally inside your browser. Page content is read to find codes and is never transmitted anywhere. There is no analytics, no tracking, no advertising identifiers and no third-party services of any kind. The only network requests the extension makes are to the Lounge Frog API: • Once a day, to fetch the list of airport and airline codes. • When you open the popup while signed in, to fetch your own profile so it can show your access. Nothing is sold, shared or used for any purpose other than linking codes and showing you your own lounge access. The full privacy policy is linked from this listing. PERMISSIONS, EXPLAINED Storage: caches the airport and airline lists, your on/off preference and the loungefrog.com session token so the popup can show your profile. Alarms: schedules the once-a-day refresh of the airport and airline lists. Access to lounge-frog-api.onrender.com: the Lounge Frog API, used only for the list refresh and, when you're signed in, your profile. Read and change data on all websites: the extension's single purpose is to link codes wherever they appear, so it needs to read page text on every site. This is the permission that makes the feature work. Reading happens locally and no page content ever leaves your browser. Access to loungefrog.com: lets the extension mirror the site's sign-in state so one sign-in covers both. The extension uses no remote code. Everything it runs ships inside the package you install. WHO IT'S FOR Frequent flyers who read trip reports, forums and route news and want lounge details one click away instead of one search away. Points and miles enthusiasts comparing which card or status unlocks the best lounge at a connection airport. Travelers planning a multi-city trip who want to check each stop's lounges as they read an itinerary. Aviation enthusiasts and route-map watchers who follow airline network news and like to know what's on the ground at each airport being discussed. Travel managers and assistants booking on behalf of others, who need to answer "what lounge can they use at DFW?" quickly. Anyone who's ever copied an airport code out of an email, opened a new tab and typed it into a search box. A FEW EXAMPLES Reading a forum post that says "the heavy premium 789 should be considered for MIA-HND/ICN"? MIA, HND and ICN each link to their lounge guides. Got a confirmation email for "AA 1234 DFW-LHR"? AA links to American's page, DFW and LHR link to their airports, and the flight number stays as plain text. Scrolling a route-announcement article that lists "NGO/KIX/CTS/TPE from ORD/PHL/DFW/LAX"? Every one of those eight airports is a link. Reading a page that mentions "9 AM", "sign UP", "THE USA" and "an A320"? Nothing changes, because none of those are being used as airport or airline references. Looking at a Kayak or Google Flights result that says "KEF-EZE, 1 stop FRA" or "Change planes in Santiago (SCL)"? KEF, EZE, FRA and SCL all link, whether or not Lounge Frog has a lounge guide for them yet. GETTING STARTED 1. Install the extension. 2. Open any page with airport codes on it. They're already linked. 3. Optionally, sign in on loungefrog.com. The popup will show your profile and lounge access, and the extension stays signed in as long as the site is. 4. Use the switch in the popup whenever you'd rather see a page without links. That's it. There's no setup, no configuration and no account required for the linking itself. Signing in only adds the profile view in the popup. FREQUENTLY ASKED QUESTIONS Does it slow down my browser? No. Scanning runs in idle time, in small slices, and skips any text that can't contain a code. Even very long forum threads and large documents are processed without a visible pause. Will it break pages or forms? No. The extension never touches existing links, form fields, text areas, editable regions, code blocks or scripts. It only wraps plain text codes in a link and leaves the surrounding markup as it was. Turning the switch off unwraps every link and restores the original text exactly. Why isn't a certain airport linked? Usually because the code is also an ordinary word (THE, NEW, BIG, GIG and hundreds more) and the page isn't using it like a code. Those only link in parentheses after a name or joined to another code in a route, such as "(GIG)" or "KEF-GIG". Codes that run into other letters or digits, such as "AJFK" or "JFK2", are also left alone because they aren't references to an airport. What if Lounge Frog doesn't have lounges for that airport yet? The link still works. You'll see the airport's name and city, a note that no lounges are listed there yet, and links back into the directory. Why does "AS" link in one place and not another? A handful of airline codes are also ordinary words. To avoid turning every "as", "it" and "up" into a link, those codes only link when they're directly followed by a flight number, where the meaning is clear. Do I need a Lounge Frog account? Not for linking. Airport and airline links work for everyone the moment the extension is installed. An account only adds the profile view in the popup, which shows your home airport, programs and personal lounge access. How do I sign in? On loungefrog.com, the normal way. The extension picks up the session automatically. You never type a password into the extension itself. What happens when I sign out? Signing out on the website signs the extension out, and signing out from the popup signs the website out. They're one session. Does the extension send my browsing to Lounge Frog? No. Page content is read locally and never transmitted. The only requests go to the Lounge Frog API, for the code list once a day and for your own profile when you open the popup while signed in. Can I turn it off for one site? The switch in the popup turns linking off everywhere. Per-site control isn't available yet; if it would help you, tell us through loungefrog.com. Does it work in Google Docs, Gmail, Outlook or Slack? It works anywhere page text is rendered as normal text. Some web apps draw text on a canvas or in unusual ways, and codes inside those can't be linked. Ordinary web pages, webmail, forums, blogs and news sites work as expected. Does it work on other Chromium browsers? It's built for Chrome using Manifest V3 and should work on Chromium-based browsers that support Chrome extensions, such as Edge, Brave and Arc. How often is the code list updated? The airport list ships inside the extension and is updated with each release. The list of airlines and of airports with lounge guides refreshes from the Lounge Frog API once a day, automatically, with a bundled snapshot as the fallback. Does it use any remote code? No. Everything the extension runs is inside the installed package. The API only supplies data: the list of codes and your profile. ABOUT LOUNGE FROG Lounge Frog is a guide to airport lounges worldwide: which lounges exist at each airport, exactly who can get in and how, current hours and amenities, real reviews and photos, and whether you can reach a lounge in another terminal without clearing security again. Visit loungefrog.com to browse airports, set up your profile with the cards and programs you hold, and see your personal access at every airport you pass through. This extension is the fastest way to bring that guide to wherever you're already reading.