Web app · Medical
Alpha-Gal Safe
Paste any ingredient list and see the hidden mammal ingredients — in your browser
The alpha-gal checker: a 45-term mammalian-derivative lexicon gives every label a red, amber or green verdict with the flagged terms and why, plus a diary that links a reaction back to the meals you ate 2–6 hours earlier. Free, nothing leaves your browser.
Stored in your browser only. Nothing you do in the web version is sent to our servers. Clear your browser data and it's gone — so export a backup from the in-app menu if you want to keep it.
This app is a community proposal.
Try the full browser version now. We build the iPhone and Android app once 100 people upvote it.
We'll email you once, when it ships. Unsubscribe anytime.
In your browser
What you can do in Alpha-Gal Safe on the web
Red / amber / green in one tap
Paste a label and get “Avoid”, “Check the source” or “Looks safe”, with every flagged term named and a plain-language reason it is risky.
The full 45-term lexicon
Gelatin, tallow, lard, rennet, collagen, heparin, lanolin, magnesium stearate, mono- and diglycerides, whey, casein and 34 more — across foods, dairy, additives, medications and cosmetics, with every alias the label might use.
Delayed-reaction timeline
Log a reaction and the app surfaces every meal eaten 1.5–7 hours earlier, closest first, highlighting the red and amber ones — the AGS delay that makes nobody suspect lunch.
My Foods, your own verdict list
Save what you check into a searchable safe / caution / avoid list with a verdict mix chart, per-food notes and a re-check button.
Tick-bite log
Every new lone-star bite can re-sensitize you, so bites get their own log with days-since counts.
Dairy strictness is yours
Some people with AGS drink milk fine, others react to butter — flip one switch and dairy scores as Avoid instead of Caution.
Screens
Every screen, rebuilt for the browser
-
1
Ingredient check
Days reaction-free, the paste-a-label checker, and your recent checks.
-
2
My Foods
Your saved safe / caution / avoid list with a verdict-mix donut, search and filters.
-
3
Food detail
The verdict, every flagged term and why, the full ingredient list and your note.
-
4
Reaction diary
Reactions per week, every logged reaction with its suspect meal, and the meal timeline.
-
5
Reaction detail
The 2–6h suspect-meal timeline that back-links a reaction to what you ate.
-
6
Log a meal
Name, date and time, plus an optional label that is checked live as you type.
-
7
Log a reaction
When it started, severity, the nine AGS symptoms and a note.
-
8
Tick bites
Every bite with body location, notes and days since — because bites re-sensitize you.
-
9
Reference
Where mammal ingredients hide, by category — tap to read all 45 terms and their reasons.
-
10
Settings
Dairy strictness, CSV and JSON export, sample data, erase, and the medical disclaimer.
Try it with sample data: Loads eight saved foods, eighteen logged meals across three weeks, three reactions (one with an ER note) that line up inside the 2–6h window, and three tick bites. You can start fresh at any time.
Ready? It's free.
No account, no install, no subscription. Everything you do stays in this browser.
Your say
What should Alpha-Gal Safe do? Tell us before we build it.
Tell us what to build next.
Comments need a free Google sign-in, so every one is from a real person.
Sign in with Google to commentNo comments yet — be the first to say what this app should do next.
Questions
Is the web version of Alpha-Gal Safe free?+
Yes. Every screen is free to use: no subscription, no in-app purchases, no account.
Do I need an account?+
No. Open Alpha-Gal Safe and start using it right away. Sign in with Google only if you want to upvote an app, save it to your list, or leave a comment.
Where is my data stored?+
Only in this browser's local storage. Nothing you enter is sent to our servers, so we can't see it, back it up, or restore it. Clearing site data, a private window, or another device starts empty. Export a backup from the in-app menu to keep it.
Is there a Alpha-Gal Safe app for iPhone or Android?+
Not yet. Alpha-Gal Safe is a community proposal: the browser version is complete, and we build the iPhone and Android app once 100 people upvote it. Upvoters get one email when it ships.