Free pollen widgets for any website
Drop a one-line iframe on a blog, pharmacy site, or local resource. The widget shows real pollen levels for any city or coordinate, updates daily, and links back to the full forecast. No API key needed.
One-line install
Replace 'london' with any of our 52 curated cities, or use coordinates for anywhere on Earth (see the customizer below).
<iframe src="https://atmospore.com/widget/london"
width="300" height="250" frameborder="0"></iframe>Two layouts
Top species
Ranked list of today's strongest pollen species at the location. Best for allergy-focused audiences who care about specific allergens.
- Shows actual species names (Birch, Oak, Pine family…)
- Numerical grain counts per species
Categories
Tree, grass, and weed pollen with proportional bars. Best for general-audience sites where readers think in broad categories.
- Visual tree / grass / weed split with icons
- At-a-glance: which category is dominant today
Live previews
Light, top species
Default look for most blogs and white sites.
Dark, top species
Drop into dark-themed pages without a background mismatch.
Light, categories
Tree / grass / weed view for general-audience sites.
Localised (Norwegian)
Use the locale prefix to render in Norwegian or Swedish.
Customize your widget
Pick a city or supply your own coordinates. Adjust theme, layout, and language. Copy the code when it looks right.
Common questions
Where does the data come from?
Our model combines GFS weather data with ground-truth observations from professional aerobiology networks. See the science article for the methodology.
Is there a usage limit on embeds?
No. Widget loads are served from CloudFront, so they don't count against any API quota. Embed it on as many pages as you like.
What if my city isn't in the list?
Use coordinate mode in the customizer above. We have a global model at ~28 km resolution, so any populated point on Earth has a forecast.
Can I customize the colors or fonts?
Not in v1 beyond light/dark theme. The widget keeps a consistent look so embedders know what they're getting. Reach out if you need full white-label customization.
Does the widget track visitors?
No third-party tracking inside the iframe — no Google Tag Manager, no consent banner. The only network requests are to load the widget itself.
Want richer data instead?
If a static iframe isn't enough — say you want raw species values, custom date ranges, or area aggregates — the Atmospore API gives you everything the widget shows and more, as structured JSON.