Compound Card Screensaver
The Compound Card screensaver shows a rotating card of real chemistry from PubChem at the NIH, key-less: molecular formula with proper subscripts, weight, IUPAC name and hydrogen-bonding counts. It's free, runs in your browser, and ESC exits.
Live preview
Press ESC to leave fullscreen. Settings are saved in your browser only.
How the Compound Card screensaver works
The saver reads PubChem at the NIH directly in your browser — no key and no account.
A rotating card of real chemistry from PubChem at the NIH, key-less: molecular formula with proper subscripts, weight, IUPAC name and hydrogen-bonding counts..
It refreshes on a schedule, so what you see stays current.
Colours can be changed in settings; nothing is stored beyond your own browser.
A worked example
A rotating card of real chemistry from PubChem at the NIH, key-less: molecular formula with proper subscripts, weight, IUPAC name and hydrogen-bonding counts.
Settings & tips
- Accent and Background recolour the display.
- Data comes straight from PubChem at the NIH in your browser.
- Press ESC to leave fullscreen.
Frequently asked questions
- Is this real data?
- Yes — it comes from PubChem at the NIH and is refreshed on a schedule.
- Is a key needed?
- No. This source is fully key-less.
- Is it free?
- Yes — free, no download, in your browser.