Periodic Table Lookup
Search all 118 elements by name, chemical symbol, or atomic number to see atomic weight, group, period, and category.
100% client-side · no upload
How to use
- Type in the search box — search by element name (e.g. carbon), symbol (e.g. Fe), or atomic number (e.g. 6).
- Matching elements appear instantly as you type.
- Leave the search box empty to see all 118 elements listed in order.
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Frequently Asked Questions
- Is this periodic table lookup free?
- Yes, completely free with no signup required.
- Does my data leave my device?
- No. The element database is embedded in the page. Nothing is sent to any server.
- Does it work on mobile?
- Yes. The search works on iPhone Safari and Android Chrome.