About Sylvarium

Sylvarium is a reading companion. Stretch your mind by reading more advanced texts without worrying about new or difficult to remember words. Save a sentence showing how it was used and where you found it. Build your own personal vocabulary, rooted in real reading.

Got 5 minutes?
Review your looked up words instead of doom-scrolling.

What you can do

• Look up definitions, pronunciation, etymology, synonyms and antonyms from Wiktionary
• Aid memory by saving sentences and references
• Choose specific words for focused revision
• Organise your books into reading lists
• Review words with 3 modes: Look & See, Multiple Choice, and Type It
• Track your history and revision progress
• Export and import your data as a backup

Your data

No account needed. All your words and books are stored in your browser — nothing is sent to a server. Use the Export option in Settings to save a backup, and Import to restore it on another device.

Why Sylvarium?

The name comes from sylva, the Latin word for forest. Every word you look up is a seed. Every sentence you save helps it take root. Every revision helps it grow. Over time, you cultivate a living forest of language in your mind — not memorised from lists, but gathered from the pages of things you actually read. Sylvarium is where your words put down roots.

Read more. Look up the words. Remember them.