Google Maps for language learning
Every language you know is a shortcut to another.
Isogloss finds it, scores it, and shows you where to learn it — free.
0
languages mapped
0
distance tiers
$0
to start
Customize
Example
✓ Hindi
✓ English
Nepali
Easy★★★★★
96%
Same scriptShared grammar
~300 hrs to fluency
Your best next languages
Your roadmap, leveled up
01Search-first
Or just look up any language
Look up any language directly.
02See the relationships
Interactive language graph
Closest relatives ring the center.
Reading the graph
Center — selected language
Inner ring — same branch
Outer ring — same family
Bigger nodes share more grammar and vocabulary.
03Using this well
How the resources work
Sorted the same way, every time.
Watch
Comprehensible input, searched fresh.
Read
Graded readers, native Wikipedia.
Listen
Podcasts and slow-speech audio.
Speak
Free-tier exchange with native speakers.
Study
Structured apps, spaced-repetition decks, grammar.
Paid & institutional
Surfaced whenever free material runs thin.
How Isogloss estimates hours and scores
Hour bands follow the FSI-style category system for English speakers. Scores blend branch, family, script, and grammar overlap — a compass, not a measurement.
04Browse by relationship
The language family tree
Click a family to expand it.