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Public Beta

Tool · a minute per word

Tone Explorer

Paste a Thai word and watch the tone get worked out — syllable by syllable, with the rule that decided each one shown rather than asserted.

No signup. Paste anything, or tap an example.

This is a reference tool rather than a drill, so Today’s Plan does not schedule it. It is here for the moment a tone surprises you.

A tone analysis of one Thai syllable with five numbered steps ending in the resulting tone
The working, not just the answer.

What a round looks like

Not the answer — the working

01

It shows the decision, not just the result

Consonant class, vowel length, live or dead syllable, tone mark: the tone of a Thai syllable is the output of a short chain of facts, and the explorer walks it. Once you have seen the chain run a few times you start predicting the end of it yourself.

A tone analysis of one Thai syllable showing its onset, vowel and coda, then five numbered steps: consonant class, syllable ending, vowel length, syllable type, and the resulting tone
ขอบ, worked out: high class, dead ending, long vowel — therefore low tone.
02

And it says when it is not sure

Where the spelling rules and the recorded pronunciation disagree — which happens, especially with loanwords and names — the explorer marks the analysis as an estimate instead of printing a tone with false confidence.

Spelling-predicted tone and spoken tone are different claims. A word whose recording disagrees with its rule is not necessarily a defect, and the tool is built to say so.

Any
Thai you paste, not a fixed word list
Per-syllable
analysis, not per word
Shown
rules, not just an answer
Marked
when the evidence is uncertain

Train what this explains

Tone Pairs is the drill for hearing the difference the rules predict.

Tone Pairs

The rules themselves

Consonant class is the first input to every tone decision.

Consonant Trainer