Is this production-grade NLP?

No. It is a heuristic detector for lightweight workflows and quick triage.

Can it detect multiple languages in one paragraph?

It returns ranked candidates; for mixed blocks use line mode for better granularity.

Does any text leave the browser?

No. Detection runs locally with no network calls.

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🌍 Language Detector

Detect the language of any text instantly in your browser, helpful for content review, translation workflows, and sorting multilingual documents quickly.

Language Detector

Detect probable language with scored confidence, ranked candidates, and optional line-by-line batch analysis.

Input

Primary languageEnglish (en)

Confidence50%

ModeWhole text

Englishen · 2

Spanishes · 1

Frenchfr · 1

Germande · 0

Italianit · 0

How to use this tool

Paste content and pick whole-text or line-by-line detection mode.
Review ranked candidates and confidence indicators.
Export JSON/CSV results for localization or analytics workflows.

Scoring model

Language scores combine hint-word matches and script bonuses.
Confidence is relative to competing profile scores.
Short input generates warnings because ambiguity rises sharply.

Batch usage

Line mode is useful for mixed-language support exports.
CSV output captures per-line language with confidence values.
Primary language in line mode reflects dominant line count.

FAQ

Is this production-grade NLP?: No. It is a heuristic detector for lightweight workflows and quick triage.
Can it detect multiple languages in one paragraph?: It returns ranked candidates; for mixed blocks use line mode for better granularity.
Does any text leave the browser?: No. Detection runs locally with no network calls.