Natural Language Processing (NLP)FreeAPI Gateway

LibreTranslateFree REST API

Free and open-source machine translation engine powered by Argos Translate

API Docs

Developer Workbench & Live ConsoleZero-Auth

Test real endpoints directly, inspect live JSON, or copy implementation code.

GET
curl -X GET "https://libretranslate.com/languages" \
  -H "Accept: application/json"
ResponseReady / Idle

Ready for Live Evaluation

Click [ Send Request ] to dispatch a real request via FreeAPI proxy and inspect real JSON payloads.

Rate Limit
Unlimited
Auth Mode
Zero-Auth (Public)
Security & CORS
HTTPS • CORS Ready
Protocol
REST / JSON
COMPANION DEVELOPER TOOL0ms Client Sandbox

Text Readability & Content Metrics Analyzer

Calculate Flesch Reading Ease, Grade Level, Gunning Fog index, syllable counts, and reading durations in real time.

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Interactive Web Tool Available

Test and interact with this service in your browser using our Text Readability & Content Metrics Analyzer tool.

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Head-to-Head Comparison
DeepL vs LibreTranslate: Machine Translation APIs Compared
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Frequently Asked Questions (FAQ)

Technical and integration answers for LibreTranslate.

Yes, LibreTranslate is listed as a free endpoint on FreeAPI Directory with an allowance of: Unlimited.
Official Service Provider Ownership: LibreTranslate

All data feeds, trademarks, and documentation belong directly to the original API provider. FreeAPI serves purely as a discovery index and documentation reference for developers.

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