LibreTranslate website screenshot

LibreTranslate

Free and open-source machine translation REST API supporting 30+ languages with self-hostable deployment and no third-party service dependency. Powered by the open-source Argos Translate library, LibreTranslate provides endpoints for text translation, language detection, file translation, and translation suggestions. Deployable on-premise for full offline capability or accessible via the managed hosted service.

1 APIs 0 Features
TranslationMachine TranslationNatural Language ProcessingOpen SourceSelf-Hosted

APIs

LibreTranslate API

REST API for free and open-source machine translation supporting 30+ languages. Provides endpoints for translating text and files, detecting source language, listing supported l...

Pricing Plans

Plans

4 plans

PLANS

Rate Limits

Rate Limits

0 limits

RATE LIMITS

FinOps

Finops

FINOPS

Example Payloads

Detect Language

4 fields

EXAMPLE

List Languages

4 fields

EXAMPLE

Translate Auto Detect

4 fields

EXAMPLE

Translate Batch

4 fields

EXAMPLE

Translate Text

4 fields

EXAMPLE

Resources

🔗
Website
Website
🔗
Documentation
Documentation
👥
GitHubOrg
GitHubOrg
🔗
LinkedIn
LinkedIn
📰
Blog
Blog
💰
Pricing
Pricing
🟢
StatusPage
StatusPage
🔗
X
X
🔗
Plans
Plans
🔗
RateLimits
RateLimits
🔗
FinOps
FinOps

Sources

Raw ↑
aid: libre-translate
name: LibreTranslate
description: Free and open-source machine translation REST API supporting 30+ languages with self-hostable deployment and
  no third-party service dependency. Powered by the open-source Argos Translate library, LibreTranslate provides endpoints
  for text translation, language detection, file translation, and translation suggestions. Deployable on-premise for full
  offline capability or accessible via the managed hosted service.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Translation
- Machine Translation
- Natural Language Processing
- Open Source
- Self-Hosted
apis:
- aid: libre-translate:libre-translate-api
  name: LibreTranslate API
  description: REST API for free and open-source machine translation supporting 30+ languages. Provides endpoints for translating
    text and files, detecting source language, listing supported languages, and submitting translation suggestions. Can be
    self-hosted for unlimited offline use or accessed through the managed portal with API key authentication.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://libretranslate.com
  baseURL: https://libretranslate.com
  tags:
  - Translation
  - Machine Translation
  - Language Detection
  - Open Source
  properties:
  - type: Documentation
    url: https://docs.libretranslate.com
  - type: OpenAPI
    url: https://libretranslate.com/spec
  - type: OpenAPI
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/openapi/openapi.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/json-schema/translate-request.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/json-schema/translate-response.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/json-schema/detect-request.json
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/json-schema/language.json
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/vocabulary/vocabulary.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/json-ld/jsonld.json
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/plans/plans.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/rate-limits/rate-limits.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/finops/finops.yml
  contact:
  - FN: LibreTranslate Community
    url: https://community.libretranslate.com
common:
- type: Website
  url: https://libretranslate.com
- type: Documentation
  url: https://docs.libretranslate.com
- type: GitHubOrg
  url: https://github.com/LibreTranslate
- type: LinkedIn
  url: https://www.linkedin.com/company/libretranslate
- type: Blog
  url: https://community.libretranslate.com
- type: Pricing
  url: https://portal.libretranslate.com
- type: StatusPage
  url: https://status.libretranslate.com
- type: X
  url: https://x.com/libretranslate
- type: Plans
  url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/plans/plans.yml
- type: RateLimits
  url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/rate-limits/rate-limits.yml
- type: FinOps
  url: https://raw.githubusercontent.com/api-evangelist/libre-translate/refs/heads/main/finops/finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com