Name | Platform | License | Price | Latest stable release | Source availability | Translation via website | Number of supported languages | Notes |
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Anusaaraka | Unix compatible | GPL | No fee required | 0.50 | Yes | | | Rule-based, deep parser based, paninian framework based; all programs and language data are free and open-source |
Apertium | Cross-platform (web application), Unix compatible, precompiled packages available for Debian | GPL | No fee required | 3.4.2 | Yes | [1] | | Rule-based, shallow transfer; all programs and language data are free and open source |
Babylon | Windows, Mac | Proprietary software | Depends on license ($9.90–$89 for one license) | 10.3 | No | | | Prompts to install the Babylon Toolbar, a browser hijacker which is difficult to remove. |
DeepL | Cross-platform (web application) | SaaS | No fee required, paid "Pro" version available | | No | [2] | 30+ | Neural machine translation |
Google Translate | Cross-platform (web application) | SaaS | No fee required | | No | [3] | 200+ | Statistical and neural machine translation |
GramTrans | Cross-platform (web application) | Freeware | No fee required | ? | No | [4] | | Rule-based, using constraint grammar |
IBM Watson | Cross-platform | SaaS | Free, commercial (varies by plan) | 3.0 | No | | 50+ | Both rule-based and statistical models developed by IBM Research. Neural machine translation models available through the Watson Language Translator API for developers. |
Microsoft Translator | Cross-platform (web application) | SaaS | No fee required | Final | No | [5] | 100+ | Statistical and neural machine translation |
Moses | Cross-platform | LGPL | No fee required | 4.0 | Yes | | | Drop-in replacement for Pharaoh, features factored translation models and decoding of confusion networks. |
Moses for Mere Mortals | Ubuntu Linux | GPL | No fee required | 2014-11-16 | Yes | | | Free open source; based on Moses; translation memories integration. |
NiuTrans | Cross-platform | GPL | No fee required | 1.1.0 | Yes | | 400+ | Competitive performance for Chinese translation tasks; statistical machine translation. Supports phrase-based, hierarchical phrase-based, and syntax-based (string-to-tree, tree-to-string, and tree-to-tree) models for research purposes. |
OpenLogos | Windows, Linux | GPL or paid initiative taker | No fee required | 1.0.3 | Yes | | | Rule-based, deep transfer |
PROMT | Cross-platform (web application) | Proprietary software | Commercial | 12.5 | No | [6] | 20+ | Hybrid, rule-based, statistical and neural machine translation |
SYSTRAN | Cross-platform (web application) | Proprietary software | $200 (desktop) – $15,000 and up (enterprise server) | Version 7 | No | [7] | 50+ | Hybrid, rule-based, statistical machine translation and neural machine translation |
Yandex.Translate | Cross-platform (web application) | SaaS | No fee required | | No | [8] | 100+ | Statistical and neural machine translation |