Best OpenNMT Alternatives in 2026

Updated October 2026

20 apps from translation software ranked against OpenNMT on the same published basis.

OpenNMT alternatives compared

#	App	Score	Free plan	From	Runs on
1	Crowdin	6.8	Free plan	Free	Android, API, iOS, Linux, Mac, Web, Windows
2	Papago	6.7	Free plan	—	Android, API, Browser, iOS, Mac, Web, Windows
3	QuillBot	6.7	Free plan	—	Android, Browser, iOS, Mac, Web, Windows
4	iTranslate	6.6	Free plan	Free	Android, Browser, iOS, Mac, Web, Windows
5	Lara Translate	6.6	Free plan	$9.99/mo	Android, API, iOS, Web
6	Localizely	6.6	Free plan	$16/mo	API, Linux, Mac, Web, Windows
7	CafeTran Espresso	6.5	Free plan	€6.67/mo	Linux, Mac, Windows
8	locize	6.5	Free plan	$7/mo	Android, API, iOS, Web
9	OneSky	6.5	Free plan	$0.01/mo	Android, API, iOS, Web
10	Tolgee	6.5	Free plan	€4.83/mo	Android, API, Browser, iOS, self-hosted, Web
11	TranslateX	6.5	Free plan	$24/mo	API, Browser, self-hosted, Web, Windows
12	Weblate	6.5	Free plan	€47/mo	API, Linux, self-hosted, Web
13	Yandex Translate	6.5	Free plan	Free	Android, API, iOS, Web
14	ConveyThis	6.4	Free plan	$12/mo	API, Web
15	Déjà Vu X3	6.4	Free plan	Free	Windows
16	Google Cloud Translation	6.4	Free plan	$0.08/mo	API
17	GTranslate	6.4	Free plan	$12/mo	API, Web
18	i18nexus	6.4	Free plan	$14/mo	API, Web
19	Localizer	6.4	No	$35/mo	API, Web
20	TextUnited	6.4	Free plan	€150/mo	API, Web

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What is the best alternative to OpenNMT?

Crowdin, number 1 in translation software with a score of 6.8 out of 10. The others here: Papago, QuillBot, iTranslate and 16 more.

What is the best free alternative to OpenNMT?

Crowdin is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.