# i18next vs ICU

| Attribute | i18next | ICU |
|---|---|---|
| **vioscaleAI score** | 56.8 (62% (medium)) | 57.8 (53% (medium)) |
| activity.commits_last_30d | 15 | 63 |
| adoption.dependent_repos | 49,895 | 6,271 |
| adoption.github_stars | 8,640 | 3,616 |
| content.faq | `[{"answer":"A command-line interface that consolidates key extraction from source code, type safety generation, locale file management, linting, and integration with cloud translation platforms into a single tool. It supports AST-based analysis to automatically identify translatable strings and integrates with services like Locize for cloud-based translation workflows. It is indexed under Localization I18N.","source":"https://www.i18next.com","question":"What is i18next?","confidence":0.6},{"answer":"i18next offers a free tier, so you can start without paying. Pricing changes often, so verify at source before relying on it.","source":"https://www.i18next.com","question":"Is i18next free?","confidence":0.56},{"answer":"i18next supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.i18next.com","question":"What platforms does i18next support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for i18next, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.i18next.com","question":"Can i18next be self-hosted?","confidence":0.6},{"answer":"Yes. i18next is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/i18next/i18next","question":"Is i18next open source?","confidence":0.95}]` | `[{"answer":"ICU is a widely-used open-source library that provides Unicode text handling, internationalization services, and localization support for C, C++, and Java applications. It fills gaps in platform-native Unicode support, enabling portable text processing across operating systems and programming environments. It is indexed under Localization I18N.","source":"https://icu.unicode.org","question":"What is ICU?","confidence":0.6},{"answer":"ICU is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.","source":"https://icu.unicode.org","question":"Is ICU free to use?","confidence":0.6},{"answer":"ICU supports the web, Windows, macOS, Linux, iOS, Android and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://icu.unicode.org","question":"What platforms does ICU support?","confidence":0.6},{"answer":"We have confirmed 18 integrations for ICU, including Adobe, Amazon (Kindle), Apache, Apple, eBay, Google, Chrome and Android, plus 10 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://icu.unicode.org","question":"What does ICU integrate with?","confidence":0.6}]` |
| deployment.options | `{"self_hosted":true}` | - |
| description.long | An internationalization framework that provides core translation features including pluralization rules and contextual translations. Works independently or with optional management services for larger teams. | ICU is a widely-used open-source library that provides Unicode text handling, internationalization services, and localization support for C, C++, and Java applications. It fills gaps in platform-native Unicode support, enabling portable text processing across operating systems and programming environments. |
| features.capabilities | `{"qa_checks":true,"self_hostable":true,"cldr_plural_rules":true,"managed_translation_services":true}` | `{"cldr_plural_rules":true}` |
| integrations.count | 1 | 20 |
| integrations.list | `[{"name":"Locize"},{"name":"inlang Paraglide"}]` | `[{"name":"Adobe"},{"name":"Amazon (Kindle)"},{"name":"Apache"},{"name":"Apple"},{"name":"eBay"},{"name":"Google"},{"name":"Chrome"},{"name":"Android"},{"name":"Google Maps"},{"name":"Google Analytics"},{"name":"Gmail"},{"name":"Facebook (HHVM)"},{"name":"Microsoft"},{"name":"Eclipse"},{"name":"FreeBSD"},{"name":"Debian Linux"},{"name":"CouchDB"},{"name":"Firebird RDBMS"},{"name":"ESRI"},{"name":"CERN"}]` |
| language.primary | JavaScript | C++ |
| license.spdx | MIT | - |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"ios":true,"mac":true,"web":true,"linux":true,"android":true,"windows":true}` |
| pricing | `{"type":"open_source","summary":"Open source library. Optional paid service (Locize) available for translation management.","freeTier":true,"sourceUrl":"https://www.i18next.com","retrievedAt":"2026-10-15T20:22:10.495Z"}` | `{"type":"open_source","sourceUrl":"https://icu.unicode.org","retrievedAt":"2026-08-19T14:45:32.725Z"}` |
| pricing.free_tier | yes | - |
| pricing.model | open_source | commercial |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 3 | 49 |
| release.history | `[{"url":"https://github.com/i18next/i18next/releases/tag/v26.4.6","date":"2026-10-15T17:52:48Z","type":"stable","version":"v26.4.6"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.4.5","date":"2026-10-14T14:24:58Z","type":"stable","version":"v26.4.5"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.4.4","date":"2026-10-12T07:02:52Z","type":"stable","version":"v26.4.4"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.4.3","date":"2026-10-10T06:18:17Z","type":"stable","version":"v26.4.3"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.4.2","date":"2026-09-03T19:26:49Z","type":"stable","version":"v26.4.2"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.4.1","date":"2026-09-01T04:35:08Z","type":"stable","version":"v26.4.1"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.4.0","date":"2026-08-20T09:23:18Z","type":"stable","version":"v26.4.0"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.3.6","date":"2026-07-09T13:41:43Z","type":"stable","version":"v26.3.6"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.3.5","date":"2026-07-08T14:10:40Z","type":"stable","version":"v26.3.5"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.3.4","date":"2026-06-30T06:23:42Z","type":"stable","version":"v26.3.4"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.3.3","date":"2026-06-26T11:23:27Z","type":"stable","version":"v26.3.3"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.3.2","date":"2026-06-24T04:54:03Z","type":"stable","version":"v26.3.2"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.3.1","date":"2026-06-03T14:13:49Z","type":"stable","version":"v26.3.1"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.3.0","date":"2026-05-26T12:58:38Z","type":"stable","version":"v26.3.0"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.2.0","date":"2026-05-14T19:18:56Z","type":"stable","version":"v26.2.0"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.1.0","date":"2026-05-11T07:36:51Z","type":"stable","version":"v26.1.0"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.0.10","date":"2026-05-07T05:28:35Z","type":"stable","version":"v26.0.10"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.0.9","date":"2026-05-06T10:50:05Z","type":"stable","version":"v26.0.9"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.0.8","date":"2026-04-24T19:19:38Z","type":"stable","version":"v26.0.8"},{"url":"https://github.com/i18next/i18next/releases/tag/v26.0.7","date":"2026-04-23T15:15:16Z","type":"stable","version":"v26.0.7"}]` | `[{"url":"https://github.com/unicode-org/icu/releases/tag/release-79.1rc","date":"2026-09-25T22:25:32Z","type":"prerelease","version":"release-79.1rc"},{"url":"https://github.com/unicode-org/icu/releases/tag/icu4x/2026-08-31/79.x","date":"2026-08-31T14:50:55Z","type":"prerelease","version":"icu4x/2026-08-31/79.x"},{"url":"https://github.com/unicode-org/icu/releases/tag/icu4x/2026-07-01/79.x","date":"2026-07-01T09:30:18Z","type":"prerelease","version":"icu4x/2026-07-01/79.x"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-78.3","date":"2026-03-17T20:23:47Z","type":"stable","version":"release-78.3"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-78.2","date":"2026-01-09T00:38:52Z","type":"stable","version":"release-78.2"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-78.1","date":"2025-10-30T17:21:37Z","type":"stable","version":"release-78.1"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-78.1rc","date":"2025-10-03T19:33:43Z","type":"prerelease","version":"release-78.1rc"},{"url":"https://github.com/unicode-org/icu/releases/tag/icu4x/2025-05-21/77.x","date":"2025-05-21T08:57:05Z","type":"prerelease","version":"icu4x/2025-05-21/77.x"},{"url":"https://github.com/unicode-org/icu/releases/tag/icu4x/2025-05-01/77.x","date":"2025-05-01T18:43:02Z","type":"prerelease","version":"icu4x/2025-05-01/77.x"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-77-1","date":"2025-03-13T18:00:27Z","type":"stable","version":"release-77-1"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-77-rc","date":"2025-02-21T21:42:35Z","type":"prerelease","version":"release-77-rc"},{"url":"https://github.com/unicode-org/icu/releases/tag/icu4x/2024-12-16/76.x","date":"2024-12-16T20:27:12Z","type":"prerelease","version":"icu4x/2024-12-16/76.x"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-76-1","date":"2024-10-24T17:22:31Z","type":"stable","version":"release-76-1"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-76-rc","date":"2024-09-30T21:35:03Z","type":"prerelease","version":"release-76-rc"},{"url":"https://github.com/unicode-org/icu/releases/tag/icu4x/2024-05-16/75.x","date":"2024-05-16T23:41:40Z","type":"prerelease","version":"icu4x/2024-05-16/75.x"},{"url":"https://github.com/unicode-org/icu/releases/tag/icu4x/2024-05-03/75.x","date":"2024-05-03T21:18:50Z","type":"prerelease","version":"icu4x/2024-05-03/75.x"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-75-1","date":"2024-04-16T00:57:15Z","type":"stable","version":"release-75-1"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-75-rc","date":"2024-03-29T00:25:41Z","type":"prerelease","version":"release-75-rc"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-74-2","date":"2023-12-11T19:06:58Z","type":"stable","version":"release-74-2"},{"url":"https://github.com/unicode-org/icu/releases/tag/release-74-1","date":"2023-10-27T23:28:23Z","type":"stable","version":"release-74-1"}]` |
| security.scorecard | 4.7 | 9 |
| security.vulnerabilities | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=i18next&per_page=100","last_12m":0,"max_severity":"MODERATE"}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=com.ibm.icu%3Aicu4j&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Localization I18N)

| Capability | i18next | ICU |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Cldr plural rules | ✓ | ✓ |
| Rtl bidi support | - | - |
| Translation memory | - | - |
| Glossary terminology | - | - |
| In context editing | - | - |
| Ota updates | - | - |
| Self hostable | ✓ | - |
| Managed translation services | ✓ | - |
| Qa checks | ✓ | - |

*Source: vioscaleAI. Generated 2026-10-16T19:04:50.541Z. "-" = undocumented, not absent.*