# FormatJS vs i18next

| Attribute | FormatJS | i18next |
|---|---|---|
| **vioscaleAI score** | 56.6 (22% (low)) | 56.8 (62% (medium)) |
| activity.commits_last_30d | 100 | 15 |
| adoption.dependent_repos | 57,947 | 49,895 |
| adoption.github_stars | 14,741 | 8,640 |
| 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}]` |
| deployment.options | - | `{"self_hosted":true}` |
| description.long | A monorepo hosting FormatJS libraries, with react-intl as a primary component. Provides tools for implementing internationalization and localization functionality in JavaScript applications. | An internationalization framework that provides core translation features including pluralization rules and contextual translations. Works independently or with optional management services for larger teams. |
| features.capabilities | - | `{"qa_checks":true,"self_hostable":true,"cldr_plural_rules":true,"managed_translation_services":true}` |
| integrations.count | - | 1 |
| integrations.list | - | `[{"name":"Locize"},{"name":"inlang Paraglide"}]` |
| language.primary | TypeScript | JavaScript |
| license.spdx | - | MIT |
| platform.support | `{"cli":true}` | `{"cli":true,"web":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"}` |
| pricing.free_tier | - | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | - | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 3 |
| release.history | `[{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_intl_v2.2.0","date":"2026-10-11T03:13:05Z","type":"stable","version":"formatjs_intl_v2.2.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_icu_messageformat_v0.3.0","date":"2026-10-11T03:13:04Z","type":"stable","version":"formatjs_icu_messageformat_v0.3.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_intl_v2.1.0","date":"2026-10-09T12:56:15Z","type":"stable","version":"formatjs_intl_v2.1.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_intl_macros_v1.1.0","date":"2026-10-09T12:56:14Z","type":"stable","version":"formatjs_intl_macros_v1.1.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_icu_messageformat_v0.2.0","date":"2026-10-09T12:56:12Z","type":"stable","version":"formatjs_icu_messageformat_v0.2.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_icu_messageformat_parser_v1.1.0","date":"2026-10-09T12:56:10Z","type":"stable","version":"formatjs_icu_messageformat_parser_v1.1.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_cli_v1.8.1","date":"2026-10-09T12:56:16Z","type":"stable","version":"formatjs_cli_v1.8.1"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli%406.16.34","date":"2026-10-09T12:56:09Z","type":"stable","version":"@formatjs/cli@6.16.34"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-win32-x64%401.1.29","date":"2026-10-09T12:56:08Z","type":"stable","version":"@formatjs/cli-native-win32-x64@1.1.29"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-x64%401.1.28","date":"2026-10-09T12:56:06Z","type":"stable","version":"@formatjs/cli-native-linux-x64@1.1.28"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-x64-musl%401.0.26","date":"2026-10-09T12:56:07Z","type":"stable","version":"@formatjs/cli-native-linux-x64-musl@1.0.26"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-arm64%401.2.28","date":"2026-10-09T12:56:03Z","type":"stable","version":"@formatjs/cli-native-linux-arm64@1.2.28"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-arm64-musl%401.0.26","date":"2026-10-09T12:56:04Z","type":"stable","version":"@formatjs/cli-native-linux-arm64-musl@1.0.26"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-darwin-arm64%401.1.28","date":"2026-10-09T12:56:02Z","type":"stable","version":"@formatjs/cli-native-darwin-arm64@1.1.28"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-lib%4010.0.10","date":"2026-10-09T12:56:01Z","type":"stable","version":"@formatjs/cli-lib@10.0.10"},{"url":"https://github.com/formatjs/formatjs/releases/tag/vue-intl%408.1.3","date":"2026-10-05T16:55:54Z","type":"stable","version":"vue-intl@8.1.3"},{"url":"https://github.com/formatjs/formatjs/releases/tag/react-intl%4012.1.4","date":"2026-10-05T16:55:49Z","type":"stable","version":"react-intl@12.1.4"},{"url":"https://github.com/formatjs/formatjs/releases/tag/intl-messageformat%4012.1.3","date":"2026-10-05T16:55:47Z","type":"stable","version":"intl-messageformat@12.1.3"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_cli_v1.8.0","date":"2026-10-05T16:55:55Z","type":"stable","version":"formatjs_cli_v1.8.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/eslint-plugin-formatjs%408.1.1","date":"2026-10-05T16:55:43Z","type":"stable","version":"eslint-plugin-formatjs@8.1.1"}]` | `[{"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"}]` |
| security.scorecard | 4.3 | 4.7 |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=react-intl&per_page=100","last_12m":0,"max_severity":null}` | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=i18next&per_page=100","last_12m":0,"max_severity":"MODERATE"}` |

## Capabilities (Localization I18N)

| Capability | FormatJS | i18next |
|---|:--:|:--:|
| **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 2026-10-16T19:21:55.320Z. "-" = undocumented, not absent.*