# FormatJS vs Project Fluent

| Attribute | FormatJS | Project Fluent |
|---|---|---|
| **Vioscale score** | 64.8 (10% (low)) | 43.8 (24% (low)) |
| activity.commits_last_30d | 100 | 0 |
| adoption.dependent_repos | 57,947 | 0 |
| adoption.github_stars | 14,743 | 1,674 |
| description.long | - | A localization system that enables translations to use the full range of grammatical features in their target language, including proper handling of plurals, gender, dates, times, numbers, and right-to-left text. |
| features.capabilities | - | `{"qa_checks":false,"ota_updates":false,"self_hostable":true,"rtl_bidi_support":true,"cldr_plural_rules":true,"in_context_editing":false,"translation_memory":true,"glossary_terminology":true,"managed_translation_services":false}` |
| language.primary | TypeScript | JavaScript |
| license.spdx | - | Apache-2.0 |
| platform.support | `{"cli":true}` | - |
| pricing | - | `{"type":"open_source","sourceUrl":"https://projectfluent.org","retrievedAt":"2026-08-21T13:20:47.821Z"}` |
| pricing.model | commercial | commercial |
| pricing.price_level | - | free |
| release.cadence_days | - | 59 |
| release.history | `[{"url":"https://github.com/formatjs/formatjs/releases/tag/react-intl%4010.1.23","date":"2026-08-23T03:06:40Z","type":"stable","version":"react-intl@10.1.23"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_cli_v1.4.2","date":"2026-08-23T03:06:41Z","type":"stable","version":"formatjs_cli_v1.4.2"},{"url":"https://github.com/formatjs/formatjs/releases/tag/eslint-plugin-formatjs%406.6.0","date":"2026-08-23T03:06:39Z","type":"stable","version":"eslint-plugin-formatjs@6.6.0"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli%406.16.20","date":"2026-08-23T03:06:38Z","type":"stable","version":"@formatjs/cli@6.16.20"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-win32-x64%401.1.15","date":"2026-08-23T03:06:37Z","type":"stable","version":"@formatjs/cli-native-win32-x64@1.1.15"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-x64%401.1.14","date":"2026-08-23T03:06:35Z","type":"stable","version":"@formatjs/cli-native-linux-x64@1.1.14"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-x64-musl%401.0.12","date":"2026-08-23T03:06:36Z","type":"stable","version":"@formatjs/cli-native-linux-x64-musl@1.0.12"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-arm64%401.2.14","date":"2026-08-23T03:06:33Z","type":"stable","version":"@formatjs/cli-native-linux-arm64@1.2.14"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-arm64-musl%401.0.12","date":"2026-08-23T03:06:34Z","type":"stable","version":"@formatjs/cli-native-linux-arm64-musl@1.0.12"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-darwin-arm64%401.1.14","date":"2026-08-23T03:06:32Z","type":"stable","version":"@formatjs/cli-native-darwin-arm64@1.1.14"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-lib%409.0.6","date":"2026-08-23T03:06:30Z","type":"stable","version":"@formatjs/cli-lib@9.0.6"},{"url":"https://github.com/formatjs/formatjs/releases/tag/formatjs_cli_v1.4.1","date":"2026-08-18T14:14:54Z","type":"stable","version":"formatjs_cli_v1.4.1"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli%406.16.19","date":"2026-08-18T14:14:53Z","type":"stable","version":"@formatjs/cli@6.16.19"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-win32-x64%401.1.14","date":"2026-08-18T14:14:52Z","type":"stable","version":"@formatjs/cli-native-win32-x64@1.1.14"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-x64%401.1.13","date":"2026-08-18T14:14:49Z","type":"stable","version":"@formatjs/cli-native-linux-x64@1.1.13"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-x64-musl%401.0.11","date":"2026-08-18T14:14:50Z","type":"stable","version":"@formatjs/cli-native-linux-x64-musl@1.0.11"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-arm64%401.2.13","date":"2026-08-18T14:14:47Z","type":"stable","version":"@formatjs/cli-native-linux-arm64@1.2.13"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-linux-arm64-musl%401.0.11","date":"2026-08-18T14:14:48Z","type":"stable","version":"@formatjs/cli-native-linux-arm64-musl@1.0.11"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-native-darwin-arm64%401.1.13","date":"2026-08-18T14:14:46Z","type":"stable","version":"@formatjs/cli-native-darwin-arm64@1.1.13"},{"url":"https://github.com/formatjs/formatjs/releases/tag/%40formatjs/cli-lib%409.0.5","date":"2026-08-18T14:14:45Z","type":"stable","version":"@formatjs/cli-lib@9.0.5"}]` | `[{"url":"https://github.com/projectfluent/fluent/releases/tag/v1.0.0","date":"2019-04-17T07:18:15Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.9.0","date":"2019-03-26T12:55:42Z","type":"prerelease","version":"v0.9.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.8.0","date":"2018-12-13T14:50:15Z","type":"prerelease","version":"v0.8.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.7.0","date":"2018-10-15T14:32:25Z","type":"prerelease","version":"v0.7.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.6.0","date":"2018-07-24T15:30:56Z","type":"prerelease","version":"v0.6.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.5.0","date":"2018-01-31T18:46:29Z","type":"prerelease","version":"v0.5.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.4.0","date":"2017-11-14T13:06:28Z","type":"prerelease","version":"v0.4.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.3.0","date":"2017-10-18T10:17:03Z","type":"prerelease","version":"v0.3.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.2.0","date":"2017-10-18T10:16:33Z","type":"prerelease","version":"v0.2.0"},{"url":"https://github.com/projectfluent/fluent/releases/tag/v0.1.0","date":"2017-10-18T10:15:50Z","type":"prerelease","version":"v0.1.0"}]` |
| security.scorecard | 3.8 | 3.7 |
| 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":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fprojectfluent%2Ffluent&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Localization I18N)

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

*Source: Vioscale. Generated 2026-09-01T17:03:22.940Z. "-" = undocumented, not absent.*