What is Project Fluent?
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.
Project Fluent pricing
We don't have Project Fluent's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Project Fluent does
The capabilities that matter for localization i18n, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Cldr plural rules
- ✓
- Rtl bidi support
- ✓
- Translation memory
- ✓
- Glossary terminology
- ✓
- In context editing
- ✗
- Ota updates
- ✗
- Self hostable
- ✓
- Managed translation services
- ✗
- Qa checks
- ✗
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Project Fluent alternatives
Other localization i18n we track, ranked by the same independent score.
- CrowdinA cloud-based platform for managing translations and localization workflows across multiple languages and integrations.medium · 55%
- WeblateWeb interface for translating software projects with integrated version controllow · 25%
- LokaliseDeliver multilingual content with speed and quality using AI-powered collaborative translationmedium · 56%
- FormatJSlow · 10%
- ICUlow · 24%
- TransifexStreamline multi-language localization at scale using AI-powered workflows without increasing operational overheadmedium · 61%
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Project Fluent, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 75 | 0.08 | 6.3 | ✓ |
| Price level | 100 | 0.05 | 5.2 | ✓ |
| Release cadence | 67 | 0.05 | 3.5 | ✓ |
| Stars | 61 | 0.03 | 1.6 | ✓ |
| Security score | 37 | 0.04 | 1.6 | ✓ |
| Reliability | 0 | 0.07 | 0.0 | - |
| Integrations | 0 | 0.09 | 0.0 | - |
| Dependent projects | 0 | 0.06 | 0.0 | ✓ |
| Development activity | 0 | 0.09 | 0.0 | ✓ |
| Security posture | 0 | 0.07 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Pricing transparency | 0 | 0.08 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 0 | mediumsource · 2026-08-26 · 65% |
Adoption
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Self hostable, Rtl bidi support, Cldr plural rules, Translation memory, Glossary terminology | mediumsource · 2026-08-21 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | JavaScript | highsource · 2026-08-26 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-08-26 · 95% |