Locize vs. Localazy:Ecosystem vs. Tool

Localazy is a capable generic TMS with a CDN layer. Locize is purpose-built infrastructure for the i18next ecosystem, not just a place to store translations, but the live runtime backend your app reads from.

Integration Depth: Adapter vs. Native Backend

Localazy connects to i18next through generic file sync. Locize is built by the i18next creators as the managed backend; the integration is fundamentally different.

Localazy

Generic TMS: Supports many frameworks via file sync; i18next is one of many.
No namespace concept: No built-in support for i18next namespaces, branching, or versioning.
No multi-tenant model: SaaS teams needing per-client overrides must use workarounds.
CDN billed separately: CDN usage is an add-on on top of the subscription cost.

Locize

Built by the i18next team: The dedicated i18next-locize-backend plugin is first-party.
Namespaces, branches, versions: All built-in and designed around i18next conventions.
Multi-tenant SaaS support: Per-tenant overrides served from the same CDN natively.
CDN included: Standard downloads included in every fixed plan; overage is just $5/1M requests.

Pricing: Source Keys vs. Total Words

Each platform prices differently. Neither model is universally better; it depends on your project shape.

Localazy

Source-key pricing: Language-agnostic, so adding more languages costs nothing extra.
Unlimited seats: All plans including free include unlimited contributors.
Lower entry price: For very small key counts the free and starter tiers can be cheaper.

Locize

Total-word pricing: Scales with languages × words; predictable but grows with locale count.
CDN included: No separate CDN billing; downloads are part of the fixed plan.
Usage-based option: Pay only for what you use starting at $5/month, ideal for variable workloads.
Review, glossary, etc. on lower tiers: No feature gating behind enterprise plans.

If your project has few source keys but many target languages, Localazy's model favors you. If you need CDN delivery, namespaces, branches, and deep i18next integration, Locize's total cost is typically lower once you factor in Localazy's CDN add-on and the integration work you skip.

Side-by-side

Feature	Localazy	Locize
Built by the i18next creators	✗	✓
Dedicated i18next backend plugin	✗	✓
saveMissing native (zero custom code)	✗	✓
CDN delivery included in plan	✗	✓
i18next namespace support	✗	✓
Git-style branches	✗	✓
Multi-tenant SaaS support	✗	✓
In-context editor	✓	✓
AI translation	✓	✓
Translation memory	✓	✓
Review workflow	✓	✓
Glossary	✓	✓
Source-key pricing (language-agnostic)	✓	✗
Public pricing	✓	✓
Free plan	✓	✓

Based on publicly available documentation as of March 2026. Features change, so verify before purchasing.

Consider Localazy if…

You have many target languages but few source keys and need language-agnostic pricing
Unlimited contributor seats is a hard requirement on the free tier
Your workflow is primarily file-based export/import and you do not need runtime CDN delivery included in the plan

Choose Locize if…

You are using i18next and want a native backend, not a generic adapter
You need CDN delivery included, with overage at $5/1M requests
Your app requires namespaces, branches, or versioning
You are building a SaaS product with per-tenant translation overrides
You want your TMS subscription to directly support i18next open-source development

AI Translation Infrastructure

Localazy offers machine translation. Locize adds a full AI layer: BYOK for OpenAI, Gemini, and Mistral, plus a built-in AI service. Your styleguide, glossary, and translation memory feed into every AI prompt for consistent, context-aware translations at scale.

The Locize MCP server connects AI coding assistants directly to your translation projects: an integrated ecosystem, not just a tool with a CDN bolted on. Why not just use AI? →

Localazy migration guide Start free trial

Frequently asked questions

What is the difference between Locize and Localazy?

Localazy is a capable generic TMS that connects to i18next through file sync and offers a CDN as a paid add-on. Locize is built by the i18next creators as the managed backend for it, with a first-party i18next-locize-backend plugin, native namespaces, git-style branches, versioning, and per-tenant overrides. CDN delivery is included in every Locize plan rather than billed separately.

Is Locize or Localazy cheaper?

It depends on the shape of your project, because the two price on different units. Localazy charges by source key, which is language-agnostic, so extra languages cost nothing more. Locize charges by total words, source words multiplied by target languages. If you have few source keys and many target languages, Localazy favours you. If you need CDN delivery, namespaces, and branches, Locize is typically lower once the CDN add-on and integration work are counted.

When should I choose Locize over Localazy?

Choose Locize when you are using i18next and want a native backend rather than a generic adapter, when you need CDN delivery included with overage at $5 per million requests, when your app requires namespaces, branches, or versioning, or when you are building a SaaS product needing per-tenant translation overrides. Your subscription also directly funds i18next open-source development.

When should I choose Localazy over Locize?

Localazy is the better choice if you have many target languages but few source keys, since its language-agnostic pricing favours that shape directly. It also fits if unlimited contributor seats on the free tier is a hard requirement, or if your workflow is primarily file-based export and import and you do not need runtime CDN delivery bundled into the plan.

Can I migrate from Localazy to Locize?

Yes. Both support standard formats such as JSON and XLIFF, and the Locize CLI and Import API can ingest files exported from Localazy. If you already use i18next, the runtime change is typically swapping your backend plugin for i18next-locize-backend. A step-by-step Localazy migration guide is in the docs.