Locize vs. Tolgee:Managed vs. Self-Hosted

Tolgee is a modern, open-source alternative.
But choosing Tolgee often means choosing a new job: Infrastructure Management.
Locize is the Managed Evolution for teams that want to ship, not maintain.

The "Maintenance Tax"

Tolgee's self-hosted version is "free," but it comes with a hidden cost: your developers' time.

Tolgee

You manage the database & backups
You handle security patches & updates
You build your own global distribution

Locize

We handle the high-availability DB
Global Edge CDN included out of the box
Zero-DevOps: We scale, you code
Flexible pricing: usage-based or fixed plans available

CDN-First Architecture

Your users care about loading speed. Locize serves translations from a global edge CDN with versioned delivery, per-namespace endpoints, and stale-while-revalidate caching, so your translations load in milliseconds, worldwide.

Tolgee

Translations served from a single database
Publish-to-S3/Azure is an enterprise-only add-on
No built-in download analytics

Locize

Global edge CDN (BunnyCDN + CloudFront) on every plan
Versioned delivery: publish to "latest", "production", etc.
Download analytics: see which apps consume your translations
Automatic backups with one-click restore

The i18next Ecosystem

Locize is built by the creators of i18next, the industry standard with 40+ maintained packages, 9+ framework integrations (React, Next.js, Angular, Vue, Svelte, Solid, etc.), and a 10+ year ecosystem.

Tolgee

Proprietary SDKs for React, Vue, Angular, Svelte
An i18next bridge (@tolgee/i18next) for existing i18next users
No control over the i18next ecosystem roadmap

Locize

Native i18next support: we maintain the library
40+ packages: backends, plugins, post-processors, language detectors
Drop-in localization via locizify, no code changes needed
Lightweight CDN client (locizer) for any framework

i18n Format Awareness

Different i18n frameworks handle plurals, context, and nesting differently. Locize's CAT editor natively understands these rules. It doesn't just store your translations, it knows how your framework interprets them.

Tolgee

Import/export in many file formats
Editor treats translations as raw text

Locize

multiple i18n framework formats understood natively in the editor: i18next v3/v4, Vue i18n, ICU MessageFormat, Fluent, Polyglot, i18n-js, Android, and more
Framework-aware plural editing, context handling, and nesting
various file formats for import/export (JSON, XLIFF, YAML, Android, iOS, RESX, Gettext, etc.)

AI Translation Infrastructure

Both platforms offer AI-powered translation. The difference: Locize injects your styleguide, glossary, and translation memory into every AI prompt automatically, so AI translations match your brand voice.

Tolgee

5 LLM providers (enterprise-only, centrally managed)
6 built-in MT providers
AI playground to test prompts (enterprise-only)
No styleguide-aware AI

Locize

5 AI providers: Locize AI, OpenAI, Gemini, Mistral, Lara (BYOK, you control the key)
5 MT providers: Locize MT, DeepL, Google Translate, MyMemory, Lara
Styleguide-aware AI: tone, formality, and terminology rules injected into every AI prompt
AI assistant in the CAT editor for rephrasing, shortening, and generating variants

AI Agent Integration (MCP)

Both platforms offer MCP servers for AI coding assistants. Locize's is more comprehensive.

Tolgee

11 MCP tools (keys, translations, languages, branches)
Built into the self-hosted server

Locize

22 MCP tools covering the full workflow: translations, versions, branches, tenants, languages, namespaces, publish, and more
Works with Claude, Cursor, VS Code, and any MCP client
MCP setup guide →

Professional Translation Services

When you need human translators, Locize lets you order directly from the editor: no emails, no spreadsheets.

Tolgee

Generic "order translation" feature (enterprise-only)
Single agency integration

Locize

4 integrated translation services: BLEND, TextMaster, Supertext, Translated.com
In-app ordering with pricing quotes, fuzzy match exclusion, and order tracking

Multi-Tenancy

Building a white-label product? Locize lets you create tenant projects that inherit translations from a parent, with per-tenant overrides.

Tolgee

No multi-tenancy support

Locize

Up to 500 tenant projects per parent
Per-tenant translation overrides
CDN delivery per tenant
Learn more about multi-tenancy →

Versioning & Branching

Both platforms offer branching. Locize additionally offers explicit version management that maps to your software releases.

Tolgee

Git-like branching with merge and conflict resolution (enterprise-only)
No separate version concept

Locize

Branches for parallel translation workflows
Explicit versions (v1.0, v2.0) with publish, copy, and CDN delivery per version
Ship translations with your release cycles

Enterprise Security

Tolgee

TOTP-based two-factor authentication
SSO/SAML (enterprise-only)
Role-based access control

Locize

Three MFA methods: TOTP, WebAuthn (FIDO2 hardware keys), and YubiKey
SSO via SAML 2.0 with multi-provider support
Role-based permissions per project, version, language, and namespace
Audit trail of all actions
Security details →

Analytics & Monitoring

Tolgee

Translation progress dashboard
Activity log

Locize

Health metrics with trend charts: translation completeness, new keys, fuzzy entries over time
Developer metrics: API calls, downloads by referrer, error rates
Cost forecasting and billed usage breakdown
Budget alerts when usage approaches limits
Unused key detection via locize-lastused: find and remove translations nobody sees

Tolgee Migration Guide Start Free Trial

Frequently asked questions

What is the difference between Locize and Tolgee?

Both are translation management systems built for developers, but they differ in delivery model. Tolgee is open-source and primarily self-hosted: you run the database, handle updates, and build your own global delivery. Locize is a managed cloud service: hosted database, global edge CDN, automatic scaling. Tolgee offers a hosted tier; Locize offers a self-hosted option only for enterprise. Both integrate with i18next; Locize is built by the i18next team.

Is Tolgee free?

Tolgee's self-hosted open-source version is free in terms of license, but carries operational costs: server infrastructure, database, security patches, scaling, and developer time to maintain. Tolgee also offers a hosted cloud plan with a free tier for small projects and paid plans above. For nominal-zero-cost, self-host; for zero ops, use a hosted service.

When should I choose Locize over Tolgee?

Choose Locize when you want zero infrastructure ops, native i18next integration (Locize was built by the i18next team), CDN-backed runtime delivery for global users, AI translation with glossary and TM context, and a managed support contract. Best fit for product teams shipping multilingual SaaS who would rather not run their own localization stack.

When should I choose Tolgee over Locize?

Choose Tolgee when you have strict data-sovereignty requirements (must self-host), an existing DevOps team comfortable running open-source services, or a strong preference for open-source software. Tolgee's in-context editing and ICU support are also strong selling points. For very small projects, both have free tiers, so try each.

Can I migrate from Tolgee to Locize?

Yes. Both systems support standard formats (JSON, XLIFF) for import/export. The Locize CLI and Import API can ingest translations exported from Tolgee. If you use i18next, the integration is typically a one-plugin swap: replace your Tolgee backend plugin with i18next-locize-backend.