Overview

Crowdin is a localization platform for translating software, apps, websites, games, marketing content, and documentation. It is strongest for teams coordinating translators with product and development work, rather than people who need only a standalone text translator. Its breadth of workflow tools is compelling, but hosted-word limits and plan terms deserve close attention.

Key features

An online editor, Translation Memory, glossaries, collaborative editing, and context-aware translation features support recurring work: teams can reuse prior translations and keep terminology consistent. Built-in QA checks, string-level checks, progress dashboards, cost tracking, productivity metrics, and customizable reports give coordinators ways to review quality and monitor progress.

For software teams, Git integrations, branch-based translation management, in-context UI previews, and support for over 100 file formats connect localization to development workflows. Crowdin offers more than 700 integrations, including GitHub, Figma, WordPress, and Notion. Its API, CDN, SDKs, and webhooks support automation and content synchronization. Android and iOS SDKs add over-the-air content delivery, real-time translation previews, and screenshot upload and tagging, useful for teams managing mobile releases.

Translation drafts can draw on Translation Memory, machine-translation engines such as DeepL and Google Translate, and AI providers including OpenAI, Anthropic, and Azure AI. That gives teams several ways to generate starting points, while QA and review tools remain important for checking the result.

Crowdin states that it is GDPR compliant and ISO/IEC 27001 certified. Security controls include two-factor authentication, SAML 2.0 single sign-on, role-based permissions, granular API tokens, backups and versioning, password complexity enforcement, and device verification. It uses AWS data centers and geographical restrictions to limit processing to specific countries. Customers handling PHI must sign its Business Associate Agreement.

Pricing

Crowdin uses a freemium model. That makes it a no-cost starting point, but readers should not assume it covers a particular project size. Crowdin for Open Source is a 0.00 USD per free option available by request for non-profit open-source projects. Granted academic licenses include unlimited projects, strings, and members, a substantial fit for qualifying academic work.

Creating a first localization project starts a 14-day Team plan trial at 0.00 USD per free, with Team features during the trial. Crowdin Enterprise has a 30-day trial at 0.00 USD per free, including Business plan features. Both are useful for evaluating a workflow, but the trial periods are finite.

Crowdin Enterprise has custom pricing and annual billing only. It includes unlimited content, customizable workflows, and enterprise controls for organizations coordinating localization across multiple products. Paid subscriptions allow unlimited translators and proofreaders, but hosted-word limits still apply across the account or organization, with the allowance depending on the plan. That shared quota can matter more than seat count for organizations running many projects; check the plan allowance before committing.

Platforms

Crowdin supports Android, iOS, Linux, macOS, Windows, and web, as well as API access. It also supports document and website translation.

Who it's for

The standard product is aimed at individuals and small in-house teams that need translation memory, collaboration, and links to development tools. Crowdin Enterprise is the better fit for private organizations coordinating localization across multiple products, particularly when custom workflows and organization-wide user and group management matter. Crowdin also advertises 24/7 priority support, a dedicated success manager, custom training and setup, and Slack support.

Pros and cons

Pro: Translation, QA, collaboration, and developer integrations share one platform, making it a strong fit for product teams with ongoing software localization.
Pro: Android and iOS SDKs support over-the-air delivery and preview workflows, which suit teams updating mobile content between releases.
Pro: Unlimited translators and proofreaders on paid subscriptions avoid per-translator seat constraints.
Con: Hosted-word limits are shared across an account or organization, so multiple projects draw on the same plan allowance.

Alternatives

For narrower translation needs, Mate Translate offers a freemium option across web, desktop, and mobile platforms. PROMT may suit readers seeking paid language-pair or multilingual options, with PROMT Lite One Language Pair at 39.00 USD per month and PROMT Lite Multilingual at 59.00 USD per month. Lara Translate offers a free plan with 60,000 characters per month, one user, and document-size limits, which may better suit a small, bounded workload.

LingoHub has a Starter plan at 45.00 EUR per month with 100k linguistic credits (about 15k words) and unlimited seats, an alternative for teams comparing a published paid entry point. Localizely provides a free plan with 250 hosted string keys, one project, unlimited users, and unlimited languages for a smaller project. Papago, locize, and OneSky are other options to compare.

Browse Translation Software, Game Localization Software, Translation Management Software, or Website Translation Software for category alternatives.

Verdict

Crowdin is a strong choice for product teams that need translation work tied to development, mobile delivery, and ongoing quality oversight. Its integration breadth and workflow controls are the main reasons to choose it; look elsewhere if you need a simple text translator or a clearly published plan allowance and price before evaluating.

	Crowdin	OPUS-MT
Free plan	Yes	No
Free trial	Yes	No
Paid from	Free	—
Open source	No	No
Platforms	Android, api, iOS, Linux, macOS, Web, Windows	api, Linux, self-hosted, Web
Free plan	Yes	—
Document translation	Yes	—
Website translation	Yes	—
Translation memory	Yes	—
Glossary tools	Yes	—
API access	Yes	Yes

Crowdin vs OPUS-MT

Crowdin

OPUS-MT