Software Alternatives, Accelerators & Startups

Crowdin VS Syncthing

Compare Crowdin VS Syncthing and see what are their differences

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Crowdin logo Crowdin

Localize your product in a seamless way with Crowdin's translation management software

Syncthing logo Syncthing

Syncthing replaces proprietary sync and cloud services with something open, trustworthy and...
  • Crowdin Crowdin Profile View
    Crowdin Profile View //
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  • Crowdin Crowdin Project View
    Crowdin Project View //
    2026-02-11
  • Crowdin Crowdin Tasks View
    Crowdin Tasks View //
    2026-02-11
  • Crowdin Crowdin Reports Page
    Crowdin Reports Page //
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  • Crowdin Crowdin connector app view
    Crowdin connector app view //
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Crowdin is an AI-powered localization software for teams and businesses. Connect with your development, design, and marketing stack, manage all your multilingual content in one place.

Get quality translations for your app, website, game, supporting documentation, marketing materials and more. Invite your own translation team or work with professional translation agencies within Crowdin.

Key features include:

  • Translation Memory, In-Context Visual Editor, Machine Translations, Quality Assurance checks, Reports, and a Marketplace.

  • 700+ apps and integrations, including Git, marketing, support, and a lot of other tools you can find at https://store.crowdin.com.

  • AI-powered localization tools: QA, pre-translation automation, AI Context Harvester, Agentic AI, the platform also supports most of the popular AI providers like OpenAI, Anthropic and more.

  • Get translations from Crowdin language services, agencies from the marketplace, or your own translation team.

  • Content integrations with GitHub, GitLab, Bitbucket, and Azure Repos.

  • API, CLI, webhooks.

  • iOS and Android SDKs for over-the-air content delivery, real-time preview, and screenshots.

  • Integrations with design tools: Figma, Adobe XD, and Sketch plugins.

  • Integrations with CMS like Webflow, Storyblok, Bigcommerce, Shopify etc.

  • Integrations with marketing tools: Mailchimp, Contentful, SendGrid, Hubspot, Dropbox, and more.

  • Tasks and various collaboration tools.

For more information, visit https://crowdin.com.

For enterprise businesses, we have Crowdin for Enterprise: https://crowdin.com/enterprise.

Crowdin supports more than 100 file formats for mobile, software, documents, subtitles, graphics and assets: .xml, .strings, .json, .html, .xliff, .csv, .php, .resx, .yaml, .xml, .properties, .strings, and so on.

  • Syncthing Landing page
    Landing page //
    2022-04-18

Crowdin

$ Details
freemium $50 / Monthly (Pro)
Platforms
SaaS Cloud Web Browser
Release Date
2009 January
Startup details
Country
Estonia
City
Tallinn
Founder(s)
Serhiy Dmytryshyn
Employees
50 - 99

Syncthing

Pricing URL
-
$ Details
Platforms
-
Release Date
-
Startup details
Country
Germany

Crowdin features and specs

  • Source Files Management
    Support of all popular file formats, files prioritization, export options, file revisions with a rollback possibility.
  • Over-The-Air Content Delivery
    An API to distribute and deliver translated content to the end users. Can be used with Crowdin Android and iOS SDK
  • Sketch Plugin
    Automate translation of content on your pages and artboards into multiple languages. Quickly generate language-specific assets.
  • Jira Integration
    Keep track of issues in the source strings reported by users working on the project translation. Each new issue in Crowdin becomes a sub-task in Jira automatically.
  • Translation memory
    Translation Memory (TM) is the vault of previously translated content from a particular project.
  • Google Play Integration
    Crowdin’s integration with Google Play improves the process of your app’s data localization.
  • GitHub, Bitbucket and GitLab Integrations
    Keep files synchronized between your repository in version control system and project in Crowdin.

Syncthing features and specs

  • Open Source
    Syncthing is open-source software, making it free to use and allowing for community contributions. This fosters transparency and continuous improvement.
  • Privacy
    The software uses peer-to-peer communication, meaning your files are not stored on a third-party server, enhancing privacy and security.
  • Cross Platform
    Syncthing is available on multiple platforms, including Windows, Mac, Linux, and Android, ensuring broad compatibility.
  • Real-time Sync
    The software offers real-time synchronization, which ensures that changes are immediately propagated across all devices, minimizing data inconsistencies.
  • Version Control
    Syncthing provides file versioning features, which can help recover older versions of files in case of accidental deletion or changes.

Possible disadvantages of Syncthing

  • Complex Setup
    Initial configuration and setup might be complex for users who are not technically inclined, requiring a certain level of understanding of network concepts.
  • Resource Usage
    Real-time syncing and continuous operation can consume significant system resources, affecting performance, especially on less powerful devices.
  • No Native Mobile Experience
    While Syncthing is available on Android, there is no official iOS app, which limits its usability for users on Apple's mobile platform.
  • Network Dependency
    Effective synchronization depends on the availability of a reliable network connection, which can be a limitation in areas with poor connectivity.
  • Self-Management
    Unlike cloud-based solutions, Syncthing requires users to handle their own backups, security, and maintenance, which can be time-consuming and complex.

Analysis of Crowdin

Overall verdict

  • Crowdin is generally regarded as a good tool for localization management, particularly for businesses seeking to efficiently manage multilingual projects. The combination of robust features, ease of use, and integration options makes it a popular choice among developers and managers.

Why this product is good

  • Crowdin is considered a reliable platform for localization management due to its user-friendly interface and comprehensive features. It supports a wide range of file formats, offers real-time collaboration, and integrates with various tools and platforms. Its automated workflows and machine translation capabilities facilitate efficient translation processes. The platform is designed to streamline project management, making it easier for teams of all sizes to manage their localization needs.

Recommended for

    Crowdin is recommended for software developers, project managers, and localization teams working on apps, websites, or any digital product that demands efficient and effective translation management. It is also suitable for companies looking to expand their products' reach into international markets.

Crowdin videos

Unlock New Features of Crowdin AI

More videos:

  • Demo - What's Crowdin?
  • Demo - Crowdin Apps & Integrations: a single tool to localize all your content
  • Tutorial - How To Manage Translations For Your Application | Crowdin & GitHub Tutorial

Syncthing videos

Why We Use Syncthing, The Open Source Private File Syncing Tool instead of NextCloud

More videos:

  • Review - Setup and Review of SyncThing, The Open Source File synchronization tool
  • Review - Syncthing for Syncing Both Computers & Phones

Category Popularity

0-100% (relative to Crowdin and Syncthing)
Localization
100 100%
0% 0
Cloud Storage
0 0%
100% 100
App Localization
100 100%
0% 0
File Sharing
0 0%
100% 100

Questions & Answers

As answered by people managing Crowdin and Syncthing.

What makes your product unique?

Crowdin's answer

Crowdin uniquely combines agile continuous localization with a highly customizable, enterprise-grade AI infrastructure. You can connect translation projects with over 700 apps and integrations. Crowdin offers exclusive capabilities like an AI Context Harvester, BYO key for any LLM connection, 40+ MT engines availability, custom workflows, Over-The-Air (OTA) deployment for mobile apps, and enterprise-grade security to protect your data.

Why should a person choose your product over its competitors?

Crowdin's answer

Enterprises choose Crowdin for its unmatched customizability and strict security compliance (ISO/IEC 27001). It completely automates complex localization pipelines using powerful developer tools (Git syncing, APIs, Over-The-Air updates), while guaranteeing accuracy by giving both AI and human linguists perfect visual context through auto-tagged screenshots and in-context editors.

What's the story behind your product?

Crowdin's answer

The company was founded in 2008 by Ukrainian programmer Serhiy Dmytryshyn as a hobby project for localization of small projects. The platform was officially launched in January 2009. Since then, it has been adopted among software and game development companies for software translation. The launch of Crowdin Enterprise came in 2020. In early 2020s, Crowdin began incorporating AI and large language model (LLM) capabilities into its platform. By 2025, over 3 million registered users across 160 countries had signed up on the platform.

Who are some of the biggest customers of your product?

Crowdin's answer

  • Intel
  • Xiaomi
  • OnePlus
  • GitHub
  • GitLab
  • Raspberry Pi
  • TYPO3
  • Joomla
  • Magento
  • PrestaShop
  • Calendly
  • Wrike
  • Pipedrive
  • Strava
  • Preply
  • JetBrains
  • Kickstarter
  • Khan Academy
  • Code.org
  • Meeds
  • Mojang
  • Wildlife Studios
  • Coffee Stain

How would you describe the primary audience of your product?

Crowdin's answer

Crowdin’s primary audience is large global enterprises, fast-scaling tech companies, and agile development teams. Specifically software, app, and game studios. Those teams that require highly secure, continuous localization deeply integrated into their CI/CD pipelines at scale.

User comments

Share your experience with using Crowdin and Syncthing. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Crowdin and Syncthing

Crowdin Reviews

Crowdin vs. Lokalise:True Lokalise Alternative
Frequently Asked Questions Who should use Crowdin? What is Crowdin used for? Crowdin is a cloud-based localization platform that automates translation for software, websites, apps, and content. It supports 100+ file formats, integrates with 700+ tools, and offers AI-powered translations, real-time collaboration, and translation memory to ensure accuracy. Used by translators,...
Source: crowdin.com

Syncthing Reviews

15 Best Rclone Alternatives 2022
With this tool, you can synchronize files between multiple computers without hassles. Syncthing is not very different from rclone as it also supports command-line functionality. Also, it’s a free and open source application with all source code available on GitHub.

Social recommendations and mentions

Based on our record, Syncthing seems to be a lot more popular than Crowdin. While we know about 852 links to Syncthing, we've tracked only 22 mentions of Crowdin. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Crowdin mentions (22)

  • Tools to Automate GitHub Projects
    Crowdin simplifies translation management by syncing translations from GitHub to its dashboard. Translators can contribute without interacting with GitHub directly. Learn more about Crowdin here. - Source: dev.to / over 1 year ago
  • What is Website Localization?
    There are many products out there such as Lokalize, Crowdin, Weglot, Adobe Target, etc can be used to achieve these experiences. Diving into the details and the general working of these products is out of scope of this blog post. But do give these products a try. - Source: dev.to / almost 2 years ago
  • How to Translate Your Next.js App in 5 Minutes With Crowdin
    We decided to see if there are any solutions to this issue on the market, did a bit of research, and decided to try out Crowdin - and we think it’s awesome! It offers:. - Source: dev.to / about 2 years ago
  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    Crowdin.com — Unlimited projects, unlimited strings, and collaborators for Open Source. - Source: dev.to / over 2 years ago
  • Coding for UX writers
    We're using Crowdin for this, since we need to localise with external partners to different languages: https://crowdin.com/. But there are other options on the market that are geared more towards providing a true source of text, like Frontitude or Ditto: Https://www.frontitude.com/ Https://www.dittowords.com/. Source: over 2 years ago
View more

Syncthing mentions (852)

  • KeepassDX – open-source Password Manager for Android
    Syncing the database between devices with Syncthing (https://syncthing.net/) is pretty neat too! - Source: Hacker News / 10 days ago
  • Syncthing File Sync for Self-Hosted Knowledge Systems
    Unlike cloud storage platforms, Syncthing uses a peer-to-peer model where each device holds its own copy of synced folders and exchanges changes directly with trusted peers. There is no central server that owns your data, no subscription account, and no vendor lock-in. The project is open-source and community-driven, with more details at syncthing.net. - Source: dev.to / about 2 months ago
  • The Quiet Renovation at Bitwarden
    Been using this setup for many years and never had any problem at all. I sync between desktop and mobile with Syncthing[0]. And also you can configure Syncthing to do file versioning, and it has many options (Trash Can, Simple, Staggered or External file versioning) so if some weird conflict happens you'll never lose data. But honestly, I have never had any issues, and I have been running this setup for many... - Source: Hacker News / 4 months ago
  • Show HN: Stop paying for Dropbox/Google Drive, use your own S3 bucket instead
    Https://syncthing.net/ <- like this :) Free, opensource, works on computers and phones, can in most cases puncture nat, supports local discovery (lan, multicast). No googles, no dropboxes, no clouds, no AI training, no "my kid likes the wrong video on youtube, now our whole family lost access to every google account we had, so we lost everything, including family photos", just sync! (not affiliated, just really... - Source: Hacker News / 5 months ago
  • Seafile vs Syncthing: Server vs Peer-to-Peer
    Syncthing is a decentralized, peer-to-peer file sync tool. Devices connect directly to each other — no central server. It does one thing: keep folders in sync across devices. It does this exceptionally well, with block-level delta sync and strong encryption. - Source: dev.to / 6 months ago
View more

What are some alternatives?

When comparing Crowdin and Syncthing, you can also consider the following products

Transifex - Transifex makes it easy to collect, translate and deliver digital content, web and mobile apps in multiple languages. Localization for agile teams.

Dropbox - Online Sync and File Sharing

Lokalise - Localization tool for software developers. Web-based collaborative multi-platform editor, API/CLI, numerous plugins, iOS and Android SDK.

Nextcloud - With Nextcloud enterprises host their own secure cloud solution for storage, collaboration & communication from any device, anywhere.

POEditor - The translation and localization management platform that's easy to use *and* affordable!

FreeFileSync - FreeFileSync is a free open source data backup software that helps you synchronize files and folders on Windows, Linux and macOS.