Celebrating life's big moments
in 5 languages with Un Grand Jour

About Un Grand Jour

Un Grand Jour is a platform designed to help people celebrate life's milestones. In just a few minutes, hosts can create a personalized event page, invite guests, track responses, and manage gift lists or cash funds — all in a friendly space that looks great on any device.

"We go beyond a simple gift registry: we wrap invitations, guest management, schedules, lodging tips, thank-you notes, and flexible gifting into a single, intuitive experience. The result is less admin for hosts, a smoother journey for guests, and more time for everyone to enjoy the occasion itself."
— Georges Vernier, Founder & CEO

This approach makes it easier for hosts to manage their events while providing guests with a clear and enjoyable experience.

The challenge: Translation without a proper tool

Un Grand Jour needed to offer its service in five languages: French, English, German, Spanish, and Italian. Before SimpleLocalize, managing translations was difficult.

We didn't had an online tool to edit production translations. It was hard to give access to translations keys to translators and track completion rate.

Without a translation management system, the team struggled with:

• Manual updates to translation files
• Difficulty in collaborating with translators
• Lack of visibility into translation progress
• Inconsistent translations across languages

These challenges made it hard to ensure a smooth user experience for their international audience.

How SimpleLocalize helped

SimpleLocalize provided the tools to simplify their translation process. The team uses a hosted translation file and webhook events to keep translations up to date.

With SimpleLocalize, Un Grand Jour can:

• Host translation files
  Thanks to SimpleLocalize's Translation Hosting, Un Grand Jour can easily manage and update their translation files without manual intervention. This ensures that the latest translations are always available to users.
• Collaborate with translators
  A TMS like SimpleLocalize allows Un Grand Jour to invite translators to work on their projects. This collaboration ensures that translations are accurate and culturally relevant.
• Track translation progress
  Thanks to dashboard and clear statistics, Un Grand Jour can monitor the status of translations in real-time. This visibility helps them stay on track and meet deadlines.
• Translate efficiently using AI
  Translating using machine and AI tools is a breeze with SimpleLocalize. Un Grand Jour can quickly generate initial translations, which can then be refined by human translators
• Ensure consistent translations
  One place to manage all translations means that Un Grand Jour can maintain consistency across languages. This is crucial for providing a seamless user experience, especially for an event planning platform where clarity is key.

What changed after switching to SimpleLocalize

By adopting SimpleLocalize, Un Grand Jour made it easier for translators to review and fix AI-generated translations.

I was able to onboard translators so that they could correct AI translations that was previously made.

The platform also allows uploading screenshots to provide context for translators, which makes their work clearer.

Using a tool like Simplelocalize that enable to upload screenshot of translation location can be very helpful for translators.

Tools, workflow & lessons learned

Un Grand Jour uses SimpleLocalize with the i18n library in their Ruby on Rails application. Translations are stored in a hosted file, and webhook events are used to automatically expire cached content when updates are made.

I use hosted file on SimpleLocalize and webhook events. I store translations in cache and expire the cache when we update the SimpleLocalize translations.

This setup keeps things fast and reliable for end users, while making it easier to maintain language files without touching code. But the team's approach goes beyond technical implementation, it's about aligning tools with the pace and nature of their content updates.

Translation management system are great when translations are changing often and you create new content regularly. It enable marketing team to edit translations without having developer go through code updates.

For Un Grand Jour, the value of a TMS like SimpleLocalize isn't just in managing frequent updates, it's in empowering non-developers to handle localization efficiently, without relying on engineering time. During quieter periods, when fewer updates are needed, SimpleLocalize's flexible pricing makes it easy to scale usage to fit their current needs, just like many teams do in localization or web development.

The core lesson? Build a translation workflow that's as adaptable as your content. That means clear key mapping, fast iteration, and tools that help translators work with confidence.

Language selector in action

Un Grand Jour's language selected, placed in the top right corner of their website and in the footer, allows users to easily switch between languages. This feature is crucial for providing a seamless experience for international users, ensuring they can navigate the platform in their preferred language.

It's a simple and clean design, beautifully integrated into the website's header, making it easy for users to find and use.

Takeaway

Un Grand Jour's experience shows how using the right tools can make translations easier, improve collaboration, and provide a better experience for users across languages.