Yaply : traduire X - posts, réponses & DM, developed by Matthias Marchione, helps X users translate posts, replies and direct messages inside the Chrome browser without leaving the feed. The extension enables in-place translation and reply composition while aiming to keep conversational tone, slang and emojis intact. It targets international creators, traders and indie founders who need straightforward multilingual interaction directly on X's interface.

How broad is Yaply's in‑feed translation reach?

Yaply translates timeline posts, threaded conversations, search results and X Articles in real time as you scroll. Automatic language detection skips content already in your native language to avoid unnecessary translations. The developer emphasises preservation of tone, slang, irony and emojis so output reads like a natural reply rather than a literal rendering. This makes reading mixed‑language timelines less disruptive than copying text into an external translator.

Can you compose replies and handle DMs without external tools?

The extension provides native‑style composing so you can write in your language and translate before sending via a one‑click action or the Cmd+Shift+E shortcut. Bidirectional DM translation supports reading incoming messages in your language and replying in the recipient's language. That in‑place workflow reduces copy‑paste steps and keeps conversations within the same browser window, which suits users who post frequently from the feed.

What does Yaply say about message privacy?

The developer presents the extension as private by design, stating messages are never stored in databases, caches or logs. That assertion covers both timeline and DM translations and frames data handling as session‑bound rather than persistently archived. The privacy approach, as described by the developer, centers on avoiding retained conversation records rather than relying on external storage.

Which browsers does Yaply support and how is it maintained?

Yaply installs as a Chrome extension and supports other Chromium‑based browsers including Microsoft Edge, Brave and Opera, so it runs where Chromium extensions are accepted. The tool is maintained as an independent utility by the developer rather than as an official X Corp integration, which clarifies that updates and compatibility adjustments come from the extension author rather than the platform provider.

Good fit for active multilingual posters who accept a third‑party extension trade‑off

Given the developer's focus on productivity tools for social media, Yaply suits users who post and converse in multiple languages and who prefer translations embedded in the feed. The trade‑off is reliance on an independently maintained extension, so review browser extension permissions and use your browser's extension controls to limit access when you test the tool.