A solo-developed browser translation extension by Owen that gained over 1 million users on the Chrome Web Store through innovative features like bilingual side-by-side display, PDF translation, and video subtitle translation — becoming one of the world's most popular open-source translation extensions.
Chrome Web Store review policies can change at any time (Manifest V3 being a prime example). Your extension could be delisted due to a single policy update. Stay highly attentive to platform policy changes.
Your product experience depends on the API stability and pricing of DeepL/Google. If Google triples prices or tightens rate limits, your product takes a direct hit. A multi-engine strategy is the only defense.
Immersive Translate's free version is already 'good enough' — most users don't need to upgrade. For browser extension OPCs, clearly plan which features are worth charging for and which stay free forever for growth.
Supports regex and CSS selector-level custom rules, allowing users to precisely control which page areas need translation and which content stays original. Power users can create site-specific translation configurations for a fully personalized browsing experience.
Beyond the Chrome extension, also provides Firefox, Edge, Safari versions, as well as standalone desktop clients and iOS/Android mobile apps, ensuring a consistent translation experience across all devices and browsers.
| SSPAI: Immersive Translate — Making Foreign Language Web Reading as Natural as Your Native Tongue | Media | - |
| Chrome Web Store: Immersive Translate Extension Page | Social Media | - |
