Belin Doc

Hello everyone, I'm very happy to introduce my new product, Belin Doc, here. This might be the world's first truly free, unlimited, no-registration-login AI document translator. Website: https://belindoc.com Why Develop BelinDoc? Most AI document translation tools on the market either charge by page/word count, which can be expensive, or impose strict file size or other limitations on their free versions. Some tools also support only a limited range of document formats. However, for most people, the need for document translation is relatively infrequent. Therefore, we wanted to create a tool that everyone can use anytime—zero barriers, high quality, and privacy-focused—so that anyone can easily overcome language barriers. Why the Name Belin Doc? The most important reason is a "play on words," drawing from the phrase "as close as next-door neighbors" . Key Features Completely Free: No payment required, with a file size limit of 100MB. Supports All Types of PDFs: No payment required, with a file size limit of 100MB. Zero Barriers: No registration or login needed—just open the webpage, upload your file, and start using it. High-Quality Translation: Powered by the latest large language models, ensuring reliable translation quality. Privacy Protection: We do not store any of your documents. All uploaded files and translation results are permanently deleted from our servers within 24 hours! Supports Multiple Formats: Perfectly handles common document formats like PDF, DOCX, PPTX, TXT, and EPUB. Preserves Original Formatting: Our in-house layout engine retains the original document’s headings, lists, fonts, image positions, and other formatting as much as possible. Multilingual Support: Enables mutual translation between over 50 major languages, including Chinese, English, Japanese, and Spanish. No Restrictions: First, there are no usage limits—use it as much as you want. Second, we do not impose unnecessary content censorship. Technical Highlights Belin Doc employs GPT and Gemini as its core translation engines. Instead of simply calling APIs, we developed our own document parsing and formatting restoration engine. It accurately extracts text, translates it, and then intelligently reinserts the content back into the original layout. This is the key to "preserving formatting," ensuring convenience from start to finish.