Extract Vietnamese Text from Images Online (Client-Side OCR)
Extract Vietnamese text from images, scanned documents, and receipts with full support for tone marks and complex diacritics (ă, â, đ, ê, ô, ơ, ư). Powered by Tesseract.js WebAssembly (WASM) and the official Vietnamese language dictionary (`vie`), recognition executes 100% locally on your machine with zero server roundtrips and absolute data privacy.
Key Technical Capabilities
- Accurate Vietnamese DiacriticsTrained on the official Tesseract Vietnamese neural model, accurately recognizing all vowel accents and tone marks.
- Zero-Server Privacy GuaranteeImage processing and neural inference run entirely in local browser memory via WebAssembly. Confidential documents never leave your device.
- Intelligent Preprocessing FiltersIncludes 2x Super-Resolution upscaling, auto-contrast, and binarization filters to maximize character extraction accuracy.
- Instant Clipboard Workflow (Ctrl+V)Paste screenshots directly from clipboard, inspect live progress percentage, and export to .txt or copy with one click.
How to Extract Vietnamese Text from Images
Follow these quick steps to convert images with Vietnamese text into editable plain text:
- Upload or Paste ImageDrag and drop your image file (PNG, JPG, WebP) or press Ctrl+V to paste a screenshot directly.
- Confirm Vietnamese LanguageThe tool defaults to Vietnamese (vie). You can also choose Vietnamese + English (vie+eng) for mixed bilingual documents.
- Click Extract Text (OCR)Click the Extract Text button. Extracted text will appear instantly in the right editor ready to copy or download.
Frequently Asked Questions
- Are my private documents or invoices uploaded to any server?
- No. EasyDev runs 100% client-side via WebAssembly in your browser. No files or text are ever transmitted over the network.
- Does this OCR tool accurately distinguish Vietnamese tone marks?
- Yes! The official Tesseract Vietnamese trained model accurately handles complex diacritics like sắc, huyền, hỏi, ngã, and nặng.
- Can I extract text from bilingual Vietnamese-English documents?
- Yes. Select the "Vietnamese + English (Bilingual)" option in the language dropdown to recognize both character sets simultaneously.
- Is there any limit on document conversions?
- No limits. You can process unlimited images free of charge with zero account creation or subscriptions.