Image to Text Converter — Free Online OCR Tool
Extract text from any image using Optical Character Recognition (OCR) powered by Tesseract.js — running entirely in your browser. Supports JPG, PNG, WebP, GIF, BMP, and TIFF images up to 10 MB. Paste screenshots directly from clipboard with Ctrl+V. Supports English, Vietnamese, French, German, Spanish, Chinese (Simplified), Japanese, and Korean. Confidence score shows how accurately text was recognized.
100% private. OCR runs locally using Tesseract.js. Your images are never uploaded to any server.
How to Extract Text from an Image Online Free
- 01
Upload or paste an image
Drop a JPG, PNG, or screenshot onto the zone, click to browse, or press Ctrl+V to paste from clipboard. Max 10 MB.
- 02
Select language and extract
Choose the language of the text in the image. Click "Extract Text" — the OCR engine processes the image locally in your browser.
- 03
Edit, copy, or download
Review the extracted text with its confidence score. Edit directly in the text area, then copy or download as .txt.
Frequently Asked Questions
What is OCR and how does it work?
OCR (Optical Character Recognition) is technology that converts images containing text into machine-readable text. This tool uses Tesseract.js — a JavaScript port of Google's open-source Tesseract OCR engine — running entirely in your browser. The engine analyzes pixel patterns in the image to identify characters and words, outputting editable text.
What image formats does the OCR tool support?
The tool accepts JPG, PNG, WebP, GIF, BMP, and TIFF images up to 10 MB. For best results, use high-contrast images with clearly printed text. Scanned documents, screenshots of text, and photos of printed pages work well. Photos of handwritten notes have lower accuracy.
Can I paste a screenshot directly?
Yes. Press Ctrl+V (or Cmd+V on Mac) anywhere on the page after copying a screenshot. The tool detects clipboard image data and loads it automatically. This is especially useful for extracting text from screenshots of apps, documents, or websites without needing to save a file first.
Why does the first OCR take longer?
Tesseract.js downloads the OCR engine (~5 MB) and language data (~5–20 MB depending on language) from a CDN on first use. After the initial download, the engine stays loaded in browser memory so subsequent extractions on the same page are much faster. Refreshing the page clears the cache.
What does the confidence score mean?
The confidence score (0–100%) is Tesseract's estimate of how accurately it recognized the text. Above 80% (green) means excellent — text was clear and well-recognized. 60–80% (yellow) means good — some characters may be incorrect. Below 60% (red) means low confidence — review the output carefully. Images with poor lighting, small font, or unusual typefaces score lower.