Image to Text Converter (OCR)

Video Guide: Image to Text Converter (OCR)

Video guide with full transcript

About Image to Text Converter (OCR)

Extract text from clear, simple screenshots in your browser. Best for typed text with a plain background. Your images stay on your device. Review the text for errors.

What is OCR (Optical Character Recognition)?

Optical Character Recognition (OCR) is a technology that converts different types of documents — scanned paper documents, PDF files, or images captured by a digital camera — into editable and searchable text. OCR technology analyzes the shapes of characters in an image and matches them against known patterns to identify letters, numbers, and symbols.

Key Features

• 100% Browser-Based Processing: All OCR processing happens locally in your browser using Tesseract.js. Your images are never uploaded to any server, ensuring complete privacy.
• 100+ Languages Supported: Extract text in English, Chinese, Japanese, Korean, Spanish, French, German, Arabic, Hindi, and many more languages.
• Multiple Upload Methods: Drag and drop images, click to browse, or paste directly from your clipboard (Ctrl+V / Cmd+V).
• Image Preprocessing: Adjust brightness and contrast to improve recognition accuracy for low-quality or faded images.
• Confidence Score: See how confident the OCR engine is about the extracted text, helping you identify areas that may need manual review.
• Copy and Download: One-click copy to clipboard or download extracted text as a file.

How to Use This OCR Tool

1. Upload your image: Drag and drop an image onto the upload area, click to browse files, or paste an image from your clipboard using Ctrl+V (Cmd+V on Mac).
2. Select the language: Choose the language of the text in your image from the dropdown menu. Selecting the correct language significantly improves recognition accuracy.
3. Adjust image settings (optional): Click "Image Preprocessing" to access brightness and contrast controls. This is especially useful for low-quality, faded, or poorly lit images.
4. Click Extract Text: Press the "Extract Text" button to start the OCR process. You will see a progress bar indicating the processing status.
5. Review and use the results: The extracted text appears in an editable text area. You can edit it directly, copy to clipboard, or download as a text file.

Tips for Better OCR Results

Image Quality

Higher resolution images produce better results. Aim for at least 300 DPI when scanning documents. Avoid blurry, skewed, or heavily compressed images.

Contrast and Lighting

Good contrast between text and background is essential. Use the built-in preprocessing controls to enhance faded or low-contrast images. Dark text on a white background works best.

Language Selection

Always select the correct language for the text in your image. For documents with multiple languages, choose the primary language. The OCR engine uses language-specific models to improve accuracy.

Text Orientation

Ensure text in the image is relatively straight and not rotated. While the OCR engine can handle minor rotations, significant skewing will reduce accuracy.

Supported Image Formats

• PNG — Best for screenshots and text-heavy images (lossless compression)
• JPEG/JPG — Common photo format, good for scanned documents
• WebP — Modern format with good quality-to-size ratio
• BMP — Uncompressed bitmap images
• GIF — Supports simple images (first frame used for animated GIFs)
• TIFF — Professional scanning format (browser support varies)

Common Use Cases

Extracting Text from Screenshots

Quickly grab text from screenshots of websites, error messages, chat conversations, or social media posts. Simply paste the screenshot (Ctrl+V) and extract the text.

Privacy and Security

This OCR tool is designed with privacy as a top priority. All image processing happens entirely in your web browser using Tesseract.js, an open-source JavaScript OCR engine. Your images are never uploaded to any server. No data is stored, tracked, or shared. This makes it safe to use with sensitive documents, personal information, and confidential data.

About Tesseract.js

This tool uses Tesseract.js, an open-source OCR engine that runs in your browser. It is intended for basic text extraction from clear screenshots. Results vary with image quality, language and layout; recognition may miss or misread text.

Frequently Asked Questions

Is my image data safe when using this OCR tool?

Yes, absolutely. This OCR tool processes images entirely in your browser using Tesseract.js. Your images are never uploaded to any server. All text extraction happens locally on your device, ensuring complete privacy and data security.

What languages does this OCR tool support?

This tool supports over 100 languages including English, Chinese (Simplified and Traditional), Japanese, Korean, Spanish, French, German, Portuguese, Russian, Arabic, Hindi, Thai, Vietnamese, and many more. You can select the language before processing to improve accuracy.

What image formats are supported?

The tool supports all common image formats including PNG, JPEG, JPG, GIF, BMP, WebP, and TIFF. You can upload images by dragging and dropping, clicking the upload area, or pasting from your clipboard.

How can I improve OCR accuracy?

To improve OCR accuracy: use high-resolution images, ensure good contrast between text and background, select the correct language, use the built-in brightness and contrast controls to preprocess the image, and ensure the image is not rotated or skewed. Best for clear screenshots with simple, typed text. Handwriting, blurry photos, tables and complex layouts may produce poor results. Check the extracted text against the image.

Does this OCR tool work on mobile devices?

Yes, this OCR tool is fully responsive and works on mobile phones and tablets. You can take a photo directly with your camera and upload it, or paste screenshots. The interface adapts to smaller screens for a smooth mobile experience.

How long does OCR processing take?

Processing time depends on the image size, complexity, and your device's processing power. Most images are processed in 5-30 seconds. The first use may take slightly longer as the language model is downloaded and cached in your browser.

Can I use this tool offline?

After the first use, the language model is cached in your browser. However, the initial loading of Tesseract.js and language data requires an internet connection. Subsequent uses with the same language are faster due to caching.

Prefer One Click? Get the Chrome Extension

If you extract text from images often, our Copy Text from Image Chrome extension puts this tool one click away. Right-click any image on any website and choose "Copy text from this image" — the recognized text is copied to your clipboard after processing. Or press Alt+Shift+T and drag a box over any part of your screen: a video frame, a PDF page, text a website will not let you select. Recognition runs entirely on your device with the same privacy-first Tesseract engine as this page, and it works offline once installed. The core features are free every day; Pro is a single one-time payment — no subscription. Add it to Chrome for free, or learn more about the extension.

Additional Resources

• Optical Character Recognition - Wikipedia
• Tesseract.js - GitHub Repository
• Tesseract OCR Official Site

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