What is Image to Text (OCR)?
This image-to-text tool uses optical character recognition (OCR) to read the words embedded in photos, screenshots, captures, and scans, turning them into text you can copy and edit. Instead of retyping what you see, you can quickly pull the sentences you need from book pages, lecture slides, receipts, business cards, and web captures.
Its biggest advantage is that everything happens inside your own browser. Unlike Naver Clova, Google Cloud Vision, and most online OCR sites that upload your image to a server or require sign-up and credits, this tool runs 100% on the client with the tesseract.js engine, so your images and extracted results never leave your device. With no sign-up and no install, you can confidently extract Korean and English text even from documents that contain personal information.
Key Features
Korean & English Recognition
Switch between Korean, English, and combined KO+EN recognition with a single toggle. Mixed-language documents are read accurately.
Drag, Paste & Batch
Drag & drop files, paste screenshots with Ctrl+V, and upload multiple images at once to recognize them sequentially as a batch.
Progress Bar + Editable Result
A live progress bar shows recognition status, and the extracted text appears in an editable box you can fix on the spot.
Preprocessing for Accuracy
Grayscale and contrast preprocessing helps capture text from blurry photos and low-quality scans more reliably.
How to Use
- Upload an image — Drag & drop or use the choose button. Screenshots can be pasted straight from the clipboard with Ctrl+V.
- Choose the language — Pick Korean / English / KO+EN to match the text in your image.
- Set preprocessing (optional) — For blurry or low-quality images, enable grayscale & contrast to boost accuracy.
- Run extraction — Click Extract to recognize with a progress bar; multiple images are processed in a batch.
- Edit, copy, download — Fix the result inline, then copy it with one click or save it as a .txt file.
When It's Useful
Digitize Book & Document Photos
Extract body text from photos of book pages or printouts and paste it straight into notes, assignments, or blog posts.
Copy Text from Screenshots
Recognize text inside captures of copy-protected web pages, images, or PDFs so you can reuse it freely.
Receipts, Cards & Signs
Pull amounts from receipts, contact details from business cards, and wording from signs into quick, searchable text.
Lecture & Seminar Notes
Extract key sentences from photos of slides or whiteboards and organize them into study notes.
Frequently Asked Questions
Are my images uploaded to a server?
No. All recognition runs entirely inside your browser. Neither the images nor the extracted text are ever sent to any server, so you can safely process private or confidential documents.
Does it recognize Korean text?
Yes. Korean recognition data (tesseract.js kor) is supported out of the box. Choose Korean, English, or Korean+English to match your image. For documents that mix Korean and English, the KO+EN mode is recommended.
How can I improve recognition accuracy?
Sharp, straight (non-skewed) images give the best results. For blurry or low-quality scans, turn on the 'Preprocess (B&W · contrast)' option. Capture small text at a larger size and prefer images with strong contrast between the text and the background.
Can I paste a screenshot directly?
Yes. After taking a screenshot, press Ctrl+V (Cmd+V on Mac) on this page and the clipboard image is added and recognized immediately — no need to save a file. Capture, paste, copy, done.
Can I process several images at once?
Yes. Upload multiple images and they are added to a list; click 'Extract All' to recognize them one after another. You can review each result individually or grab them all with 'Save all results to one file'.
Does it read handwriting, tables, or formulas?
It is optimized for printed (typed) text, so clean body text is the most accurate. Handwriting, complex tables, math formulas, and heavily stylized fonts may be less accurate — you can always fix the output in the editable result box.
Privacy Notice
This tool never sends your uploaded images or recognized text to any server. All OCR processing runs entirely in your browser's memory, and results are copied or downloaded locally on your device. When you close the page, the data disappears from memory — so you can safely use images that contain personal or confidential information.
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