Accurate Image to Text Conversion
Extract text from images with high accuracy using the Umi-OCR recognition engine. Supports JPG, PNG, screenshots, and scanned documents — delivering clean, editable text output in seconds.
Free Online Umi OCR — Extract Text from Images Instantly
Umiocr is a free online OCR tool powered by the open source Umi-OCR engine. Extract text from images, screenshots, and documents in seconds — no downloads, no login, completely free.
Umiocr is a free online OCR tool that lets you extract text from images instantly — no software installation required. Simply upload a JPG, PNG, or scanned PDF and our tool will convert image to text in seconds using the powerful Umi-OCR recognition engine.
Whether you need to perform OCR from a screenshot, digitize a scanned receipt, extract text from a business card photo, or convert a PDF image to editable text — Umiocr handles it all, directly in your browser. Supports Chinese, English, Japanese, Korean, and more.
Image to TextPDF OCRScreenshot OCRChinese OCRFree & UnlimitedNo Login Required
Features
Everything an Online OCR Tool Needs
Powered by the battle-tested Umi-OCR engine, Umiocr brings professional OCR capability directly to your browser tab.
No Download or Install Needed
This free online OCR tool runs entirely in your web browser. No software installation, no app store, no plugin — just open Umiocr and start converting images to text immediately.
Multi-Language OCR Support
Recognize and extract text from images in Simplified Chinese, Traditional Chinese, English, Japanese, Korean, and many more languages. Especially optimized for bilingual Chinese–English documents.
Completely Free & Unlimited
Convert as many images to text as you need at zero cost. Umiocr requires no subscription, no API key, and no registration — free OCR for everyone, unlimited usage.
Privacy-First OCR Processing
Your documents stay private. Image-to-text processing runs securely without permanently storing your files on external servers. Safe for sensitive receipts, IDs, and confidential documents.
Works on Any Device
Use this online OCR tool on Windows, macOS, Linux, iOS, or Android — any device with a modern browser. Convert images to text from your phone, tablet, or desktop with equal ease.
About The Tool
What is Umiocr?
Umiocr is a free online OCR tool built on the open source Umi-OCR recognition engine. It brings powerful offline-grade text extraction to any device through a browser — perfect for students, researchers, developers, and anyone who regularly works with scanned text or image documents.
Umi-OCR is maintained by hiroi-sora on GitHub and has grown into one of the most popular open source OCR solutions for Chinese text recognition. Umiocr bridges that desktop power with the convenience of the web.
Built on Open Source
Whether you need to extract text from a scanned receipt, digitize a handwritten note, or convert a PDF image to editable text, Umiocr has you covered — all running in your browser.
- 100% Open Source Engine
- No Registration Required
- Supports Chinese, English & More
Guide
How to Extract Text from an Image Online
Follow this quick 4-step guide to convert any image to text using our free online OCR tool.
01
Launch the OCR Tool
Click the "Launch OCR Tool" button at the top of the page to load the free online OCR interface directly in your browser — no installation required.
02
Upload an Image or PDF
Drag and drop or select any image file (JPG, PNG, BMP, screenshot) or scanned PDF containing the text you want to extract.
03
Choose OCR Language
Select the recognition language that matches your document — Chinese, English, Japanese, Korean, and more are supported for accurate image-to-text conversion.
04
Copy or Export the Text
Review the extracted text, copy it to your clipboard with one click, or export it as a plain text file for use in any application.
Users love Umiocr
"I needed to digitize a stack of scanned Chinese documents and Umiocr got the job done instantly in my browser. The Umi-OCR accuracy for Chinese text is outstanding. No software to install, just upload and go!"
Why Choose Us
Fast & Lightweight OCR
Unlike bloated desktop software, Umiocr works immediately in your browser with no setup required.
1 Click
To start recognizing text from any image
100% Free
Open source, no registration, no fees
FAQ
Umiocr FAQ
Answers to commonly asked questions about Umiocr, Umi-OCR, and online OCR features.
What is Umiocr?
Umiocr is a free online OCR tool that runs in your browser, powered by the open source Umi-OCR recognition engine. It lets you extract text from images, screenshots, and PDFs directly in your browser — no download, no login, and no installation required.
Is Umiocr free to use?
Yes, Umiocr is completely free to use with no limits. You can convert images to text as many times as you need without creating an account, providing an email address, or paying any subscription fee.
What file types can I use for OCR?
Umiocr supports common image formats including JPG, PNG, BMP, and WEBP, as well as screenshots. You can also process scanned PDF documents. Simply upload or drag and drop your file to start extracting text.
What languages does Umiocr support?
Umiocr supports a wide range of languages for OCR including Simplified Chinese, Traditional Chinese, English, Japanese, Korean, and more. The Umi-OCR recognition engine is especially well-optimized for Chinese and bilingual Chinese–English documents.
Does Umiocr work without installation?
Yes. Umiocr is a fully browser-based online OCR tool — there is nothing to download or install. Open the website, click Launch OCR Tool, and start extracting text from images immediately. It works on Windows, macOS, Linux, and mobile browsers.
Is there an offline desktop version of Umi-OCR?
Yes. Umi-OCR is also available as a free, offline Windows desktop application for users who need batch OCR, screenshot capture hotkeys, or HTTP API access without an internet connection. You can download Umi-OCR for Windows from our dedicated download page.
Is my data safe when using Umiocr?
Absolutely. OCR processing in Umiocr is designed to keep your files private. Images are processed within the secure browser environment and are not permanently stored on any external server. Safe for receipts, ID documents, and confidential materials.
What is Umi-OCR?
Umi-OCR is a free and open source offline OCR software originally built for Windows by hiroi-sora on GitHub. Umiocr.com is a separate, independent online tool that uses the Umi-OCR recognition engine to offer browser-based OCR — no installation needed.
Also Available
Prefer working offline? Try the Desktop App
Umi-OCR is also a free, open source Windows desktop application with batch OCR, screenshot hotkeys, and HTTP API support — no internet connection needed.
Open Source Disclaimer
Umiocr is an independent online OCR tool powered by the Umi-OCR open source engine, created by hiroi-sora. Umiocr.com is not affiliated with or endorsed by the Umi-OCR project. All embedded OCR components are subject to their respective open source licenses. Umiocr does not claim ownership over the Umi-OCR engine or any associated intellectual property.