Download gImageReader
Get the latest version of the best open-source OCR tool. Safe, free, and fast.
Windows Downloads (All Versions)
Select the version that matches your system architecture. The Qt6 version is recommended for modern systems.
| File Description | Version | Size | Download |
|---|---|---|---|
| Windows 64-bit Installer Qt6 | v3.4.3 | 56.3 MB | Download .exe |
| Windows 64-bit Portable No Install | v3.4.3 | 84.1 MB | Download .zip |
| Windows 32-bit Installer Qt6 | v3.4.3 | 55.7 MB | Download .exe |
| β οΈ Windows 7 / 8 Users: Please download the Legacy Qt5 version below. | |||
| Legacy Windows Installer Qt5 | v3.4.2 | 38.3 MB | Download v3.4.2 |
Linux Installation
gImageReader is available in the official repositories of most distributions.
Source Code
Developers can inspect the code or build from source.
Verify Your Download (SHA256)
To ensure your file is safe and has not been corrupted during download, you can compare its SHA256 hash with the official values below. These checksums are provided directly by the developer.
β How to verify SHA256 on Windows?
Get-FileHash C:\Path\To\gImageReader.exe -Algorithm SHA256
Replace the path with your actual download location. If the output code matches the values above, your file is 100% authentic.
gImageReader relies on the Tesseract engine, which is built using Microsoft Visual Studio. If you encounter errors like MSVCP140.dll missing or VCRUNTIME140.dll not found when launching the app, it means your PC is missing the required runtime libraries.
This is common on fresh Windows installations. To fix it, simply download and install the vc_redist.x64.exe from Microsoft.
Download latest Visual C++ Redistributable from MicrosoftHow to Install gImageReader
Standard Installation (Windows .exe)
- Download the Installer (.exe) file from the list above.
- Double-click the file to launch the setup wizard.
- You may see a “Windows protected your PC” warning (SmartScreen). Click “More info” -> “Run anyway”. This happens because the open-source certificate is not registered with Microsoft.
- Follow the on-screen instructions. We recommend keeping the default “Tessdata” location.
- Once installed, launch gImageReader from your Start Menu.
Portable Version (No Install)
- Download the Portable (.zip) archive.
- Extract the contents to a folder on your USB drive or Desktop.
- Open the extracted folder and look for
bin/gimagereader-qt5.exe(orqt6.exe). - Double-click to run. No administrator rights are required.
Important: Installing Languages
By default, gImageReader may only come with English language data. If you try to recognize Chinese, Japanese, or German text without the language pack, the results will be poor.
Fix: Install Visual C++ Redistributable 2015-2022 (x64). See the link at the top of this guide.
Fix: You likely installed the 32-bit (x86) VC++ on a 64-bit system. Install the x64 version.
Fix: Click “More Info” β “Run Anyway”. gImageReader is open-source and not digitally signed by Microsoft.
Fix: This happens with Portable versions if not extracted properly. Ensure you extract the entire ZIP folder, not just the EXE.
- Major Change: Windows builds switched to Qt6 framework for better High-DPI support.
- Enhancement: Added support for PoDoFo 1.0.x libraries (PDF handling).
- Bugfix: Fixed incorrect dictionary mapping for Latin languages.
- Bugfix: Resolved crash when adding a new line to the hOCR tree editor.
- Fix: Corrected “control modifier” causing page blanking during mouse selection.
- Feature: Apply brightness, contrast, and resolution settings to all selected images at once (Batch editing).
- Fix: Corrected dictionary installation directory on Windows.
- Fix: Fixed crash in FileTreeModel when handling temporary files.
- Enhancement: Various Wayland support improvements for Linux users.
- Enhancement: Add 2px margin to autodetected areas for better recognition accuracy.
- Fix: Reworked HTML escape function to fix unicode string corruption.
- Fix: Adapt for
enchant2dictionary location changes.
Older versions are available in the GitHub archive.
What’s Next?
Don’t stop at downloading. Make sure you have the right language packs and know how to use the software effectively.
