Open Magnifier

Open Magnifier: Free, Privacy-First, Ad-Free, Open Source Magnifier with Optical Character Recognition (OCR for Latin, Chinese, Devanagari, Japanese), Language Translation (Bengali, Chinese, English, French, Hindi, Indonesian, Japanese, Marathi, Portuguese, Spanish), speech output, and text captioning.

Magnify -> OCR (on-device) -> Translate (on-device) -> Speak w/captions

Experience a clutter-free, immersive, high-contrast magnifying glass accessibility tool designed for everyone.

Why Choose Open Magnifier?
• Privacy First: No ads, no tracking, no data collection, no network connections (except to download translation models)
• Full Transparency: Entirely Open Source under the GPLv3 license.
• Immersive Design: A true full-screen view without UI clutter.
• Native Landscape Lock: Designed to prevent "pillarboxing" when mirroring to a TV or monitor.

Core Features
• Freeze Frame: Lock the image to eliminate camera shake. Pan and zoom freely once frozen.
• High-Contrast Filters: Includes Inverted, Grayscale, and Black-Yellow modes for visual assistance.
• Advanced Control: Adjust brightness, contrast, and rotation to correct for hardware sensor mounting.
• Flashlight Control: Enable flashlight during live view
• Speak Image: On-device optical character recognition (OCR) for Latin, Chinese, Devanagari, and Japanese scripts
• Text Translation: Supports translation to Bengali, Chinese, English, French, Hindi, Indonesian, Japanese, Marathi, Portuguese, and Spanish. Requires Google Play device and a network connection to download the translation model

Touchscreen Gestures:
• Single Tap: Toggle Live view / Freeze Frame.
• Pinch to Zoom: Adjust magnification.
• Double Tap: Zoom in/out (Freeze) or open Preferences (Live).
• Swipe: Scroll around the frozen image.

Keyboard Commands:
• Space Bar: Toggle Live/Freeze.
• Z / Shift+Z: Zoom In/Out.
• Arrow Keys: Precise scrolling (Shift + Arrows to snap to edges).
• C / B / F: Adjust Contrast, Brightness, and Filters.
• R: Rotate the image (ideal for portrait docs on horizontal screens).
• L: Adjust Flashlight.
• S: Adjust speak image.

Pro Tips
• Desktop Magnifier: Plug your device into a monitor. The landscape lock turns your tablet into a desktop reading station.
• Legacy Devices: Give your old Pixel 2 or Amazon Fire tablet a second life as a dedicated accessibility tool.

Links
https://uglydog.io/magnifier/

About
Open Magnifier Copyright © 2026 Mark Tamura

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Open Source Libraries
Subsampling Scale Image View Copyright © 2018 Dave Morrissey

Google ML Kit Text Recognition Copyright © 2026 Google LLC. All rights reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0

Disclaimers
This app utilizes Google ML Kit Text Recognition to convert images into text. While we strive for high accuracy, optical character recognition (OCR) technology is inherently subject to limitations. Users should always manually review and verify the extracted text before relying on it for any critical, financial, legal, or medical purposes.

This service may contain translations powered by Google. Google disclaims all warranties related to the translations, express or implied, including any warranties of accuracy, reliability, and any implied warranties of merchantability, fitness for a particular purpose and noninfringement.