Convert Images In Your Browser Without Uploads
Free image converter that works entirely in your browser. Add files and convert them to your desired format. All processing happens locally, your files never leave your device.
Conversion Engine Ready to Start
Initialize the conversion engine to start converting your files. This process loads the necessary library for file conversion.
Supported Conversions
Explore all the input and output image formats supported by OfflineConvert.
All conversions are processed entirely in your browser for complete privacy.
How OfflineConvert Works
Experience the future of file conversion with our privacy-first, browser-based image converter that eliminates the security risks and complexity of traditional tools.
Server-Based Converters
Traditional online tools
Privacy & Security Risks
Your sensitive files are uploaded to unknown servers, potentially stored, analyzed, or accessed by third parties
Data Breach Vulnerability
Server databases can be hacked, exposing your personal images and confidential documents
Slow Upload/Download
Large files take forever to upload and download, especially with slow internet connections
File Size Limitations
Artificial limits on file sizes and conversion quotas to reduce server costs
Requires Internet
Cannot work offline, leaving you stranded without connectivity
Command Line Tools
ImageMagick, FFmpeg, etc.
Complex Installation
Requires downloading, compiling, and configuring software dependencies across different operating systems
Cryptic Commands
Memorizing syntax like `convert input.jpg -quality 85 -resize 800x600 output.webp` for every conversion type
Learning Curve
Hours spent reading documentation and troubleshooting error messages for simple tasks
Version Compatibility
Commands break when software updates, requiring constant maintenance and troubleshooting
No Visual Feedback
Cannot preview results or adjust settings interactively; pure trial-and-error workflow
OfflineConvert
Browser-based WebAssembly
Complete Privacy
Files never leave your device - all processing happens locally in your browser
Zero Installation
Works instantly in any modern browser - no downloads, installations, or account registrations required
Intuitive Interface
Drag-and-drop simplicity with real-time previews and visual controls for quality, dimensions, and format options
Lightning Fast
No upload/download delays - instant processing with professional-grade ImageMagick and FFmpeg engines
Works Offline
Once loaded, converts files without internet connection - perfect for sensitive or confidential work
Simple 3-Step Process
Upload Your Files
Drag and drop your images or click to select. Support for JPG, PNG, WebP, AVIF, HEIC, TIFF, GIF, BMP, and SVG formats. Your files stay on your device.
Choose Output Format
Select your desired format and customize quality settings, compression levels, dimensions, and transparency handling with our intuitive visual controls.
Download Results
Conversion happens instantly in your browser using WebAssembly. Download your converted files immediately - no waiting, no queues.
Powered by Industry-Standard Technology
OfflineConvert uses the same trusted libraries as professional desktop applications - ImageMagick and FFmpeg - compiled to WebAssembly for browser compatibility. This ensures professional-grade conversion quality while maintaining complete privacy and security.
Batch Processing
Convert multiple files simultaneously with consistent settings. Perfect for processing entire folders of images.
Format Detection
Automatically identifies input formats and suggests optimal conversion settings based on content type.
Quality Control
Fine-tune compression levels, dimensions, and other parameters with real-time quality previews.
Format Support
Convert between popular formats like JPEG, PNG, WebP, AVIF, GIF, and more with professional-grade results.
Frequently Asked Questions
Absolutely! All conversions happen entirely in your browser using WebAssembly. Your files never leave your device, are never uploaded to our servers, and we have no access to your data. This ensures complete privacy and security.
OfflineConvert uses advanced WebAssembly technology to run conversion engines directly in your browser. This means all processing happens locally on your device, eliminating the need to upload files to external servers.
We support all major image formats including JPG/JPEG, PNG, WebP, GIF, BMP, TIFF, AVIF, HEIC, and SVG. You can convert between any of these formats with full control over quality and compression settings.
No installation required! OfflineConvert works entirely in your web browser. Simply visit our website, select your file, choose your desired format, and convert. It works on any modern browser across all devices.
OfflineConvert is a free image converter that prioritizes your privacy by keeping all processing local to your device. No uploads, no file storage, complete privacy. Plus, you get professional-grade conversion quality with full control over output settings.
Yes! OfflineConvert supports batch conversion, allowing you to convert multiple images simultaneously. Just drag and drop multiple files or select them all at once for efficient bulk processing.
File size limits depend on your device's available memory (RAM) rather than a fixed restriction. Memory usage during conversion varies based on image dimensions, complexity, and file type. Most modern devices can handle typical image files without issues, but very large files may cause memory limitations on older devices.
Conversion speed depends on your device's processing power and the file complexity. Since everything runs locally without upload/download time, conversions are typically much faster than cloud-based tools, especially for larger files.
Yes! OfflineConvert works on modern mobile browsers including iOS Safari, Chrome, and Firefox. Performance depends on your device's capabilities, with newer smartphones and tablets handling most conversions efficiently.
Yes, OfflineConvert is completely free to use with no hidden costs, subscription fees, or premium tiers. All features are available to everyone at no charge, with no registration required.