Professional file conversion, completely private
Drop your images here or click to select
Supports: JPG, PNG, WebP, GIF, BMP, TIFF, HEIC, AVIF
✅ Conversion complete!
Drop your video/audio files here or click to select
Supports: MP4, WebM, MOV, AVI, MKV, MP3, WAV, OGG, FLAC, AAC
✅ Conversion complete!
Traditional online converters require you to upload your files to their servers, wait for processing, then download the results. This creates three bottlenecks: upload time, server processing queue, and download time. LocalConverter eliminates all upload/download time by processing files directly in your browser using your device's full processing power.
Absolutely. Your files never leave your device - they're processed entirely within your browser using WebAssembly and Canvas technologies. No data is transmitted to any server, stored in any database, or accessible to anyone else. You can even disconnect from the internet after loading the page and still convert files.
LocalConverter saves 100% of the bandwidth normally used for file conversion. A typical 50MB video file would require 100MB of bandwidth (50MB upload + 50MB download) with online converters. With LocalConverter, you use zero additional bandwidth since processing happens locally.
Images: JPG, PNG, WebP, GIF, BMP, TIFF, HEIC, AVIF with no size limits.
Video/Audio: MP4, WebM, MOV, AVI, MKV, MP3, WAV, OGG, FLAC, AAC. Files are limited to 2GB due to browser memory constraints, but this is still larger than most online converter limits.
LocalConverter works on desktop and mobile devices with modern browsers (Chrome, Firefox, Safari, Edge). Image conversion works everywhere, while video conversion requires browsers that support WebAssembly. For best performance, use Chrome or Edge on desktop devices.
Yes! LocalConverter supports batch processing with progress tracking. Select multiple files, choose your format and settings, then convert them all at once. You can download files individually or as a ZIP archive containing all converted files.
LocalConverter is completely free with no hidden costs, subscriptions, or premium tiers. There are no watermarks added to your files, no conversion limits, and no registration required. The tool runs entirely in your browser, so there are no server costs to pass on to users.
All conversions happen locally in your browser. Your files never leave your device or touch our servers.
No upload wait times. Start converting immediately with our optimized processing engine.
Once loaded, convert files even without internet. Perfect for sensitive or confidential files.
Convert multiple files at once with progress tracking and bulk download options.
Fine-tune quality, resolution, compression, and format-specific settings like a pro.
No subscriptions, no limits, no watermarks. Professional-grade conversion at zero cost.