Convert JPG, PNG, MP4, WebP files instantly in your browser. No uploads, completely secure & works offline.
Choose images (JPG, PNG, WebP, GIF) or videos (MP4, MOV, WebM) from your device. No uploading required - files stay on your computer.
Our converter processes files directly in your browser using advanced JavaScript technology. Faster than server-based converters.
Get your converted files immediately. No waiting for server processing or download queues. Works even offline.
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.
Simply select your JPG files using our image converter, choose PNG as the output format, and click convert. The conversion happens entirely in your browser without uploading files to any server. You can convert multiple JPG files to PNG format at once using our batch processing feature.
Upload your MP4 files to our secure video converter, select WebM format, adjust quality settings if needed, and convert. Unlike other online converters, your video files are processed locally in your browser, ensuring complete privacy and security. No files are uploaded to servers.
LocalConverter is the most secure option for sensitive files because it processes everything locally in your browser. Unlike other free file converters that upload your files to servers, LocalConverter ensures your sensitive documents never leave your device. It works offline and supports batch conversion.
LocalConverter vs Competitors: While tools like Online-Convert.com, FreeConvert.com require uploading files to servers, LocalConverter processes files locally. This means: ✓ Faster conversion (no upload/download time), ✓ Complete privacy (files never leave your device), ✓ Works offline, ✓ No file size limits from servers, ✓ Zero bandwidth usage for conversion.
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.
Convert JPG to PNG, MP4 to WebM, and all other formats without uploading files. Your sensitive documents stay on your device, making it perfect for confidential business files, personal photos, and sensitive videos.
Skip the upload and download queues of traditional online converters. LocalConverter processes files instantly in your browser, making it faster than services like Online-Convert.com, FreeConvert.com, and other server-based tools.
After loading once, convert images and videos without internet connection. Perfect for air-gapped environments, remote locations, or when you want to ensure maximum security for file conversion.
No hidden costs, no premium subscriptions, no watermarks on converted files. Convert unlimited files with professional quality controls - all completely free. No registration required.
Start converting now: Select your files above and experience the fastest, most private file converter available. Support for 25+ image formats and 10+ video/audio formats including JPG, PNG, WebP, MP4, MP3, WebM, and more.