macOS App
Fast, native file conversion for your Mac
Convert images, audio, video, and SVG files, all locally on your device. No uploads. No accounts. No subscriptions.
Download on the
Mac App Store
Coming Soon
Join Beta Testing
100% private. Your files never leave your Mac.
Convert anything natively
Hardware-accelerated encoding for every major format. Batch process hundreds of files in seconds.
Images
Batch convert between all major image formats with full quality control. Resize, compress, and optimise in one step.
WebP
PNG
JPEG
HEIF
TIFF
Audio
Convert audio files between lossless and compressed formats. Adjust bitrate, sample rate, and channels natively.
MP3
AAC
WAV
FLAC
Opus
AIFF
Video
Transcode video with hardware-accelerated encoding. Choose codec, resolution, and frame rate. All processed locally.
MP4 H.264
MP4 H.265
WebM
MOV
GIF
SVG Tracing
Turn raster images into clean, scalable vector graphics. Fine-tune detail, smoothing, and colour thresholds.
PNG → SVG
JPEG → SVG
BMP → SVG
Drag. Drop. Done.
Drop files straight onto the dock icon for instant conversion.
1
Drop files on icon
Drag any supported file onto the JustConvert dock icon.
2
Auto-converts
JustConvert instantly converts using your saved preferences.
3
Get notified
A notification confirms completion. Your file is ready.
PRIVACY FIRST
Your files stay yours
Fully Offline
No internet required. Every conversion happens on your Mac.
No Tracking
Zero analytics, zero telemetry, zero ads. Ever.
No Accounts
No sign-up, no login, no cloud storage. Just open and convert.
App Sandbox
Runs in a secure macOS sandbox. Only accesses files you choose.
Get Early Access
Be among the first to try JustConvert for macOS. Fast, private, and built natively for your Mac.
Download on the
Mac App Store
Coming Soon
Join Beta Testing
Join Waiting List
Frequently Asked Questions
Is there a file converter for macOS that works offline?
Yes. JustConvert is a native macOS app that converts images, audio, video, and SVG files locally on your Mac. No uploads, no cloud processing, no internet required. Coming in 2026.