The Native Media Studio for Images, Video & Audio.
Lightning-fast, local-first conversion for macOS. Batch process images (PNG, WebP, HEIC, AVIF) and now video & audio (MP4, MOV, MKV, WebM, M4A) with hardware acceleration, saving up to 90% space with zero quality loss.
100% native macOS utility • Apple Silicon and Intel
One native studio for images, video, and audio.
Hardware-accelerated conversion, trimming, and audio tools sit alongside everything you need for modern web export, archival, and photo cataloging, all in a single macOS app.
Hardware-Accelerated Encoding
Leverage native Apple Silicon (M1-M4) and Intel hardware encoders for ultra-fast MOV, MP4, MKV, AVI, and WebM exports.
Multi-Format Video Conversion
Convert between MP4 (H.264 & HEVC/H.265), QuickTime MOV, MKV, AVI, and WebM, all processed 100% locally.
Built-In Video Trimmer
Cut the start and end of any video with a real-time visual preview before exporting or creating GIFs.
Animated GIF Generator
Turn trimmed video highlights into lightweight, high-quality animated GIFs in one click.
Instant Audio Mute & Extraction
Remove audio tracks instantly for social clips and tutorials, or extract pure audio to M4A with one click.
Flexible Resolutions
Export in 4K UHD, 1080p Full HD, 720p HD, or 480p SD to match any platform or purpose.
100% Local-First Engine
Zero cloud server uploads. All image and video operations execute offline using native Apple Silicon and CoreGraphics/VideoToolbox acceleration on your Mac.
Batch Conversion & WebP / AVIF
Convert hundreds of photos in parallel. Modern web formats like WebP and AVIF deliver up to 90% smaller file sizes with pristine visual fidelity.
64-Bit Duplicate Photo Detector
Identifies exact and near-duplicate photos in your queue using perceptual 64-bit visual hashing, helping you free up disk space effortlessly.
Presets & Custom Export Recipes
Pre-configured recipes for Web Standards, Max Compression, Social Media, Email Attachments, and Lossless Archival in one click.
Interactive Visual Quality Split
Compare original vs optimized output side-by-side with an interactive split slider and exact pixel-level dimension metrics.
Privacy Shield & EXIF Inspector
Inspect and strip sensitive GPS coordinates, camera models, dates, and metadata from both images and videos before sharing.
Creator & social media presets.
1-click recipes sized exactly for the platforms you post to most.
- Instagram Reels / TikTok: 1080×1920 (9:16), vertical video export, ready to post
- Instagram Feed Portrait: 1080×1350 (4:5)
- YouTube Thumbnail: 1280×720 WebP (16:9)
- OpenGraph / Twitter Cards: 1200×630
- Web Favicon Suite: 32×32
- Archival Lossless: PNG / WebP at 100%
Native macOS integration.
ConvertCalm feels right at home on your Mac, inside Finder, Shortcuts, and beyond.
- Finder Quick Actions and Shortcuts automation with macOS 14+ AppIntents
- convertcalm:// URL scheme for third-party tools and custom scripts
- A native interface tuned for Dark and Light Mode on macOS Sonoma and Sequoia
- No tracking, no collection, and no external servers, ever
Frequently Asked Questions
Which image formats does ConvertCalm support?
ConvertCalm supports over 500 image formats for import and processing, including PNG, JPEG, WebP, HEIC, AVIF, TIFF, GIF, SVG, and RAW photo formats. You can convert to WebP, HEIC, AVIF, JPEG, PNG, or keep the original format.
Does ConvertCalm upload my photos or videos to the cloud?
No. ConvertCalm is a 100% local-first macOS app. All compression, quality calculations, metadata stripping, and format conversions, for both images and video/audio, take place offline directly on your Mac using native hardware acceleration.
How does the quality slider affect file size and visual fidelity?
The quality slider controls lossy compression intensity (from 10% to 100%). At 75%-85%, you get an optimal balance of up to 90% size reduction with zero visible quality loss. At 95%-100%, you get archival near-lossless output.
Where are optimized images saved?
By default, ConvertCalm creates an “Optimized” subfolder next to your original files. In Settings, you can also select any custom destination folder on your Mac or export to the same directory with a custom suffix.
How does the 64-bit duplicate photo detector work?
The Duplicate Detector scans images in your queue using 64-bit perceptual visual hashing (dHash). It calculates visual similarity percentage so you can find exact or near-duplicate photos and clean them up safely.
What video and audio formats does ConvertCalm 2.1 support?
The new Video & Audio Studio converts and compresses MOV, MP4 (H.264 & HEVC/H.265), MKV, AVI, and WebM, with hardware-accelerated encoding on Apple Silicon and Intel Macs. You can also extract pure audio to M4A in one click.
How does the video trimmer work?
Open any video in the Video & Audio Studio and drag the In and Out points on the timeline for a real-time visual preview. Trim before exporting to your target format, or turn the trimmed clip directly into an animated GIF.
Can I mute a video’s audio or extract just the audio track?
Yes. With one click you can remove a video’s audio track entirely (great for social clips and tutorials) or extract the audio as a high-fidelity M4A file, without re-encoding the video.
What are the Social Media & Web presets?
1-click recipes sized for the platforms you post to most: Instagram Reels/TikTok (1080×1920), Instagram Feed Portrait (1080×1350), YouTube Thumbnails (1280×720 WebP), OpenGraph/Twitter Cards (1200×630), a Favicon Suite (32×32), and Archival Lossless (PNG/WebP 100%).
Can I automate ConvertCalm with Shortcuts or Finder?
Yes. ConvertCalm supports native Finder Quick Actions and the macOS Shortcuts app via AppIntents (macOS 14+), plus a convertcalm:// URL scheme for scripting, all processed locally on your Mac.
Why ConvertCalm is the media converter Mac users keep
Images, video, and audio in one app
Most Mac converters do one job. ConvertCalm batch-converts images (PNG, JPEG, WebP, HEIC, AVIF, TIFF, SVG, GIF, RAW) and, since version 2.1, video and audio too (MP4 with H.264 or HEVC, MOV, MKV, AVI, WebM, and M4A extraction), without a second tool or a web uploader.
Hardware acceleration, not a spinning beach ball
Encoding runs on Apple's own VideoToolbox and CoreGraphics frameworks, so an M1 through M4 Mac (or an Intel one) uses its dedicated media engine instead of the CPU. Hundreds of photos convert in parallel, and WebP or AVIF output cuts up to 90% of the file size with no visible loss.
Nothing is uploaded, and nothing is tracked
There is no cloud queue and no account. Every conversion, trim, GIF, EXIF strip, and duplicate scan happens on your Mac, offline. The Privacy Shield can also remove GPS coordinates, camera model, and timestamps from files before you share them.