Best Video Converters for Mac

The short answer. HandBrake is the answer for anything serious: it is open source, it gives you real control over the encode, and it carries presets so you do not have to start from scratch. CompressO is the one to reach for when you just want a file smaller and want to see the before-and-after side by side. Adapter covers straightforward format conversion. One thing worth knowing before you start: all three are, underneath, front ends to an encoder, so the quality you get is decided by the settings more than by which window you clicked them in.

This guide covers 3 video converters for macOS. Every fact below is drawn from the same verified records that back each app’s own page. The recommendations are our editorial judgment, not payment. Last verified 2026-10-05.

Quick comparison

What actually decides this

• Remux versus re-encode. Changing the container without changing the video stream is fast and lossless; re-encoding the video is slow and lossy. Many people re-encode when they only needed to remux, and pay a quality cost for nothing.
• Hardware versus software encoding. Hardware encoders are much faster and are the reason a laptop can transcode at all, but at the same bitrate they typically produce a slightly larger or softer picture than a slow software encode. The trade is speed against efficiency, not speed against correctness.
• How much control you want. A tool built on presets is faster to use and easier to get a good result from; a tool that exposes the full encode is better when you know what you want. The two are aimed at different people, and neither is wrong.
• Whether the work stays local. Video files are large and often personal. A converter that processes on your machine avoids uploading gigabytes and avoids the question of what happens to them afterwards.
• Batch and repeatability. If you convert one file occasionally, any of these works. If you process a folder regularly, whether the tool can be driven without clicking decides how much of your evening it takes.

Our picks

• HandBrake — It is an open-source transcoder for converting media to modern formats, which is the mature tool for anyone who will think about settings. Choose it when you want real control over the encode, with presets to start from.
• CompressO — It compresses video and images locally with batch processing, trimming and a before-and-after comparison slider, which makes the quality trade visible. Choose it when you want a file smaller quickly and want to check the result before trusting it.
• Adapter — It converts audio, video and images, which covers the straightforward case without a wall of encode settings. Choose it when you just need to change a file from one format to another.

The apps

HandBrake

HandBrake is a media converter for macOS. Video transcoder for converting media to modern formats. It is released under GPL-2.0.

Strengths. Free and open source under GPL-2.0, with no paid tier, account or watermark. Ships as a Universal Binary supporting both Intel and Apple Silicon Macs since version 1.4.0. Can encode through hardware accelerators — Apple VideoToolbox on Mac, plus Intel Quick Sync, NVIDIA NVENC and AMD VCE — instead of CPU-only software encoding.

Trade-offs. macOS 13 Ventura and everything below it is listed as deprecated: HandBrake may still run, but the project offers no support and most issues will not be addressed on those versions. It is a transcoder rather than an editor — there is no timeline, and reaching a particular output means understanding codecs and quality settings. The documentation lists 16 GB of RAM for up to 1080p and 32 GB for 4K as the minimum it formally supports.

Not for. Anyone who needs to edit video — HandBrake has no timeline for cutting, trimming or arranging clips. Users on macOS 13 Ventura or below — those versions are deprecated and receive no support. People who want to avoid choosing codecs and quality settings — reaching a specific output means choosing them yourself.

What it does. Converts video from nearly any source format to MP4, MKV or WebM. Encoding through FFmpeg, x264, x265 and SVT-AV1. Hardware encoders: Apple VideoToolbox, Intel Quick Sync, NVIDIA NVENC and AMD VCE. Built-in presets for devices, the web and social platforms.

HandBrake is listed with current version 1.11.2.

Full profile and verified facts for HandBrake →

CompressO

CompressO is a media converter for macOS. Free open-source app that compresses video and images locally, with batch processing, trimming, format conversion and a before-and-after comparison slider. It is released under AGPL-3.0.

Strengths. Free and open source under AGPL-3.0, with no paid tier, account, watermark or file-size limit. According to the developer, compression happens entirely on the Mac; the developer states the only network request the app makes is its own update check. Handles images and video in one app, including format conversion, GIF creation and SVG rasterisation.

Trade-offs. According to the developer, the macOS build is not notarized, so Gatekeeper blocks a manual install until the quarantine attribute is removed. The website and the repository disagree about the licence: the site says MIT, the repository ships AGPL-3.0. There is no universal macOS build, so you have to know which chip your Mac has before downloading. The macOS build is not notarized, so a manual download is blocked on first launch until you run xattr -cr /Applications/CompressO.app; the Homebrew cask does this for you. The product website states the licence is MIT, while the repository ships an AGPL-3.0 LICENSE file and its README says AGPL 3.0. Nuanyue records AGPL-3.0.

Not for. Anyone who wants a notarized app with no Gatekeeper prompt — the disk image is unsigned. Users who need fine codec and preset control, where HandBrake exposes far more. People on macOS 12 or earlier, since the developer’s own Homebrew cask sets the floor at macOS 13.

What it does. Compresses video with FFmpeg and images with pngquant, jpegoptim and gifski, all through binaries that ship inside the app. Batch compression for several videos or images at once, including dropping whole folders onto the window. Trims, splits, crops, rotates, flips and rescales video before compressing it. Converts between JPEG, PNG, WebP and GIF, and rasterises SVG to PNG, JPEG or WebP.

CompressO is listed with current version 3.0.0.

Full profile and verified facts for CompressO →

Adapter

Adapter is a media converter for macOS. Free audio, video and image conversion software. It is free.

What it does. Adapter converts images, audio and video on Mac and Windows. It’s a user interface powered by FFmpeg with VLC previews and much more. Get it free for Mac and Windows.

Adapter is listed with current version 2.1.6.

Full profile and verified facts for Adapter →

How to choose

• Free of charge. Adapter — no payment is required.
• No licence fee, source available. HandBrake and CompressO — the source can be read and, under the terms of each licence, reused.

Open source: HandBrake and CompressO (2 of 3).

Common mistakes

• Re-encoding when you only needed to change the container. Remuxing is lossless and fast; re-encoding is neither, and it is easy to confuse the two.
• Assuming “compress” always means smaller-and-fine. A bitrate set too low ruins the picture, and the loss is permanent.
• Ignoring hardware encoding entirely. It is the reason a modern Mac transcodes quickly; knowing when to use it and when to prefer software is worth the time.
• Converting a lossy file to another lossy format repeatedly. Every generation loses something, and the damage accumulates.

How this guide was put together

Each app’s facts come from its own record: the developer’s own pages and repository, the App Store listing where one exists, and the documentation, each with a source grade and an access date. Where a fact rests on the developer’s own statement rather than on something we verified independently, the sentence says so. Where our data has no value for something, the guide says “not published” instead of guessing.

A price appears here only where the record carries one from a stated source; the guide never estimates one, and it records the pricing model alongside so the two can be read together. Prices change and vary by region, so each app links to its own page for the current detail.

The facts and the recommendations are kept apart on purpose. Everything in the app entries, the comparison table and the answers above is composed from the records. The short answer, the criteria and the picks are our editorial judgment: they reflect what we would choose and why, and they are not paid for. Where we make a recommendation we name the condition it applies under, because we do not call anything “the best” without explaining the criteria.

Verified 2026-10-05.