How-to guides
Forty-six short guides for the things people actually need doing to a video on a Mac. Each one names the setting that matters and says what it costs you, rather than listing every control on the screen.
Two things are true of all of them. Everything happens on your own machine, so nothing is uploaded and nothing needs an account. And where a step is destructive (where doing it early makes a later step worse) the guide says so, because the order you work in matters more than the tool you pick.
Rescue a bad recording
Footage that is soft, shaky, noisy or combed. Start here if the problem is with the picture itself rather than with the format or the edit.
- How to deinterlace video on a Mac Comb-shaped stripes on moving edges, and why they have to go first.
- How to fix blurry video on a Mac Four different causes, and only some of them are fixable.
- How to fix pixelated video Two different faults under one word, and what an upscaler recovers from each (measured).
- How to remove background noise from a video on a Mac Hiss and hum out of the audio. Only the audio changes.
- How to remove noise & grain from a video on a Mac Grain and low-light speckle in the picture, denoised on-device.
- Remove wind noise from a video on a Mac Measured: the rumble drops 12.9 dB, the voice 0.2 dB. What it can't remove.
- How to restore old film footage on a Mac Single-frame dust, brightness flicker, and what cannot be recovered.
- How to restore old home videos on a Mac Four separate problems, and the order you fix them in decides the result.
- How to stabilize a shaky video on a Mac Tracks the motion and counter-shifts each frame. Audio kept.
- How to upscale 480p to 1080p on a Mac A realistic 2.25x jump. 480p straight to 4K mostly is not.
Change the format
Same footage, different container, size or resolution. These are the jobs where the answer is usually one setting and a wait, and where the wrong setting quietly costs you quality.
- How to batch upscale videos on a Mac Mostly about not discovering a mistake 200 files in.
- How to compress a video on a Mac Smaller for email or upload, at the same dimensions.
- How to convert HEIC to JPG on a Mac Apple's photo format, and the quality question nobody mentions.
- How to upscale a photo on a Mac without uploading it Measured on four photos, with the formats it takes and how iPhone HEIC photos are handled.
- How to convert MKV to MP4 on a Mac Usually a container swap that takes seconds and loses nothing.
- How to convert MOV to MP4 on a Mac Lossless with Pro when the codec fits: the video is copied, not re-encoded.
- How to crop a video on a Mac Black bars and letterbox, detected for you. Audio stays in sync.
- How to edit HDR video on a Mac, without washed-out colors Why iPhone clips come out grey and washed-out almost everywhere else.
- How to make a video vertical (9:16) on a Mac 9:16 for Reels and Shorts without cropping the subject out of frame.
- How to rotate a video on a Mac 90 degrees either way, 180, or mirrored.
- How to upscale a finished edit to 4K on a Mac Cut it on the timeline, then upscale the whole export in one pass.
- How to upscale video on a Mac: free & offline The main guide: drop a clip, let it auto-enhance, export.
Cut and arrange
Turning a long recording into something worth watching, trimming, re-timing, and putting several clips together.
- How to change video speed on a Mac 0.1x to 8x, with the audio pitch-corrected rather than chipmunked.
- How to loop a video on a Mac 2 to 20 times back to back, picture and audio both.
- How to make a highlight reel on a Mac The auto-editor finds the moments -- motion, sound, faces, speech.
- How to make a photo slideshow on a Mac A Ken Burns move on each photo, music, and video clips mixed in.
- How to make a split screen video on a Mac Stacked for Reels, side by side for reactions.
- How to make a picture-in-picture video on a Mac Easy to do, and easy to do badly. Where the inset belongs.
- How to reverse a video on a Mac Backwards, audio included, or a seamless boomerang.
- How to slow down a video on a Mac 0.5x and 0.25x, with the audio pitch-corrected.
- How to split a clip in a video on a Mac Press S at the playhead, then trim or re-time each half.
- How to trim a video on a Mac Frame-accurate: a range, the first ten seconds, or everything after a point.
Give it a look
Colour, grain, borders and text. Applied last, once the picture underneath is already right.
- How to add a border to a video on a Mac Seven colours, three thicknesses, the whole picture still visible.
- How to give a video a matte look on a Mac The faded, muted, lifted-shadow film finish.
- How to add a vignette to a video on a Mac Darkens the edges to pull the eye into the middle of the frame.
- How to add captions or text to a video on a Mac Burnt in, with exact show and hide timing.
- How to add film grain to a video on a Mac The grainy, analog, shot-on-film look.
- How to add title cards to a video on a Mac Images held on the timeline, with a Ken Burns move or a static hold.
- How to add a watermark to a video on a Mac A logo in whichever corner you want, at the size you pick.
- How to color grade a video on a Mac Cinematic, moody, warm, cool, mono. No LUTs and no curves.
- How to fade a video in and out on a Mac In from black or out to it, picture and sound together.
Fix the sound
Audio problems are the ones viewers forgive least, and most of them are fixable without touching the picture.
- How to extract audio from a video on a Mac The sound on its own, saved as an MP3.
- How to make the quiet parts of a video louder on a Mac Levels the loud and the quiet so the dialogue is audible.
- How to mute a video on a Mac Drop the track, or scale it 0.1x to 4x. With Pro the video is copied byte for byte.
- How to normalize audio in a video on a Mac Evens out inconsistent volume without you guessing at a gain.
Everything else
Odds and ends that do not fit the groups above.
- How to make a GIF on a Mac Sharp colours, a small file, and boomerangs.
- How to remove a watermark from a video on a Mac It is pixels, not a layer. What each of the three methods costs you.
- How to take a screenshot from a video on a Mac A full-resolution still at the exact moment. PNG or JPG.