Upscaling photos on your own Mac, with nothing uploaded
Topaz Gigapixel costs $149 a year and Topaz Photo $199 a year, both subscriptions. Pixelmator Pro is $49.99 once on the Mac App Store. macOS Preview resizes free but adds no detail. Vocemo upscales 4x on your own Mac for $15 a month, nothing uploaded.
- Topaz Gigapixel
- $149 a year, or $29 a month
- Pixelmator Pro
- $49.99 once on the Mac App Store
- What macOS does free
- Preview resizes, it adds no detail
- The local option
- 4x upscale on your Mac, $15 a month
What does upscaling actually do to a photo?
Enlarging a photo used to mean interpolation. The software looked at the pixels it had, guessed the colour of the gaps between them, and produced a bigger, softer version of the same picture. No new detail appeared, because there was no source for it.
Modern upscaling works differently. A model has been trained on a very large number of image pairs, one small and one large, until it learned what a sharp edge, a strand of hair, a brick wall or a line of printed text usually looks like at full size. When you feed it a small photo it draws a plausible large version that is consistent with the small one.
That word plausible is the whole story. The model is not retrieving detail. It is proposing detail. Most of the time the proposal is right, because hair really does look like hair. Sometimes it is wrong, and it is wrong confidently.
What can upscaling recover, and what can it not?
It helps a great deal with these:
- Print size. A 1200 pixel wide scan that looked poor at A4 becomes usable. This is the most common real reason people upscale anything.
- Edges and shapes. Roof lines, window frames, the outline of a coat. Anything with a clear boundary comes back cleanly.
- Texture at normal viewing distance. Fabric, foliage, gravel, hair in a face that is already a reasonable size in the frame.
- Mild compression damage. The blocky squares of an over compressed JPEG can be smoothed away, up to a point.
It cannot do these, and no tool at any price can:
- Read a face that was twenty pixels wide. You will get a face. It will be a guess. In a group photo from 1994 the person at the back may come back looking like a stranger.
- Recover text below a few pixels per character. A street sign or a number plate in the distance will be rendered as characters, and they may be the wrong characters.
- Undo motion blur across a whole frame. If the camera moved, the information is not distributed unevenly, it is gone.
- Bring back a blown out sky or a crushed shadow. Clipped highlights hold no data at all.
The practical rule that follows is simple. Keep the original file. Always. An upscale is a new interpretation, not a repaired negative, and in a year you may want to run a better model over the same source.
Why should family photos not be uploaded to an upscaling site?
Free browser upscalers are common and they are genuinely convenient. The trade is that you hand over the image. Old family photographs are an unusually poor thing to hand over, for reasons that have nothing to do with anyone being sinister.
A box of scanned family photos contains faces of children who never consented to anything, faces of people who have died, house exteriors, school uniforms with crests, and dates and place names written on the back that get scanned along with the front. It is a set of biometric records of your relatives with locations attached. Once it is on a server it is subject to that company's retention policy, its training data policy, its acquisition by somebody else, and its next breach.
None of that is required. The work is a fixed amount of arithmetic on an image. An Apple silicon Mac does it in a few seconds. If you want to check whether a given app is really doing the work locally, there are a few tests that settle it in about a minute.
How do you enlarge a photo on a Mac for free?
Two things are already installed, and it is worth knowing exactly where they stop.
Preview resizes. Open the image, choose Tools, then Adjust Size, tick Resample image and enter the new dimensions. This is honest interpolation. The file gets bigger, the picture does not get sharper, and at 4x it will look soft. Preview will also remove a background for you from the Tools menu, which is a genuinely good free feature.
Photos has auto adjustments and a sharpening slider under Edit. These improve a photo that is already the right size. Neither Photos nor Preview has an upscaler that adds detail. There is no free built in equivalent on macOS, which is why paid tools exist for this.
If you only need a bigger file for a form or an upload limit, stop here. Preview is enough. If you need the enlargement to hold up when someone looks at it, you need a model.
What do Mac photo upscalers cost in 2026?
Prices verified September 2026, from each vendor's own pricing page, in US dollars.
| Option | Runs on your Mac | What you get | Price |
|---|---|---|---|
| macOS Preview | Yes | Resampling only, no added detail | Free |
| macOS Photos | Yes | Adjustments and sharpening, no upscaling | Free |
| Pixelmator Pro | Yes | Full image editor with Super Resolution | $49.99 once |
| Pixelmator Pro via Apple Creator Studio | Yes | Bundled with Final Cut Pro, Logic Pro and more | $12.99 a month, or $129 a year |
| Topaz Gigapixel | Yes, unlimited local rendering | Dedicated upscaler, many models | $149 a year, or $29 a month |
| Topaz Photo | Yes, unlimited local rendering | Sharpen, denoise, upscale, face recovery | $199 a year, or $39 a month |
| Topaz Studio | Yes | Every Topaz photo and video app | $399 a year, or $69 a month |
| Vocemo | Yes | 4x upscale, background removal, object erase, depth blur | $15 a month, or $144 a year |
If you would rather this ran on your own Mac, that is what Vocemo does. Free for 7 days, then $15 a month for 3 Macs.
Download free for MacTwo things in that table deserve saying out loud. Topaz desktop apps render locally, so the privacy objection to Topaz is not that it uploads your photos, it is the price and the fact that the licence is now a subscription. Pixelmator Pro at $49.99 once is the best value on the list if a single good upscale a month is all you want, and it is a real editor as well.
What the local option does not do
Being straight about this is more useful than a feature list.
- Vocemo is not an image editor. There are no layers, no curves, no masks and no brushes. It does four photo jobs: upscale, remove background, erase an object, add depth blur. For retouching, buy Pixelmator Pro.
- 4x is the ceiling. There is no 8x and no 16x. Topaz goes further if you need a billboard.
- It will not rescue a hopeless source. Everything in the section above about faces and small text applies to every tool equally, including this one.
- It needs Apple silicon and macOS 13 or later. Intel Macs are not supported.
- The first run of a feature downloads its model. The installer is 5.5 MB, so the model arrives on first use. After that the feature works with the network off, and the model shuts down after 120 seconds of sitting idle.
What you get in exchange is that the photographs never leave the machine, there is no per image charge, and a folder of scans can be processed without watching an upload bar. The wider case for doing this kind of work on the machine you already own is set out here.
How should you actually work through a box of old scans?
Scan first, at the highest resolution the scanner offers, and keep those files untouched in a folder you never edit. Upscaling a good scan is much better than upscaling a phone photograph of a print, because a phone adds its own sharpening and its own noise reduction before you start.
Then upscale into a second folder, never over the top of the originals. Check the faces at full size on each result, because faces are where a model invents most, and reject the ones where the person has changed. Finally, print or share from the upscaled copy and archive the originals.
A practical note on expectations. A 4x upscale of a 1000 pixel scan gives you 4000 pixels, which prints well at A3. That is usually the actual goal, and it is achievable. Turning a thumbnail into a poster is not.
Questions
How do I upscale a photo on a Mac without a subscription?
Pixelmator Pro is $49.99 as a one time purchase on the Mac App Store and includes Super Resolution, which scales an image up and enhances detail. Vocemo does a 4x upscale on your own Mac for $15 a month, or $144 a year. macOS Preview will resize an image for free, but it interpolates and adds no detail.
Is there a free way to enlarge an image on macOS?
Yes, but only in the plain sense. Open the image in Preview, choose Tools then Adjust Size, tick Resample image and set the new dimensions. The file gets larger and the picture gets softer, because no new detail is created. There is no free upscaler built into macOS that adds detail.
How much does Topaz Gigapixel cost in 2026?
Topaz Gigapixel for Mac and PC is $149 a year, or $29 a month billed monthly, from Topaz Labs' own pricing page checked September 2026. Topaz Photo is $199 a year or $39 a month. Topaz Studio, which includes every Topaz app, is $399 a year.
Does Topaz upload my photos to a server?
The desktop apps render locally, and Topaz's own pricing page lists unlimited local rendering for them. Topaz also sells browser based products that do process in the cloud, so check which one you are using. The objection to Topaz on the desktop is the subscription price, not the privacy.
Can upscaling recover a blurry face in an old family photo?
Not reliably. The model draws a face that is consistent with the pixels it has, so if the face was only twenty or thirty pixels wide the result is a plausible invention rather than a recovered likeness. Always keep the original scan and compare the two before you share the upscaled version.
Is it safe to use a free online photo upscaler?
It depends what is in the photo. A stock landscape is low risk. A box of scanned family photographs is a set of faces of relatives, some of them children, with dates and places attached, and uploading it puts all of that under someone else's retention policy. Doing the same job on your own Mac removes the question.
Sources
Every price on this page was read from the vendor's own page on the date shown above. Prices change; if you find one out of date, tell us and we will correct it.
Competitor prices in this article were checked in September 2026. Prices change; if you find one out of date, write to us and we will correct it.