Which image upscalers give you the full-size file for free?
We do not currently have an affiliate relationship with any product on this page, and no vendor paid for placement or review. Outbound product links are marked nofollow.
The Short Answer
- Upscayl — Upscayl is a free open-source desktop app — "Download once, forever yours" — that upscales on your own hardware, so there is no server in the loop to watermark or count the output.
- Bigjpg — Bigjpg's own table gives the free plan "Pictures / Month: 20" at a "Max Enlarging Ratio: 4x", and never mentions a watermark on any tier.
- Let's Enhance — Let's Enhance lists "Watermark (removed for paid users)" as a free-plan line and caps free upscaling at 8 megapixels against 256 or more on paid tiers.
- Cutout.pro — Cutout.pro describes its free account as "Free previews forever" and ties "ultra-HD watermark-free downloads" to a paid subscription.
| Product | Best for | From | Free plan | Free-plan output |
|---|---|---|---|---|
| Upscayl | No server, so nothing to stamp | Free only | Yes | Full size, unmarked |
| Bigjpg | Twenty free images, no watermark mentioned | — | Yes | Counted or capped |
| Let's Enhance | The watermark, printed on the pricing page | $9/mo (annual) | Yes | Paid for clean output |
| Cutout.pro | Free previews, paid files | $5/mo | Yes | Paid for clean output |
What we checked, and what we did not test
Upscaling is the kind of task where the output either is or isn’t usable, and the thing that makes it unusable is rarely the algorithm. It is a logo in the corner, or a file that came back smaller than the number on the marketing page, or a credit counter you did not know was running.
So we opened four pricing pages on 6 August 2026 and looked for what the free tier hands back: resolution, watermark, and count. Each verdict quotes the vendor. We did not upload images.
Where the restriction lives
There is a pattern here that is worth stating on its own, because it holds across the whole category and explains the results better than any feature comparison.
A watermark has to be applied somewhere. Every product on this page except one processes your image on its own servers, which is exactly the point where a mark, a resolution cap, or a credit deduction can be inserted — and in three cases out of four, something is. Upscayl runs on your machine. There is no upload, no account, and no server-side step at which a restriction could be applied, which is why its answer to this category’s question is different in kind rather than in degree.
That is not a claim about generosity. It is a claim about architecture: a tool that never sees your file cannot charge you for handing it back.
No server, so nothing to stamp
1. Upscayl — No server, so nothing to stamp
Upscayl answers this category’s question by removing the place where the answer usually gets decided.
Best for Unlimited upscaling that never leaves your machine
From Free only. Free plan: The desktop app is free and open source — "The #1 Free and Open Source AI Image Upscaler for Linux, MacOS and Windows", with "Download once, forever yours" and no account, credits or image cap.
The homepage states "Free and Open Source. We ❤️ open source. Download once, forever yours." The desktop app runs on your own hardware with no account and no credit system, so there is no server in the loop to stamp, shrink or count the output — the upscaled file is written to your disk at full size.
Pros
- Free and open source under AGPLv3, with no account or credits.
- Processing is local, which removes the usual place a watermark or resolution cap would be applied.
- No stated limit on how many images you process.
Skip it if
- The site publishes no speed, hardware or maximum-resolution figures for the desktop app.
- The same company sells a separate paid "Upscayl Cloud" service from $24.99 a month, which is easy to mistake for the free app.
- There is no FAQ or documentation page for the desktop app itself — only homepage copy.
Twenty free images, no watermark mentioned
2. Bigjpg — Twenty free images, no watermark mentioned
Bigjpg charges you in image count and enlargement ratio rather than in marks on the picture.
Best for Twenty free images a month with nothing stamped on them
From —. Free plan: Free Plan — "Pictures / Month: 20", "Speed: Slow", shared server, "Max Upload Size: 5MB", "Max Enlarging Ratio: 4x", with free accounts capped at 3000×3000px and "The Free version can only process two images simultaneously".
- Basic — price not shown on the page we opened ($6 one-time for 2 months of access — 500 pictures a month, 50MB uploads, 16x enlargement; not a recurring subscription)
- Standard — price not shown on the page we opened ($12 one-time for 6 months — 1,000 pictures a month)
- Premium — price not shown on the page we opened ($22 one-time for 12 months — 2,000 pictures a month)
Bigjpg's own plan table gives the Free Plan "Pictures / Month: 20" at a "Max Enlarging Ratio: 4x" with 5MB uploads, and the page separately warns that "The Free version can only process two images simultaneously." No watermark is mentioned on any tier, so what free costs you here is count and enlargement ratio rather than a mark on the image.
Pros
- No watermark is mentioned on any tier, including free — unusual in this category.
- Paid access is sold as one-time payments covering 2, 6 or 12 months rather than a subscription.
- Offline enlarging is listed as available on the free plan.
Skip it if
- Twenty images a month at 4x, against 16x on paid tiers.
- Free uploads are capped at 5MB against 50MB paid, and only two images process at once.
- The page never states the exact output dimensions a free upscale produces beyond the 3000×3000px account cap.
The watermark, printed on the pricing page
3. Let's Enhance — The watermark, printed on the pricing page
Let’s Enhance does the honest version of a watermark: it tells you about it on the pricing page rather than at the download button.
Best for Seeing the watermark rule stated on the pricing page itself
From $9/mo (annual). Free plan: Free — "10 Free credits" on signup with "No credit card needed", input images up to 24 megapixels or 50MB, upscaling capped at 8 megapixels, and "Watermark (removed for paid users)".
- Starter — $12/mo, or $9/mo billed annually (100 credits a month, upscaling up to 256 megapixels, up to 600 unused credits carried over)
- Pro — $32/mo, or $24/mo billed annually (300 credits a month, up to 350 megapixels)
- Max — $45/mo, or $34/mo billed annually (500 credits a month, up to 512 megapixels)
The pricing page lists "Watermark (removed for paid users)" as a free-plan line, and the FAQ explains the mechanism: "After purchasing a subscription or a pay-as-you-go bundle, you will be able to enhance and save your pictures without a watermark. This will also apply to images that have been enhanced with free credits. Just download images again to get them watermark-free." Free output is marked and capped at 8 megapixels.
Pros
- The watermark rule is printed on the pricing page rather than discovered at download.
- Ten signup credits need no card.
- Upgrading retroactively unmarks images you already enhanced with free credits.
Skip it if
- Free downloads carry a watermark and stop at 8 megapixels against 256 or more on paid tiers.
- The page states no way to earn further free credits after the initial ten.
Free previews, paid files
4. Cutout.pro — Free previews, paid files
Cutout.pro’s own word for its free tier is “previews”, which is the most accurate one-word summary any vendor on this page gives.
Best for Free previews, paid files
From $5/mo. Free plan: Free account — "Free previews forever", "5 free credits", and "Invite friends to earn 5 free credits".
- 80 credits a month — $5/mo ($0.063 a credit)
- 170 credits a month — $9.90/mo ($0.058 a credit, "cancel anytime")
- 300 credits a month — $16.90/mo ($0.056 a credit)
- 550 credits a month — $29/mo ($0.053 a credit)
- 1000 credits a month — $49/mo ($0.049 a credit)
- 1450 credits a month — $69/mo ($0.048 a credit)
- One-time credit packs — price not shown on the page we opened (Not monthly: 30 credits $4.99, 300 credits $39, 900 credits $79, 3,000 credits $199, 30,000 credits $1,399)
The upscaler tool's own FAQ ties the clean file to payment: "We provide free trial credits to experience AI's powerful capabilities. For high-frequency users or those needing batch processing and ultra-HD watermark-free downloads, we offer flexible subscription plans." The pricing page's phrase for the free account is "Free previews forever" — a preview is what free produces.
Pros
- Five free credits need no card, and the page offers five more for inviting someone.
- Per-credit cost is printed for every tier, down to $0.047 at the largest pack.
Skip it if
- "Ultra-HD watermark-free downloads" is named as a paid feature, and the free tier is described as previews.
- The pages never state how many credits one upscale costs, so the price per finished image cannot be worked out.
- The obvious URL, /pricing, returns 404 — the real page is /image-pricing.
What this means if you are choosing today
If you have a computer capable of running it, Upscayl ends this comparison — free, unlimited, unmarked, and offline. The trade is that you supply the hardware and the site publishes no performance figures, so a slow machine is your problem rather than a queue.
If you want a browser and a handful of images a month, Bigjpg’s twenty at 4x come back unmarked as far as its own pages say, and its one-time payments avoid another subscription. Choose Let’s Enhance when you need the very large output sizes its paid tiers publish — 256 megapixels and up — and read Cutout.pro’s free tier as what it calls itself.
Frequently Asked Questions
Can you upscale an image for free without a watermark?
On Upscayl and Bigjpg, according to their own pages. Upscayl is free open-source desktop software that processes locally, so there is no upload and nothing to stamp. Bigjpg's plan table never mentions a watermark on any tier and caps free use at 20 images a month at 4x. Let's Enhance and Cutout.pro both tie unmarked output to payment.
What does Let's Enhance's free tier actually give you?
Ten signup credits with no card, input images up to 24 megapixels, output capped at 8 megapixels, and a watermark. The pricing page states it as a free-plan line — "Watermark (removed for paid users)" — and the FAQ adds that upgrading removes it retroactively: "Just download images again to get them watermark-free."
How many free images does Bigjpg allow?
Twenty a month, at a maximum 4x enlargement with a 5MB upload limit, and the page warns that "The Free version can only process two images simultaneously." Paid tiers raise that to 16x and 50MB, and are sold as one-time payments covering 2, 6 or 12 months rather than as subscriptions.
Is Upscayl really free, or is there a catch?
The desktop app is free and open source under AGPLv3, and the catch is that it is not the only Upscayl product. The same site sells "Upscayl Cloud" from $24.99 a month, which is easy to land on by accident. The free app publishes no speed or maximum-resolution specs, because performance depends on your own hardware.
Did you upscale any images yourselves?
No. Every verdict here was read on the vendor's own pricing or tool page on 6 August 2026 and is labelled as read, not run. Two things would only be settled by running them: the exact pixel dimensions a free Bigjpg upscale produces, and how many credits one Cutout.pro upscale actually costs, which no page we opened states.
How We Keep This Updated
Prices move and vendors rewrite their plan tables, so every value on this page carries the date we read it. When a page changes, the change lands here rather than being edited away quietly. The procedure is on the methodology page. tell us and we will re-check it.
- 2026-08-06 — First published. Free-tier watermark and resolution rules read on each vendor's own pricing or tool page; Cutout.pro's real pricing page found at /image-pricing after /pricing returned 404.