What does 2×, 4×, and 8× mean?

2× doubles width and height, so an 800×600 photo becomes about 1600×1200. 4× multiplies each side by four. 8× multiplies each side by eight and spends more credits. The model reconstructs the extra pixels. It does not only stretch the original.

Is upscaling the same as resizing?

No. A resize only changes the canvas, so edges go soft when you enlarge. This tool rebuilds detail — a label, a stitch, a hair edge — from the photo you uploaded. Use the editor when you already have enough pixels and only need an exact size, a crop, or a watermark.

Is it free? Is there a watermark?

Filvo does not add a watermark on the free export or the full-resolution file. Guests and unpaid accounts get 2 tests per day at 2× with no card. The first Google sign-in adds 2 credits. Full-resolution 2×, 4×, and 8× use credits.

Will it always look perfect?

It beats a simple stretch, but it cannot recover detail that was never in the file. A tiny thumbnail or a heavily compressed JPEG still looks soft, especially on small text. Use the compare slider before you save, and start from the largest original you have.

What is the difference between the free 2× export and full resolution?

The free 2× export is a compressed WebP with the long edge capped at 1280 pixels, so you can judge the reconstruction first. Full resolution is the 2×, 4×, or 8× result without that cap, and it uses credits. Sign in with Google for 2 credits, then buy more on the pricing page if you need additional full-size exports. Neither file includes a Filvo watermark.

When will a bigger scale not help?

A larger scale helps when the subject is already recognizable and you need more pixels for a crop, a listing, or a print. It will not turn a blurry thumbnail into a sharp product photo, and it will not repair text that has already broken into blocks. If 2× still looks soft in the compare slider, 4× and 8× mostly enlarge that softness.

Are my images stored?

The file goes through Filvo’s API only to generate the enlarged result. It is not added to a public gallery, and Filvo does not keep a personal photo library of your uploads. Browser tools elsewhere on the site, such as compress and PDF merge, stay on your device.

Original

4×

4× Upscaled

Cloud-Based Web App · 100% In-Browser · No Installation Required

Image Upscaler

Sharper detail —2× & 4×

Upscale images online with AI. 2× is a free preview. 4× uses credits. Sharper than a simple resize — no watermark.

AI super-resolutionNo watermarks

AI Upscale

or drag & drop images here (JPG, PNG, WEBP)

UploadUpscale 2× / 4×Export Image

🔒 Private processing: your files aren’t kept as a public gallery.

No image?
Try one of these:

No registration2× & 4× AI upscale

By uploading an image you agree to our Terms of Service. To learn more about how we handle your personal data, check our Privacy Policy.

Stunning Quality

Drag the slider handle to see before and after upscaling

How it works

Three steps. 2× is free.

1
Choose an image
Drop a JPG, PNG, or WEBP up to 20 MB — no account needed.
2
Let AI upscale
Pick 2× (2 free trials per day) or 4× (credits), then check the compare slider.
3
Save the result
Free 2× is a WebP up to 1280px with no watermark; a credit pack keeps full 2× / 4× / 8×.

In one sentence

Filvo Image Upscaler enlarges photos with AI. The file is sent through Filvo’s API to generate the larger image, then returned so you can save it. There is no public gallery and no watermark.

Filvo vs typical cloud AI tools

The file is sent only to generate the result. Filvo does not keep a public gallery.

Filvo vs typical cloud AI tools
Feature	Filvo	Typical cloud tools
Where the file goes	Through Filvo’s API to generate the result, then not kept in a gallery	Uploaded and often stored or used in marketing
Account to try	Not required for cutout and upscale. Object removal needs sign-in	Usually required
Watermark	Never on the saved file	Common on free tiers
Public gallery of uploads	No	Sometimes used for marketing
Free tier	2 web previews per day, then credits for original HD	Credits or a tight daily cap
Credit pack	20 credits for $2.99, one-time. Credits never expire. Original HD and batch up to 25.	Paid credit packs or a $10–$20 monthly plan

An image upscaler rebuilds detail when a photo is too small. Filvo multiplies the width and height and fills in the new pixels. This is super-resolution, not a stretch that only makes the same pixels larger.

What 2×, 4×, and 8× do

2× doubles each side. A 800×600 photo becomes about 1600×1200 — four times the pixels. 4× multiplies each side by four, so the same photo becomes about 3200×2400. 8× multiplies each side by eight and spends more credits, because the result is much larger. The model reconstructs edges, texture, and small type from the file you uploaded. It does not invent a sharper photo than the source can support.

Upload a JPG, JPEG, PNG, or WEBP up to 20 MB. No account is required to try 2×. The file is sent through Filvo’s API only to generate the result. There is no public gallery and no personal photo library. Saved files do not carry a Filvo watermark.

When enlarging helps

Sellers enlarge a catalog shot that was exported too small for a listing zoom. Designers enlarge a wordmark or a logo that only exists as a screenshot. Archivists enlarge a scan so a crop still has enough pixels. Use the compare slider. If a label, a stitch, or a hair edge looks cleaner than a simple resize, the pass did its job.

Use the editor when you already have enough resolution and only need an exact pixel size, a crop, or a watermark. Upscaling is the step for a file that is genuinely too small.

Where a bigger scale stays soft

A larger scale will not repair a source that never had the detail. A 200-pixel thumbnail, a screenshot of a screenshot, or a JPEG that has already broken text into blocks will look soft at 2×. At 4× and 8× you are mostly enlarging that reconstruction. Heavy noise can be mistaken for texture.

Start from the largest original you have. If 2× still looks muddy in the compare slider, stop there instead of keeping a bigger version of the same softness. Clean a stray mark or cut out the subject before you enlarge if those pixels should not be reconstructed.

Free export, full file, and the next step

The free 2× export is a compressed WebP, or JPEG if WebP is unavailable, with the long edge capped at 1280 pixels. Full-resolution 2×, 4×, and 8× use credits. You can run 2 tests per day at 2× with no card. Sign in with Google for 2 credits, then buy credits if you need more full-size exports.

After you enlarge, compress a web copy, crop it, cut out the subject, or erase a stray mark. Remove an object or the background first when those pixels should not be rebuilt at a larger size.

Sharper files when the photo is too small

Enlarge catalog shots, portraits, and scans with AI — 2× is free, 4× uses credits. Not a blurry stretch.

Compare before you save. No watermark. Cut out the subject or compress the result next.

Frequently asked questions

Formats, 2× vs 4×, and what to expect.

JPG, JPEG, PNG, and WEBP up to 20 MB. The free 2× export is a WebP, or JPEG if WebP is unavailable, with the long edge capped at 1280 pixels. Full-resolution 2×, 4×, and 8× keep the enlarged file and use credits.

Same AI — 2× or 4× already selected.

Cut out, compress, or crop after you enlarge.

Blog

See more articles →

Aug 20, 2026

How to upscale an image without it looking blurry

Upscale your image

Free 2× preview — no account. A Buy credits unlocks full 2×, 4×, and 8×.