Image Upscaler
Enlarge your images 2×, 3× or 4×, with sharpening, in bulk.
Drop in your JPG, PNG, WebP, GIF, BMP or AVIF images and make them bigger in one go. Choose 2×, 3× or 4×, add a little sharpening to bring edges back, and keep the original format or switch to JPG, PNG or WebP. Add up to 50 files at once, download them one by one or as a ZIP. Everything runs in your browser, so nothing is uploaded. Free, with no sign-up and no watermark.
No Hidden Fees Ever
With Sharpening Control
Files Stay in Your Browser
Up to 50 Files at Once
Drop images here or browse
JPG, PNG, WEBP, GIF, BMP and AVIF images, up to 50 files, 100 MB each. You can also paste with Ctrl+V.
A 1000 × 800 px image becomes 2000 × 1600 px at 2×. Very large results are reduced automatically to fit your browser’s memory.
Enlarging softens edges, so a little sharpening brings them back. Use Off for pixel art or very clean graphics. Smooth scaling can’t invent detail that isn’t in the original.
Keep the original format, or switch while you upscale. PNG is lossless, so its files get large at 4×.
Applies to JPG and WEBP output. Lower quality makes smaller files. 85–92% looks identical for most photos.
JPG can’t store transparency, so transparent areas are filled with this colour.
Private by design: your images are processed in your browser and never uploaded. Protected by Cloudflare Turnstile.
Why Upscale Images?
To upscale an image, enlarge it by 2×, 3× or 4× and add light sharpening to keep edges crisp. Teasoft's Image Upscaler does this in your browser for up to 50 images at once: add your files, pick the scale and sharpening, click Upscale images and download the results. Smooth scaling makes an image bigger but can't invent detail that isn't there, so 2× works best and very small or blurry images will still look soft.
Sometimes an image is simply too small: a logo that has to fill a banner, a product photo that needs to meet a minimum size, a screenshot for a slide, or an old picture you want on a larger screen. Upscaling gives the image more pixels, so it fits the space or the upload requirement.
It helps to know what upscaling does. The tool smoothly scales the image up and then optionally sharpens it, because enlarging naturally softens edges. That makes the picture bigger and keeps edges looking clean, but it can't recover detail that was never captured. A tiny, blurry or heavily compressed photo will be larger afterwards, but not truly sharper. Results are best with modest enlargements and with clean images such as logos, graphics and screenshots.
Common reasons to upscale images:
- A website, store or marketplace requires a minimum image size.
- A logo, icon or graphic needs to fill a larger area.
- You want a small photo to look better on a bigger screen or in a slide.
- You are preparing an image for printing and need more pixels.
- You want to enlarge a screenshot or illustration for a document or poster.
- You have a batch of small images to bring up to the same size.
What each setting does:
| Setting | What it does | When to use it |
|---|---|---|
| Upscale by | Multiplies the width and height by 2, 3 or 4. A 1000 × 800 px image becomes 2000 × 1600 px at 2×. | 2× for most images. 3× and 4× only for small images where softness is acceptable. |
| Sharpening | Off, Light, Medium or Strong. Brings back edge crispness lost in enlarging. | Light or Medium for photos. Off for pixel art and very clean graphics. |
| Save as | Keeps the original format, or switches to JPG, PNG or WebP. | PNG for graphics, JPG or WebP for photos. PNG files get large at 4×. |
| Quality | Controls JPG and WebP output. Default is 92%. | Keep 85–92% for photos that must look sharp. |
| Background | Fills transparent areas when saving as JPG. | Only when saving a transparent image as JPG. |
Good to know
- Upscaling doesn't add real detail. The result has more pixels, but no new information. Text in a blurry photo stays blurry, and faces don't become sharp.
- Smaller jumps look better. 2× usually looks clean. At 4× the softness is easier to see, so use it for small images or for images that will be viewed from a distance.
- Very large results are limited. If the enlarged image would be too big for your browser's memory, the tool reduces it automatically, so a huge image at 4× may come out smaller than 4×.
- Files get bigger. More pixels mean larger files, especially as PNG. Compress the results afterwards if size matters.
What You Can Do With This Upscaler
- Enlarge by 2×, 3× or 4×. A 1000 × 800 px image becomes 2000 × 1600 px at 2×.
- Adjust the sharpening. Choose Off, Light, Medium or Strong to bring back edge crispness after enlarging, or turn it off for pixel art and clean graphics.
- Switch format while you upscale. Keep the original format, or save as JPG, PNG or WebP.
- Control quality. For JPG and WebP output, the slider starts at 92%. Lower values make smaller files.
- Transparency handled. Keep it with PNG or WebP, or choose a background colour to fill transparent areas when saving as JPG.
- Upscale in bulk. Add up to 50 files at once, each up to 100 MB, and download them all as one ZIP.
- Private by design. Files are processed in your browser and never uploaded to a server, which matters for personal photos, IDs and client work.
- Add files your way. Drag and drop, browse, or paste with Ctrl+V.
- No sign-up, no watermark, no fees.
- Works on any device. Windows, Mac, Linux, Android and iPhone, in any modern browser.
Which Image Tool Should I Use?
Use the Image Upscaler to make existing pixel images bigger. If your artwork is a vector (SVG) or a PDF, don't upscale a picture of it: convert it at a larger size instead and it stays perfectly sharp. If you want smaller dimensions, use the Image Resizer.
How to Upscale Images (3 Steps)
Add your images
Drag and drop your files, click browse, or press Ctrl+V to paste. You can add up to 50 JPG, PNG, WebP, GIF, BMP or AVIF files, each up to 100 MB.
Choose scale and sharpening
Open Settings. Pick 2×, 3× or 4×, then choose a sharpening level. Light or Medium suits most photos. Choose Off for pixel art and very clean graphics. Decide whether to keep the original format or save as JPG, PNG or WebP.
Upscale and download
Click Upscale images, check the results at full size, then save each file or use Download to get everything in one ZIP.
Tip: zoom in on the result before using it. Softness and edge halos show up at 100% zoom, and a lower scale or sharpening level often looks better.
Which Settings Should I Use?
| Your image | Scale | Sharpening | Save as |
|---|---|---|---|
| Photo that is a bit too small | 2× | Light or Medium | Same as original, or JPG/WebP at 85–92% |
| Small photo for a bigger screen or slide | 2×–3× | Medium | JPG or WebP |
| Very small or blurry photo | 2× (expect softness) | Light | JPG or WebP |
| Screenshot or UI graphic | 2× | Light | PNG |
| Logo or flat graphic (raster) | 2×–4× | Off or Light | PNG |
| Pixel art | 2×–4× | Off | PNG |
| Old, low-quality or heavily compressed image | 2× | Light (strong sharpening exaggerates artefacts) | JPG or WebP |
These are starting points, not guarantees. Check the result and adjust. Strong sharpening can create bright halos and exaggerate compression noise, so use it sparingly.
How big do I need it for printing?
Print quality depends on pixels. A common rule of thumb is 300 pixels per inch at the printed size:
| Print size | Pixels needed at 300 PPI |
|---|---|
| 4 × 6 in | 1200 × 1800 px |
| 5 × 7 in | 1500 × 2100 px |
| 8 × 10 in | 2400 × 3000 px |
| A4 (8.27 × 11.69 in) | About 2480 × 3508 px |
If your image is much smaller than that, upscaling will meet the pixel count but not add real detail, so prints can still look soft. Smaller prints or a viewing distance of a few feet are more forgiving.
What about increasing DPI?
DPI (or PPI) is a label stored in the file, not extra detail. What matters for sharpness is the pixel dimensions, which is what this tool increases.
Upscale, resize or convert?
| Choose | When |
|---|---|
| Image Upscaler (this tool) | A raster image (JPG, PNG, WebP and so on) needs more pixels. |
| SVG to PNG | The artwork is a vector (SVG) and you want a sharp, larger PNG. |
| PDF to PNG | The source is a PDF and you want pages as sharp images at 150 or 300 DPI. |
| Image Resizer | You need smaller dimensions, or an exact width or height. |
Tips for upscaling
- Start from the largest, cleanest version of the image you have, not a copy that has already been compressed or resized.
- Keep the original files until you've checked the enlarged versions.
- Don't upscale an image twice. One pass at the scale you need looks better than 2× followed by 2×.
- Save graphics as PNG and photos as JPG or WebP. PNG at 4× can be very large.
- If you only need the picture to be sharper rather than bigger, use Light sharpening at 2×.
Frequently Asked Questions
How do I upscale an image?
Open Teasoft's Image Upscaler, add your images, choose 2×, 3× or 4× and a sharpening level, click Upscale images and download the results individually or as a ZIP.
Can I enlarge an image without losing quality?
You can make it bigger, but you can't add detail that was never there. Smooth scaling with light sharpening keeps edges clean at 2×, but a small or blurry image will still look soft when enlarged. For the best results, start from the largest original you have.
Is this an AI upscaler?
No. It enlarges images with smooth scaling and optional sharpening, all in your browser. It doesn't generate new detail the way AI upscalers do, so results are cleaner and larger but not magically sharper.
Which scale should I choose: 2×, 3× or 4×?
Use 2× for most images, since it looks cleanest. Choose 3× or 4× only for small images, graphics or images that will be viewed from a distance. Very large results are reduced automatically to fit your browser's memory.
What does the sharpening setting do?
Enlarging softens edges, so sharpening brings some crispness back. Light or Medium suits most photos. Strong can create bright halos and exaggerate compression noise. Choose Off for pixel art and very clean graphics.
Why does my upscaled image still look blurry?
Upscaling can't recover detail that isn't in the original, so a small, blurry or heavily compressed image stays soft. Try a lower scale, light sharpening, or a larger original if you have one.
Can I upscale a logo or icon?
Yes, if it is a PNG or JPG, at 2× to 4× with sharpening Off or Light. If you have the original as an SVG, use Teasoft's SVG to PNG converter instead: it redraws the vector at 1× to 4× size, so edges stay perfectly sharp.
How do I increase image resolution or DPI?
Increase the pixel dimensions, which is what this tool does. DPI is only a label in the file and doesn't add detail by itself. For printing, aim for about 300 pixels per inch at the printed size.
Does upscaling make the file bigger?
Yes. More pixels mean a bigger file, especially PNG. At 4× a PNG can be very large. Save photos as JPG or WebP, or compress the results afterwards with Teasoft's Image Compressor.
What is the difference between upscaling and resizing?
Upscaling enlarges an image by 2×, 3× or 4× and sharpens it to compensate for softness. Resizing sets exact dimensions or a percentage, usually to make an image smaller. Use the Image Resizer when you need a specific size.
What happens to transparent backgrounds?
They are kept when you save as PNG or WebP. JPG can't store transparency, so transparent areas are filled with the background colour you choose.
Which formats can I upscale?
JPG, PNG, WebP, GIF, BMP and AVIF, up to 50 files per batch and 100 MB each. You can keep the original format or save as JPG, PNG or WebP. For SVG use SVG to PNG, and for PDF use PDF to PNG.
How many images can I upscale at once?
You can add up to 50 files in one batch, each up to 100 MB.
Are my files uploaded to a server?
No. Upscaling happens in your browser, and your files are never uploaded.
Can I upscale images on my phone?
Yes. The tool works in the browser on Android, iPhone, tablets and computers. You do not need to install an app. Very large images may be reduced automatically to fit your device's memory.
Is the Image Upscaler free?
Yes. It is free, with no sign-up, no watermark and no hidden fees.
About Teasoft's Image Upscaler
Teasoft's Image Upscaler is a free browser-based tool that makes your images bigger. Add JPG, PNG, WebP, GIF, BMP or AVIF files, enlarge them 2×, 3× or 4×, choose a sharpening level, and download the results one by one or as a ZIP of up to 50 files. You can keep the original format or switch to JPG, PNG or WebP while you upscale.
It is made for website owners, online sellers, designers, students, office workers and everyday users who need small images to fit larger spaces, meet minimum size requirements or look better on bigger screens.
Upscaling runs locally in your browser. Your files are not sent to a server, so they stay on your device from the moment you add them until you download the enlarged images.