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Gratis PNG Storleksändring

Är din PNG-fil lite för stor? Oavsett om du behöver ändra storlek på en PNG-bild online utan att installera något, eller vill göra det gratis, löser Image Resizer AI det på sekunder. Ladda upp din fil, ange måtten du vill ha och ladda ner. Enkelt.

Behöver du ändra storlek på en PNG för en hemsida, presentation eller appikon? Inga problem. ImageResizerAI är det självklara sättet att ändra storlek på PNG-filer direkt i din webbläsare. Ingen registrering. Inget vattenmärke. Bara din bild, anpassad.

Fact: PNG uses lossless compression, which preserves every pixel of the original image. That makes it ideal for graphics, logos, screenshots, and images that require transparent backgrounds.

When Should You Resize a PNG Image?

Resizing a PNG is useful in many situations. Developers often need smaller PNG icons for mobile apps, designers resize transparent logos for websites, ecommerce sellers adjust product badges, and students optimize screenshots before uploading assignments. Smaller PNG files also load faster on websites, improving page speed and creating a better experience for visitors.

PNG vs JPG vs WebP – Which Format Should You Choose?

Feature PNG JPG WebP
Transparency Support ✅ Yes ❌ No ✅ Yes
Best For Logos, screenshots, graphics Photos Modern websites
Compression Type Lossless Lossy Lossy & Lossless
Typical File Size Larger Smaller Usually the smallest
Best Choice When Image quality matters most Sharing photographs Improving website performance

Need More Than Just PNG Resizing?

If you are working with multiple image formats, Image Resizer AI offers dedicated tools for every common workflow. You can resize JPG images online without losing quality, change JPEG image dimensions online, or resize WebP images for websites and blogs. Have dozens of photos to resize at once? Try our bulk image resizer for multiple images. If your goal is meeting a specific upload requirement instead of changing dimensions, our resize image to exact KB size tool is often the better option. You can also explore every browser-based editing tool from the Image Resizer AI homepage.

Frequently Asked Questions

Ja, du kan skriva in vilka mått du vill. Oavsett om det är 512×512 för en app-ikon, 1080×1080 för Instagram, eller något helt eget – skriv bara in siffrorna.
Ja, 100 % gratis utan villkor. Du behöver inte skapa konto, skriva in e-post eller betala. Ladda bara upp din PNG, välj storlek och ladda ner.
Om du gör bilden mindre behålls skärpan och kvaliteten. Gör du den mycket större kan den bli suddig. Som tumregel bör du inte förstora den mer än 2x originalstorleken.
Den förblir exakt som den är. En av de stora fördelarna med PNG är just stöd för transparens, och storleksändring påverkar inte detta. Det transparenta förblir transparent.
Helt säkert. Din bild bearbetas direkt i webbläsaren på din enhet och skickas aldrig till någon server. Ingen annan kan se den, och den sparas inte.
Yes. PNG supports an alpha channel, which stores transparency information separately from the visible image. As long as you save the resized image in PNG format, transparent backgrounds, soft shadows, and smooth edges remain intact. Transparency is only lost if you convert the image to a format such as JPG, which does not support transparent backgrounds.
The best dimensions depend on where the image will be used. Website graphics should usually match the actual display size instead of being much larger. App icons often have fixed size requirements, while email signatures and blog graphics typically need relatively small dimensions. A practical rule is to resize the image as close as possible to its final display size. Using oversized images increases page load times and wastes storage without improving visual quality.
Yes. If you have many PNG files that require the same dimensions, using a batch resizing tool is much faster than processing them individually. This approach is particularly useful for ecommerce product images, website assets, presentations, and documentation because every image can be resized consistently in a single workflow.
Screenshots usually contain sharp text, interface elements, icons, and solid colours. JPG compression is designed for photographs and often introduces visible compression artifacts around text and straight lines. PNG stores these details without quality loss, which is why screenshots, diagrams, and software interfaces remain much clearer when saved as PNG. If file size is a concern, resizing the PNG is generally a better solution than converting it to JPG.
It depends on the upload requirements. If the platform specifies exact image dimensions, resize the PNG to those dimensions first. If the platform only limits the maximum file size—for example, under 200 KB—using a tool that reduces an image to a specific KB size is usually the better option. In many situations, resizing the image first significantly lowers the file size, and any additional optimization needed to reach the required KB limit becomes much easier.