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Change JPG size

Imposta larghezza e altezza esatte per il tuo file JPG, oppure scala in percentuale.

Risposta rapida

To resize a JPG, upload it to ezimagetools.com and type the width you need in pixels, or drag the percentage slider. With the aspect-ratio lock on, the height fills itself in so the picture is never stretched. Resizing a JPG re-encodes it, so it pays to resize and compress in one pass rather than saving the same JPG over and over — each save discards a little more detail than the last, and that loss never comes back.. It is free and needs no account.

In sintesi

Formati accettati
JPG files, up to 20 at a time
Ottieni
The same picture as a JPG at your chosen width and height
Dimensione massima del file
50 MB per file
File per lotto
Fino a 20 alla volta
Prezzo
Gratuito, senza limiti al numero di immagini elaborate
Account necessario
No: non è prevista alcuna registrazione
I tuoi file vengono eliminati
Automaticamente, entro un’ora dall’elaborazione

Aggiornato 2026-08-31

Come ridimensiona jpg

  1. Add your JPG files

    Tap the upload box and choose the JPG pictures you want to resize.

  2. Pick pixels or percentage

    Type the width you need, or drag the slider to scale the whole image.

  3. Keep the shape

    Leave the aspect-ratio lock on and the height fills in for you, so nothing looks stretched.

  4. Resize and download

    Press Resize, then save the new JPG files.

What a JPG is

JPG (also written JPEG) is the format almost every camera and website uses. It saves space by discarding the detail your eye is least likely to notice, which is why it cannot store transparency and why every re-save costs a little quality.

Pixels or percentage?

Use pixels when something else sets the rules — an upload form asking for 1200 pixels wide, or a print shop asking for an exact size. Use percentage when you just want the picture smaller and do not care about the exact number.

Domande frequenti

Does resizing a JPG reduce its quality?

Resizing a JPG re-encodes it, so it pays to resize and compress in one pass rather than saving the same JPG over and over — each save discards a little more detail than the last, and that loss never comes back.

How do I resize a JPG without stretching it?

Leave the aspect-ratio lock switched on and change only one dimension — the other follows automatically. Stretching happens when the width and the height are changed by different amounts, which the lock makes impossible.

What size should a JPG be for a website?

Match the size it will actually be displayed at, then double it if you are targeting high-density phone screens. A full-width banner is usually 1600 to 2000 pixels wide; anything inside a column rarely needs more than 800. Sending a 4000-pixel image to a 400-pixel slot wastes your visitor's data and nothing else.

Can I enlarge a JPG without it going blurry?

Not really. Enlarging cannot add detail that was never captured, so an upscaled picture always looks softer than the original. Start from the largest copy of the image you have rather than growing a small one.

What is the difference between resizing and compressing a JPG?

Resizing changes how many pixels the picture has. Compressing changes how many bytes those pixels take to store. Resizing to smaller dimensions also cuts the file size, and doing both — resize first, then compress — gives the smallest result that still looks right.

Is it safe to resize JPG files online?

Yes. Your file is processed on our server and deleted automatically within one hour. We never look at it and you do not need an account.

Your images are processed on our server and deleted automatically within one hour. We never look at them and you do not need an account.

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