Redimensionar Imagem Pixels · Porcentagem · Escala · Preenchimento

Resize photos to exact pixels or by percentage without installing software. Lock the aspect ratio, scale to fit a canvas, or add padding when a platform wants a fixed box.

Sempre grátis Sem cadastro Sem marca d’água Sem limites Funciona no celular Exclusão automática 48 h

Solte uma imagem aqui ou clique para procurar

Até 10 imagens por lote (10MB cada). Baixe ou compartilhe, limpe a fila e comece o próximo lote quando quiser. JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, SVG, TIFF.

Meus Compartilhamentos Ativos

Compartilhamentos ativos são excluídos após 48 horas · salve até 50 MB

Carregando seus compartilhamentos ativos…

Compartilhamentos Ativos: —/50 MB

Como funciona

1

Enviar

Adicione a imagem que deseja redimensionar.

2

Escolher tipo

Escolha pixels para largura/altura exatas ou porcentagem para escalar proporcionalmente.

3

Definir dimensões

Informe o tamanho desejado e escolha ajuste por escala ou preenchimento.

4

Baixar

Salve a imagem redimensionada ou compartilhe um link.

When you should resize (not compress)

Use resize when a website, app, print shop, or social network asks for a specific width and height. Compressing alone reduces file weight but leaves the pixel dimensions unchanged — forms that reject “image too large” usually mean pixels, not kilobytes.

Pixels vs percent

Pixels are best when you know the target (for example 1080×1080 or 1920×1080). Percent is faster when you only need something half / 70% / double the original for a quick draft. Keep aspect ratio locked unless you intentionally need a stretch.

Fit modes that avoid ugly stretch

  • Scale — sizes the whole image to your width/height; may leave empty space if only one side is constrained.
  • Padding — keeps the full image visible and fills unused canvas with color or transparency (useful for logos and product shots).
  • Crop after resize — when a platform crops from the center, set the final ratio first with the crop tool, then export.

Quality tips

Downscaling usually stays sharp. Upscaling invents pixels and softens detail — enlarge only when a site refuses a small file, and prefer PNG/WebP for graphics with text. Soft export: JPG quality 80–90 for photos, PNG for screenshots with UI.

Privacy: preview runs in your browser. Choose Download to keep the file on your device, or Share for a temporary link (active shares auto-delete within 48 hours). See our privacy policy.

How to resize an image Online

Open the tool above, upload your image (JPG, PNG, WebP, HEIC, AVIF, and more), adjust the settings, and preview the result in your browser. When you are happy with the output, click Download to save it to your device or Share to get a temporary link. No account is required, and you can process até 10 imagens per batch.

Why use imageresize.cc for image resizing?

  • grátis and fast — sem cadastro, no watermarks, no daily caps on batches.
  • Private by default — preview and editing happen in your browser; files are only uploaded if you choose Share.
  • Works on any device — phone, tablet, or desktop with a modern browser.
  • Batch-friendly — queue até 10 imagens (10 MB each), export, then start your next batch.

    • Tips for Image Resizer — Change Image Dimensions Online

    Start from the highest-quality source you have, lock proporção when resizing for social or print, and download a copy before trying a different format.

    Need a different workflow? Browse our full tools directory for resize, compress, convert, crop, and social-media presets.

    Perguntas Frequentes

    Often yes — fewer pixels usually means a smaller file — but if you need a hard KB/MB limit, use Compress after you set the dimensions.
    Yes. Upload HEIC/HEIF, set the pixel size, then download as JPG or PNG if the destination does not accept HEIC.
    Set 1080×1080 (or the story/reel size you need), use padding or crop the subject manually so faces stay centered, then download.
    Up to 10 images per batch (10 MB each). Download or share, clear the queue, and start another batch anytime.
    Browser export creates a new image file; location and camera metadata from the original are typically not preserved — intentional for privacy on shared links.
    Você pode redimensionar imagens JPG, JPEG, PNG, WebP, AVIF, BMP, GIF, TIFF e SVG. A imagem redimensionada pode ser baixada no mesmo formato ou convertida para outro.
    Nosso redimensionador usa algoritmos de reamostragem de alta qualidade para preservar nitidez e precisão de cores. Para melhores resultados, evite ampliar imagens além de 2x o tamanho original, pois isso pode introduzir suavidade.
    Cada imagem pode ter até 10MB. Processe até 10 imagens por lote, depois exporte e comece o próximo lote quando quiser. Arquivos exportados ficam em Meus Compartilhamentos Ativos por até 48 horas.
    Yes. imageresize.cc is completely free with no signup, no watermarks, and no limits on how many batches you can run. Each batch supports up to 10 images (10 MB each).