Online Image Resizer
Quickly resize images with proportional scaling or custom dimensions.
Arraste imagens aqui
Supports JPG, PNG, WebP and other formats
Why Use the Image Resizer
Precise Control
Set exact width and height values, with support for proportional scaling or custom dimensions.
Keep Proportions
Automatically maintain aspect ratio to prevent image distortion.
Processamento Rápido
Leveraging Canvas technology for millisecond-fast processing.
Batch Processing
Resize multiple images simultaneously to improve your workflow.
How to Resize Images Online Free
Drop Your Images
Click the upload area or drag images into the browser. This image resizer works with JPG, PNG, WebP, and other common formats. Upload multiple files for batch processing. A single photo or an entire collection — no problem. Everything stays local in your browser, private and secure. No file size limits either, so high-res camera shots are fine.
Set Dimensions and Preserve Proportions
Enter width and height values, or pick from presets like 1920x1080 (Full HD), 1280x720 (HD), 800x600, or 400x400 (square). The aspect ratio lock keeps images from distorting — enter one dimension and the other adjusts automatically. You can also change the output format at the same time, converting to JPG, PNG, or WebP while resizing. One tool, two jobs.
Download Resized Images
Each resized image shows its new dimensions and file size. Download individually or batch-save everything. High-quality resampling keeps images sharp and detailed. Ready for websites, social media, email campaigns — anywhere specific dimensions are required.
Image Resizing Tips
Sizing Images for Social Media
Each platform has its sweet spot. Instagram feed posts: 1080x1080 (square) or 1080x1350 (portrait). Twitter/X in-feed images: 1200x675. Facebook posts: 1200x630. LinkedIn shared links: 1200x627. Pinterest pins: 1000x1500 (2:3 ratio). Matching these exact dimensions means your content never gets awkwardly cropped or stretched. Better visuals, better engagement.
Resizing vs Cropping
They serve different purposes. Resizing scales the whole image up or down — you keep everything, just smaller or bigger. Cropping removes parts of the image to change composition or aspect ratio. Use resizing when you need to fit a layout without losing content. Use cropping when you want to reframe the shot or remove edge elements. For best results, crop first in a dedicated editor, then resize to your target dimensions.
Right Dimensions for Every Use Case
Website hero banners: 1920x1080. E-commerce product thumbnails: 800x800 to 1200x1200. Full product shots: 800x1200. Email newsletter images: 600px max width. YouTube thumbnails: 1280x720. Blog featured images: 1200x630. Using the right dimensions improves visual quality, cuts bandwidth waste, and makes your content look professional everywhere.
Perguntas Frequentes
Redimensionar uma imagem afeta sua qualidade?
Reduzir preserva bem a qualidade porque pixels excessivos são mesclados. Ampliar causa perda de qualidade porque o software precisa inventar pixels. Sempre comece com a maior imagem disponível para ampliar.
Para quais dimensões posso redimensionar minha imagem?
Você pode inserir qualquer largura e altura em pixels. A ferramenta mantém a proporção por padrão. Predefinições comuns: 1080×1080 (Instagram), 1920×1080 (HD), 800×800 (produtos), 1200×630 (redes sociais).
Os metadados serão preservados após o redimensionamento?
Metadados básicos podem ser removidos pois a ferramenta regenera a imagem. Para a maioria dos usos web não é problema. Se precisar de dados EXIF, salve uma cópia do original antes.
Quantas imagens posso redimensionar de uma vez?
Não há limite. Carregue várias imagens e redimensione todas para as mesmas dimensões em uma única operação. Cada imagem é processada independentemente.