Online Redimensionador de imágenes
Quickly resize images with proportional scaling or custom dimensions.
Arrastra imágenes aquí
Supports JPG, PNG, WebP and other formats
Why Use the Redimensionador de imágenes
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.
Fast Processing
Leveraging Canvas technology for millisecond-fast processing.
Procesamiento por lotes
Resize multiple images simultaneously to improve your workflow.
How to Redimensionar imágenes 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.
Preguntas frecuentes
¿Cambiar el tamaño de una imagen afecta su calidad?
Reducir el tamaño conserva bien la calidad porque los píxeles excesivos se combinan. Aumentar el tamaño causa pérdida de calidad porque el software tiene que inventar píxeles. Siempre comience con la imagen más grande disponible para ampliar.
¿A qué dimensiones puedo cambiar el tamaño de mi imagen?
Puede ingresar cualquier ancho y alto en píxeles. La herramienta mantiene la relación de aspecto por defecto. Preajustes comunes: 1080×1080 (Instagram), 1920×1080 (HD), 800×800 (productos), 1200×630 (redes sociales).
¿Se conservarán los metadatos después de cambiar el tamaño?
Los metadatos básicos pueden eliminarse ya que la herramienta regenera la imagen. Para la mayoría de usos web no es un problema. Si necesita datos EXIF, guarde una copia del original antes.
¿Cuántas imágenes puedo redimensionar a la vez?
No hay límite. Suba múltiples imágenes y redimensiónelas todas a las mismas dimensiones en una sola operación. Cada imagen se procesa independientemente.