100% en el navegador y privado

Calculadora de Relación de Aspecto

Client-Side Sandbox
100% In-Browser Privacy All computations and file processing run strictly in your browser. Zero server data uploads.

Calculate letterbox, pillarbox, and center-crop dimensions for 9:16 Reels/TikTok, 1:1 Instagram, and generate copyable FFmpeg crop filters.

Social Video Cropping & FFmpeg Filter Generator

Calculate letterbox, pillarbox, and center-crop dimensions for 9:16 Reels/TikTok, 1:1 Instagram, and generate copyable FFmpeg crop filters.

Crop Geometry Specifications
Crop Width
608 px
Crop Height
1080 px
Offset X (Left)
656 px
Offset Y (Top)
0 px
Estándares verificados
Resultados precisos y deterministas Probado según especificaciones oficiales para obtener resultados reproducibles y fiables.

Cómo usar esta herramienta

  1. Select or drag and drop your image file into the upload zone above.
  2. Adjust compression quality, dimensions, or filters using interactive controls.
  3. Review the real-time visual canvas and click Download to save your optimized image.

Formatos admitidos, límites y privacidad

Entradas y límites: Browser client-side processing limits apply (e.g. max recommended image size 25MB).

Cero recopilación de datos: Esta herramienta se ejecuta al 100% dentro del motor JavaScript del navegador del cliente. Ninguna pulsación de teclas, valores, archivos o resultados calculados se almacenan o transmiten a ningún servidor remoto.

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