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Smart crop image online, free saliency-driven subject cropper

Drop a photo, pick an aspect ratio, and let the saliency model pick the most interesting rectangle. No dragging, no hand-tuning.

  • Aspect-ratio presets
  • Saliency-driven
  • Centred fallback when unsure
A portrait of a barista before and the same portrait cropped to a 1:1 square that keeps her face centred after.A portrait of a barista before and the same portrait cropped to a 1:1 square that keeps her face centred after.

Arraste para comparar, antes / depois

Visão geral

Cropping a portrait to a 1:1 thumbnail without chopping off the subject is the kind of fiddly task that eats five minutes for the price of a single image. Smart crop replaces the manual draggable rectangle with a saliency model: every candidate window scores by saturation, edge density, and skin-tone density, and the tool picks the window with the highest weighted score that matches your requested aspect ratio.

For portraits, product shots, and most photographs the tool reliably keeps the subject in frame and trims the dead pixels around it. For inputs without a clear focal point (abstract art, group photos, uniform-colour images) it falls back to the centred rectangle so the result is at least predictable.

The whole pipeline runs on our server because the saliency model needs native pixel access and the smartcrop algorithm is deterministic enough that we do not need to mirror it client-side. The upload is held only while we compute the bounds and emit the cropped file, then deleted. Nothing is saved.

Fluxo de trabalho

Como funciona

Três passos, normalmente em menos de cinco segundos.

  1. 1

    Upload an image

    Drop a JPG, PNG, WebP, or AVIF up to 25 MB.

  2. 2

    Pick an aspect ratio

    Choose 1:1, 4:5, 16:9, 9:16, 3:2, 2:3, or Custom (type your own width and height pair).

  3. 3

    Confirm

    The saliency model picks the rectangle that maximises subject coverage. The tool reports the chosen bounds so you can compare them to the source.

  4. 4

    Download

    The cropped image downloads with `-smart-cropped` appended to the original filename. Pick the output format (Same as source, JPEG, PNG, or WebP) before submitting.

Exemplos

Veja em ação

Arraste cada controlo para inspecionar o antes e o depois ao detalhe.

A family portrait keeps both subjects in frame when the tool picks a 1:1 window centred on the people.A family portrait keeps both subjects in frame when the tool picks a 1:1 window centred on the people.
A family portrait keeps both subjects in frame when the tool picks a 1:1 window centred on the people.
A product shot of running shoes crops to a square that keeps the shoe centred without trimming the laces.A product shot of running shoes crops to a square that keeps the shoe centred without trimming the laces.
A product shot of running shoes crops to a square that keeps the shoe centred without trimming the laces.
A wide food photograph trims to a square that keeps the bowl and basil sprig centred.A wide food photograph trims to a square that keeps the bowl and basil sprig centred.
A wide food photograph trims to a square that keeps the bowl and basil sprig centred.
Privacidade

A sua imagem desaparece quando termina

Smart crop runs on our server because the saliency model needs native pixel access. Your upload is held only while we compute the bounds and emit the cropped output, and is deleted the moment we send the file back. Nothing is saved, indexed, or trained on.

  • Processada em segundos
  • Nada é guardado
  • Sem conta associada
Experimente agora

Carregue uma imagem

Um clique. Sem registo. Tratamos do resto.

Recorte inteligente da imagem

Largue a sua imagem aqui ou clique para enviar
Arraste e largue, procure ficheiros ou cole a partir da área de transferência com Cmd+V
Calculado no nosso servidor
O recorte inteligente precisa de acesso aos pixels para o modelo de saliência, por isso corre no nosso servidor. O ficheiro enviado é apagado no momento em que devolvemos o resultado.

Precisa de processar mais do que uma imagem?

A versão gratuita Smart crop image online, free saliency-driven subject cropper processa uma imagem de cada vez. Um pacote de créditos permite até 50 imagens por lote, um único ZIP para descarregar e três predefinições nomeadas (Blog / Redes sociais / E-commerce). A partir de 5 EUR por 100 créditos. Pague uma vez, sem prazo de validade.

Ver pacotes de créditos
FAQ

Perguntas frequentes

Respostas às dúvidas mais comuns antes de experimentar uma ferramenta nova.

Quer citar ou partilhar?

Copie um resumo conciso em Markdown (título, descrição, FAQ, URL canónico e citação) pronto a colar num assistente de IA ou num documento.

Cite como

BouseMutton (2026). Smart crop image online [Web application]. https://bousemutton.com/smart-crop-image

Atualizado em: 2026-04-28