Is Shrink really 100% free?

Yes, 100% free with no hidden costs. No signup, no email, no credit card, no usage limit. You can compress unlimited images, even hundreds at once, all for free.

Are my images uploaded to a server?

No. All compression happens in your browser using WebAssembly. Your images never touch any server, not even ours. You can even use Shrink offline after loading the page once. This makes it safer than cloud-based alternatives for sensitive images.

Is there a limit on the number of images?

No. Drop a hundred images at once if you want. The only limit is 20MB per file. We process them in parallel using a Web Worker pool, then download everything as a single ZIP.

How much can images be reduced?

Typical reduction is 50-80%. Screenshots and UI images with large areas of solid color can reach 80% or more. Photos usually reduce 40-65%. The exact reduction depends on the image content, not just the format.

Which formats are supported?

PNG, JPEG, and WebP. The output keeps the same format as the input — we never convert between formats. PNG uses libimagequant (the same engine as TinyPNG), JPEG uses MozJPEG, WebP uses libwebp.

Why should I reduce image size for my website?

Smaller images load faster. Google uses page speed (Core Web Vitals) as a ranking factor, and images are usually the biggest bottleneck. Reducing your images improves Largest Contentful Paint (LCP), reduces bounce rate, and boosts SEO. Typical sites see 1-3 seconds faster load times after reducing images.

Why reduce image size before sending by email?

Gmail caps attachments at 25MB. A single uncompressed photo can easily be 8-15MB, so you can only attach 2-3 photos per email. Reduced images let you send entire albums in one email. The recipient also gets them faster, and your sent folder stays smaller.

Will the reduced images look different?

PNG and WebP reduction uses smart quantization that preserves the visual quality. Most people cannot tell the difference at default settings, even when zooming in. JPEG uses MozJPEG at quality 80, which is the sweet spot for perceived quality vs file size.

Is Shrink as good as TinyPNG?

Yes for PNG — we use the same engine (libimagequant by ImageOptim), with the same zlib level 9 final compression that zopflipng uses. For JPEG we use MozJPEG (similar to Squoosh), and for WebP we use libwebp. The compression quality is on par with the best paid tools.

Shrink. Reduza o tamanho das suas imagens. Grátis, sem limite.

Reduza até 80% do tamanho. PNG, JPEG, WebP. Sem upload, sem login. 100% no seu navegador.

100% grátis
Sem limite de quantidade
Sem upload — privado
Sem cadastro
Sem perda visível de qualidade

Arraste suas imagens

ou clique para selecionar

PNG, JPEG, WebP · até 20 MB · quantos quiser

Por que comprimir imagens?

Imagens menores significam mais velocidade, menos armazenamento e compartilhamento sem fricção.

Páginas web mais rápidas

Imagens são o principal gargalo de performance. Comprimir reduz o Largest Contentful Paint (LCP), melhora o ranking no Google e diminui bounce rate.

Emails que cabem no limite

Gmail limita anexos em 25MB. Uma foto não comprimida tem 8-15MB — você cabe só 2-3. Comprimido, manda álbuns inteiros em um email.

Mensagens sem compressão automática

WhatsApp, Telegram e Discord comprimem imagens automaticamente (perdendo qualidade). Envie a versão já otimizada e mantenha a nitidez.

Menos armazenamento

Reduza o uso de disco, backup e cloud (Google Drive, iCloud, Dropbox). Em 1.000 fotos a 2MB cada, comprimir 50% libera 1GB.

Economiza dados do celular

Em 4G/5G, uma foto não comprimida consome o plano inteiro. Comprimida, você cabe 5x mais fotos no mesmo pacote de dados.

Menos bandwidth, menos custo

Cloudflare, AWS, Vercel — cada byte economizado é centavo poupado. Sites com 1 TB/mês de imagens podem economizar centenas de reais em hosting e CDN.

Como funciona

Solte suas imagens

Arraste e solte arquivos PNG, JPEG ou WebP. Ou clique para selecionar. Sem limite de quantidade.
Compressão automática

O processamento roda direto no seu navegador via WebAssembly. Sem upload. Cada arquivo mostra o tamanho original, o comprimido e a % economizada.
Baixe tudo em um ZIP

Um clique baixa todos os arquivos comprimidos em um único ZIP, com os nomes originais preservados.