Redimensionador de Imagens — Ferramenta online grátis
Redimensione imagens por pixels ou porcentagem
Redimensione imagens para qualquer dimensão. JPG, PNG, WebP suportados. Mantém a qualidade. Não navegador, sem cadastro.
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Free image resizer — by pixels or percent, aspect-ratio safe
Ferramentaolis Image Resizer changes image dimensions in your browser using the Canvas API. Input exact pixel dimensions or a percentage scale. Aspect-ratio lock keeps proportions correct automatically. Não upload to any server.
How to use this tool
- 1
Upload your image
Drop or pick a JPG, PNG, or WebP. The original dimensions will appear automatically.
- 2
Enter target dimensions
Type width, height, or a percentage. Aspect-ratio lock keeps proportions — toggle off to stretch.
- 3
Download the resized image
Canvas re-renders at the new size and gives you a download link. Quality is preserved for JPG/WebP output.
Common image sizes in 2026
- Hero banner — 1920×1080
- Blog featured / OG image — 1200×630
- Instagram post (square) — 1080×1080
- Instagram story — 1080×1920
- LinkedIn banner — 1584×396
- YouTube thumbnail — 1280×720
- Favicon — 512×512 (for modern browsers)
- Profile avatar — 400×400
Frequently Asked Questions
Does resizing reduce quality?
What resampling algorithm is used?
How is aspect ratio calculated?
Is my image uploaded anywhere?
What are common image sizes?
Can I resize multiple images at once?
Pontos-chave
- Image Resizer is a free, browser-based image tool — resize images by pixels or percentage.
- Não signup, no downloads, no file uploads — your data stays on your device.
- Works on desktop, tablet, and mobile. Install as a PWA for offline access.
How to Use Image Resizer
- Open the tool: Launch Image Resizer on Ferramentaolis — no account or download needed.
- Enter your data: Paste text, enter values, or select a file directly in your browser.
- Get instant results: Everything is processed locally — results appear immediately.
- Copy or download: Save your output or share it. Bookmark for quick access next time.
Image Resizer — Quick Facts
- Preço
- Grátis — sem limites, sem marca d’água, sem paywall
- Privacidade
- 100% no navegador — nenhum dado é enviado a servidores
- Plataforma
- Qualquer navegador moderno — desktop, tablet ou celular
- Categoria
- Image Ferramentas on Ferramentaolis
- Offline
- Works offline after first visit (Progressive Web App)
| Recurso | Detalhes |
|---|---|
| Ferramenta | Image Resizer |
| Categoria | Image |
| Cadastro necessário | Não |
| Upload de arquivo | Nenhum — processado no navegador |
| Suporte mobile | Totalmente responsivo |
| Custo | Grátis para sempre |
Why Use Image Resizer?
You should try Image Resizer for a quick, private way to resize images by pixels or percentage. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.
On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.