Desenhar em imagem online
Anote e desenhe em suas imagens com lápis ou linhas retas. Gratuito, privado e instantâneo — tudo roda no seu navegador.
100% Privado — Seus arquivos nunca saem do seu dispositivo. Todo o processamento acontece no seu navegador.
Solte sua imagem aqui
ou clique para selecionar — JPG, PNG, WebP suportados
4 px
Resultado
Como funciona a ferramenta de desenho?
Esta ferramenta usa a API Canvas integrada ao seu navegador para desenhar traços livres ou linhas retas diretamente na sua imagem. Escolha sua cor e espessura, depois desenhe. Ao exportar, o desenho é renderizado na resolução original da imagem — sua imagem nunca é enviada para nenhum servidor.
Tips for Drawing on Images
- Choose the right brush size — Use a thin brush for precise annotations and a thicker brush for highlighting or redacting areas.
- Use contrasting colors — Pick a color that stands out against the image background for clearly visible annotations.
- Use the undo feature liberally — The undo button lets you step back through your drawing history for free experimentation.
- Add text annotations for clarity — Choose a font size large enough to read at the image's intended display size.
- Redact sensitive information carefully — Use solid-color rectangles to completely cover sensitive data with no gaps.
- Use shapes for professional annotations — Rectangles and circles draw attention more cleanly than freehand circles.
When to Draw on Your Images
- Bug reports and feedback — Annotate screenshots with arrows, circles, and text to clearly indicate UI issues or bugs.
- Redacting sensitive information — Cover personal data in screenshots before sharing them publicly or in support tickets.
- Educational content — Add labels, arrows, and explanatory text to diagrams for tutorials and presentations.
- Design review markup — Draw directly on design mockups to indicate changes during the review process.
- Social media content creation — Add fun doodles, text overlays, or emphasis markers to photos for social media.
Perguntas frequentes
Minha imagem está segura?
Sim. Sua imagem nunca sai do seu dispositivo. Todo o desenho e exportação acontecem localmente no seu navegador usando a API Canvas. Nenhum dado é enviado para nenhum servidor.
Posso usar esta ferramenta offline?
Sim. Uma vez que a página é carregada, você pode usar a ferramenta de desenho sem conexão com a internet. Tudo funciona no seu navegador.
What drawing tools are available?
ImgLab's draw tool includes a freehand brush with adjustable size and color, shape tools (rectangles, circles, lines, arrows), and a text tool for adding typed annotations. You can customize the color, stroke width, and opacity for each tool to match your needs.
What format is the annotated image exported as?
You can export your annotated image as JPEG, PNG, or WebP. PNG is recommended if your annotations include transparency or if you need pixel-perfect text rendering. JPEG works well for photos with simple annotations, and WebP provides the best file size.
Can I undo or redo my drawings?
Yes! The draw tool supports full undo and redo functionality. Each stroke, shape, or text element is tracked separately, so you can step back through your drawing history one action at a time. This makes it easy to experiment without fear of ruining your image.
Does drawing on an image change its resolution?
No — the exported image maintains the same resolution as the original. Your drawings are rendered at the image's native resolution, ensuring annotations look sharp and clear regardless of image size. The drawing canvas scales to fit your screen but always outputs at full resolution.