Convertir n'importe quelle image en Base64 - Intégrer dans HTML, CSS ou e-mails

Need to embed a small image directly in your code without an external file? Convert it to Base64 in one click. No upload, no server.

Pourquoi convertir des images en Base64 ?

Base64 data URIs let you embed images directly in HTML, CSS, or email templates. This eliminates external HTTP requests, prevents broken images if a file is moved, and works in environments where you cannot host files (email signatures, single-file HTML demos, inline CSS).

Quand ne devriez-vous PAS utiliser Base64 ?

Base64 increases file size by roughly 33%. For large images, this bloats your HTML and slows page load. It is best reserved for small icons, logos under 5KB, or situations where a single self-contained file is required. The tool warns you if your image exceeds 5MB.

Comment ça marche ?

Drag and drop or click to select an image. The tool reads it locally using your browser's FileReader API, encodes it to Base64, and gives you three copy options: raw Base64, full data URI, or a CSS background-image rule. The image never leaves your device.

Pourquoi optimiser les images avant de les partager en ligne ?

High-resolution photos from modern smartphones can easily exceed 5-10 MB per image. These large files slow down email delivery, exceed social media upload limits, and consume excessive bandwidth. Our image optimization tools compress, resize, and convert your photos directly in the browser.

Image files also contain EXIF metadata including GPS coordinates, camera model, and timestamps. Our tools strip this sensitive information while preserving image quality, ensuring your privacy when sharing photos online.

Formats d'images pris en charge

We support all major image formats: JPG, JPEG, PNG, WebP, HEIC, and TIFF. Whether you need to compress photos for email, resize images for social media, convert HEIC to JPG for Windows compatibility, or embed images as Base64 in HTML — everything happens locally in your browser.

Comment utiliser nos outils d'image

1. Click the tool button above to launch the image utility
2. Upload one or multiple images by dragging them into the browser
3. Adjust compression level, dimensions, or conversion settings
4. Download your optimized images instantly — no upload to any server

La qualité de l’image sera-t-elle affectée ?

Our compression algorithms use intelligent quality optimization. You can choose between lossy compression (smaller files, minimal quality loss) for web sharing, or lossless compression (preserves 100% quality) for archival purposes. The choice is yours, and everything stays private.