Fully Browser-based

Image Format Convertisseur (Convert PNG/JPEG/WebP - Browser-based)

Q: "Is transparency preserved?"

"PNG/WebP preserves transparency. JPEG does not support transparency, so you can choose 'Blend with background color (White/Black/Personnalis?)' during conversion. (MDN Web Docs)"

Q: "WebP supported browsers?"

"WebP is widely supported by modern browsers. However, some older environments like old Safari may have limitations; if unsupported, a notification will appear on screen. (Can I Use)"

Q: "Does EXIF (Location info) remain?"

"When converting via browser Canvas, metadata (like EXIF) is generally lost. We explicitly note this for use cases requiring location data retention. (lists.whatwg.org)"

Q: "Are images sent to a server?"

"Non. This tool processes within the browser and does not upload externally (T?l?charger is triggered by your action)."

Q: "Does orientation change after conversion?"

"This may happen in some environments due to differences in EXIF Orientation interpretation. Try converting again in a different browser if necessary. (MDN Web Docs)"

Convert WebP→PNG / PNG→JPEG / JPEG→WebP instantly on your device (Non upload required)

PNG / JPEG / WebP

Batch Conversion

Local Processing

Transparency/Background Color

Free

Max 50 files / Total 100MB approx. Splitting recommended for large images.

Ajouter Images

PNG / JPEG / WebP

Ajouter by drag & drop or selection.

Drop images here

or select files

Supported Formats: PNG / JPEG / WebP Max 50 files / Total 100MB approx.

Images are not uploaded. Conversion happens within this device.

Converted data is not sent externally until you download it.

Some formats may not be supported in older environments (See FAQ).

Conversion Param?tres (Basic)

Just choose output format and quality.

Sortie Format

Quality

Balance between size and quality (Check preview)

Background Color (for JPEG)

White Black Personnalis? Personnalis? Color

JPEG does not support transparency. Transparent areas will be blended with the background color.

Ouvrir Advanced Param?tres

Resize

Long Edge (px)

Width (px)

Height (px)

Keep Aspect Ratio

Only scales down if larger than original

Filename Rule

Suffix

Extension is automatically added matching output format

Metadata is usually not preserved (See FAQ)

Conversion Queue / R?sultats

T?l?charger while checking thumbnails and sizes.

Non images added yet

Please add via drag & drop or 'S?lectionner Files'.

FAQ

Is transparency preserved?

PNG/WebP preserves transparency. JPEG does not support transparency, so you can choose 'Blend with background color (White/Black/Personnalis?)' during conversion. (MDN Web Docs)

WebP supported browsers?

WebP is widely supported by modern browsers. However, some older environments like old Safari may have limitations; if unsupported, a notification will appear on screen. (Can I Use)

Does EXIF (Location info) remain?

When converting via browser Canvas, metadata (like EXIF) is generally lost. We explicitly note this for use cases requiring location data retention. (lists.whatwg.org)

Are images sent to a server?

Non. This tool processes within the browser and does not upload externally (T?l?charger is triggered by your action).

Does orientation change after conversion?

This may happen in some environments due to differences in EXIF Orientation interpretation. Try converting again in a different browser if necessary. (MDN Web Docs)

WebP to PNG Conversion (How to convert WebP back to PNG)

To convert WebP back to PNG, simply add WebP to this tool and set the output format to PNG.

WebP with transparency can be preserved in PNG. Useful for re-editing diagram assets or UI parts.

PNG JPEG Conversion (Remarque on Transparency)

PNG preserves transparency, but JPEG does not. Transparent areas are blended with a background color during conversion.

To maintain transparency, set the output format to PNG or WebP.

Benefits of Browser-based Image Format Conversion (Non Upload)

Since images are not sent to a server, it is easy to handle sensitive materials.

Non app installation required, enabling immediate conversion.