Image et médias

PNG, JPEG, WebP, SVG via Canvas. Fichiers non téléversés. Transparence et EXIF sont signalés sur chaque page.

What stays local

PNG vers JPEG aplatit l’alpha. JPEG vers PNG ne ramène pas le détail perdu. Gardez un fichier maître. Le raster SVG dépend des polices installées.

L’ASCII art est un jouet, pas de l’OCR. N’en remplissez pas un blog : contenu pauvre pour lecteurs et crawlers.

Flatten PNG transparency onto a white JPEG for email, Word, and CMSes that still reject PNG.

Wrap a JPEG as PNG without restoring discarded photo detail—use when a printer or editor wants PNG.

Re-encode JPEG photos as WebP for smaller hero images on modern sites. Another lossy pass—keep a master file.

Keep PNG alpha in a smaller WebP for UI icons and logos. Check edges if the encoder fringes transparency.

Export a WebP still as JPEG when a kiosk or older Office build cannot open WebP. Animation and alpha are dropped.

Decode a WebP still into PNG for editors that lack WebP, keeping alpha when the source had it.

Rasterize SVG with fonts installed on this device. Missing typefaces drop out of the PNG; scripts are not a sanitizer.

Pack a square PNG into a multi-size ICO favicon. Hairline logos vanish at 16×16—start from a simple 256px mark.

Turn a short banner or a photo into ASCII characters. This is a visualization, not OCR—it will not read text in a screenshot.

Generate QR codes for URLs, text, and notes.

Free online barcode generator: create CODE 128, CODE 39, EAN-13, UPC-A, ITF-14, and QR codes.