Kostenlos Online Image Resizer — Exact Width and Height in Pixels

Resize any image to exact pixel dimensions with our free online image resizer on XConverters. Enter width and height, lock aspect ratio, choose JPEG PNG or WebP, adjust quality, and download — all lokal in Ihrem Browser verarbeitet with transformImage. Kein Konto, kein Hochladen, völlig kostenlos.

Was dieses Tool macht

Images rarely arrive at the exact size a platform requires. Social posts need specific aspect ratios, CMS thumbnails have pixel caps, email signatures want small footprints, and print-adjacent workflows sometimes need precise dimensions. A reliable resizer lets you hit those targets without opening desktop software or trusting a cloud service with your files.

The XConverters resize tool shows your image natural dimensions after upload and lets you type target width and height in pixels. Keep aspect ratio is enabled by default so changing one dimension automatically updates the other — ideal when you know the width a layout needs but want proportions preserved. Turn it off when you need exact non-proportional dimensions for specialized layouts.

An allow upscale toggle controls whether the tool enlarges images beyond their original resolution. Upscale is off by default to avoid blurry enlargements, but you can enable it when you intentionally need a larger canvas. Output format supports JPEG, PNG, and WebP with a Qualitätsschieberegler for JPEG and WebP. transformImage handles decoding, scaling, and re-encoding entirely in Ihrem Browser.

Because nothing is uploaded, client photos, product shots, and personal images stay on Ihr Gerät. XConverters is free with keine Anmeldung, making this resizer suitable for quick one-off edits and repeated daily workflows alike.

So wird’s benutzt

Resizing an image on XConverters dauert nur wenige Schritte:

1. Öffnen Sie den Resize Image tool on XConverters — kostenloser Zugang ohne Registrierung.
2. Klicken Sie auf Hochladen or drag an image into the drop zone. Common formats like JPG, PNG, and WebP are supported.
3. Note the natural width and height displayed after the file loads.
4. Enter your target width and/or height in pixels. With keep aspect ratio on, updating one field adjusts the other.
5. Toggle allow upscale if you need output larger than the source; leave it off to prevent accidental blur.
6. Ausgabeformat wählen: JPEG, PNG oder WebP.
7. Adjust the Qualitätsschieberegler for JPEG or WebP output to balance size and visual fidelity.
8. Klicken Sie auf Herunterladen to save the resized image with dimensions reflected in the filename.

Decode, scale, and re-encode all happen on Ihr Gerät. XConverters does not store your images or require an account.

Wichtigste Funktionen

• Width and height fields in pixels
• Keep aspect ratio toggle (on by default)
• Allow upscale toggle for intentional enlargement
• Output formats: JPEG, PNG, and WebP
• Quality slider for JPEG and WebP
• transformImage engine — browserlokal processing
• Kostenlos unlimited resizing with keine Anmeldung
• Natural dimensions shown on upload for reference

Datenschutz und Sicherheit

Alles läuft lokal in Ihrem Browser auf XConverters. Ihre Eingaben werden niemals auf unsere Server hochgeladen, in einer Datenbank gespeichert oder an Dritte weitergegeben. Wir haben dieses Tool für Entwickler, Designer und alle Nutzer gebaut, die schnelle Ergebnisse ohne Abstriche bei der Privatsphäre brauchen.

Es können nur anonyme Website-Analysen erfasst werden, um Leistung und Bedienbarkeit zu verbessern. Der tatsächliche Text, die Dateien oder Daten, die Sie verarbeiten, verlassen Ihr Gerät bei normaler Nutzung nicht.

Unterstützte Formate und Anwendungsfälle

Common reasons to resize images on XConverters:

• Social media: Fit Instagram, LinkedIn, or X cover and post size requirements quickly.
• Website assets: Generate hero images, thumbnails, and card images at exact pixel widths.
• Email signatures: Shrink large photos to lightweight dimensions for corporate email.
• E-commerce: Standardize product image dimensions for marketplace listing templates.
• Documents and slides: Resize screenshots and diagrams before inserting into reports.
• App and game dev: Produce placeholder or sprite sizes for UI mockups and prototypes.

Tipps für beste Ergebnisse

• Leave allow upscale off unless you deliberately need a larger file — upscaling cannot add real detail.
• Use WebP with quality 80–88 for web images where browsers support it.
• When only one dimension matters, enter it and let keep aspect ratio calculate the other.
• PNG is best when you need lossless output; JPEG when file size is the priority.
• Check the downloaded filename for the final width×height confirmation.

Häufig gestellte Fragen

Is this image resizer free? Yes. XConverters offers unlimited resizing at no cost with kein Konto nötig.

Werden meine Bilder hochgeladen? Nein. transformImage läuft vollständig in Ihrem Browser; Dateien verlassen Ihr Gerät nicht.

What does keep aspect ratio do? When enabled, changing width automatically updates height (and vice versa) to preserve proportions.

Should I enable allow upscale? Only if you need output larger than the original. Default off prevents blurry enlargements.

Which formats can I export? JPEG, PNG, and WebP. Quality slider applies to JPEG and WebP.

Muss ich Software installieren? Nein. Ein moderner Browser auf XConverters reicht — die Verarbeitung ist 100 % lokal und kostenlos.