Kostenlose Online-Bildwerkzeuge
Bearbeite und optimiere Bilder kostenlos online: komprimieren, skalieren, zuschneiden, drehen, konvertieren und Metadaten prüfen.
Alle Bildwerkzeuge
Bildkomprimierer
Bilder komprimieren, um die Dateigröße zu verringern, ohne sichtbare Qualität zu verlieren
Bildgrößen-Änderer
Bilder in jede gewünschte Größe skalieren und dabei das Seitenverhältnis beibehalten
Bild-Zuschneider
Bilder auf die gewünschte Größe und das gewünschte Seitenverhältnis zuschneiden
Text-zu-Bild-Generator
Text in herunterladbare Bilder umwandeln
Bildformat-Konverter
Bilder zwischen JPG-, PNG-, WebP- und GIF-Formaten konvertieren
Bild-zu-WebP-Konverter
JPG/PNG-Bilder für kleinere Dateigrößen in WebP konvertieren
Bildhintergrund-Entferner (Basic)
Einfache Hintergründe nach Farbe mit einem Toleranzregler entfernen
Bild-Farbpicker
Farben aus Bildern aufnehmen und HEX-/RGB-Werte erhalten
Graustufen-Bildkonverter
Farbbilder in Graustufen (Schwarzweiß) umwandeln
Bild spiegeln und drehen
Bilder horizontal oder vertikal spiegeln
Bild-Rotations-Tool
Bilder um 90/180/270 Grad oder um benutzerdefinierte Winkel drehen
Bild-Wasserzeichen-Tool
Text-Wasserzeichen mit Position, Größe, Farbe und Deckkraft hinzufügen
Bild-Unschärfe-Tool
Das gesamte Bild oder einen ausgewählten Bereich weichzeichnen
Bild-Metadaten-Viewer
Dateigröße, Typ, Abmessungen und grundlegende Bildinfos anzeigen
Datenschutzfreundliches OCR
Text lokal aus Bildern extrahieren, mit Tesseract.js und Canvas-Vorverarbeitung
KI-Hintergrundunschärfe für sensible Fotos
Den Hintergrund oder das erkannte Motiv in sensiblen Fotos lokal mit KI-Segmentierung weichzeichnen
Lokaler Metadaten-Cleaner (EXIF-Entferner)
GPS-Koordinaten, Kameradetails und versteckte EXIF-Metadaten lokal aus Fotos entfernen
Überblick
Image workflows often involve repetitive resizing, compression, and format conversion for web, social, and print. This catalog provides client-side tools to clean, convert, and optimize assets while keeping originals private. From quick crops to metadata inspection, you can handle production-ready image tasks in seconds.
The hidden cost of unoptimized images
Large images slow down websites, inflate storage costs, and create inconsistent rendering across devices. Without a reliable optimization workflow, teams end up re-editing files or shipping heavyweight assets that hurt performance.
Creative teams also need precise control over dimensions, aspect ratios, and formats for different platforms. Manual editing in heavyweight software slows iteration and introduces errors.
Finally, asset privacy matters when files contain sensitive visuals. Client-side tools allow teams to handle private media without uploading them to third-party servers.
Katalogübersicht
Compression and size reduction
Reduce file size while keeping visual quality suitable for web and sharing.
- Speed up page load times
- Shrink assets for email and messaging
- Optimize galleries for mobile
Resize, crop, and transform
Match platform-specific dimensions and ratios with precise control.
- Create social media sizes
- Prepare hero images and banners
- Adjust aspect ratios for ads
Format conversion and variants
Convert between modern and legacy formats without losing compatibility.
- Switch JPG, PNG, WebP, and GIF
- Create platform-specific variants
- Reduce weight with newer formats
Editing utilities and diagnostics
Make quick adjustments or inspect asset details before shipping.
- Remove backgrounds or blur sensitive areas
- Apply watermarks for attribution
- Inspect dimensions and metadata
So nutzt du diese Tools
- 1
Choose the target output
Decide the final size, format, and use case before editing.
- 2
Load your image locally
Select a file from your device to keep the process private.
- 3
Apply transformations
Resize, crop, rotate, or convert based on the delivery channel.
- 4
Validate visual quality
Check clarity, sharpness, and composition in the preview.
- 5
Download optimized files
Export assets in the required format and size.
- 6
Reuse consistent presets
Apply the same settings to keep campaign assets consistent.
Anwendungsfälle
Ecommerce listings
Standardize product images for consistent storefront presentation.
Blog and CMS publishing
Compress hero images to improve load speed and SEO.
Social media campaigns
Resize and crop to meet platform-specific dimensions.
Brand asset preparation
Convert and watermark approved marketing images.
Internal documentation
Blur or redact sensitive details before sharing.
Photography workflows
Inspect metadata and create lightweight previews.
Professionelle Anwendungen
Digital marketing
Deliver fast-loading assets optimized for campaigns and ads.
Product design
Prototype and document UI imagery with consistent dimensions.
Content operations
Prepare batch images for publishing pipelines.
Agency production
Generate multiple size variants quickly for clients.
Education and training
Resize and annotate visuals for course materials.
Bewährte Methoden
- Pick target dimensions and file sizes before editing to avoid rework.
- Use WebP for modern web delivery when compatibility allows.
- Compress hero and gallery images to reduce page load time.
- Check focus and crop to avoid cutting off key subjects.
- Apply watermarks only to exported versións, not originals.
- Store originals separately for future edits and higher-quality exports.
- Review metadata when privacy or location data is sensitive.
Häufige Fragen
Are images uploaded to your servers?
No. All image processing happens in your browser.
Which formats are supported?
Most tools support JPG, PNG, and WebP, with some supporting GIF.
Will compression reduce quality?
Compression reduces size by optimizing quality. You control the balance before downloading.
Is there a size limit?
There is no strict limit, but very large files depend on device memory.
Can I crop to exact aspect ratios?
Yes. Use preset or custom ratio cropping for precise output.
Do you preserve metadata?
Some tools keep metadata, while others strip it to reduce size.
Can I watermark images?
Yes. Add text watermarks and adjust placement and opacity.
Is this safe for confidential images?
Yes. Client-side processing keeps files local to your device.