Vandmærkeværktøj
Tilføj tekst- eller billedvandmærker til dine billeder. Batch-understøttelse.
Drop your images here
or click to browse. Supports JPG, PNG, WebP, GIF
Selected Files
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How It Works
Upload
Select one or multiple images from your device
Configure
Adjust quality, format, and dimensions as needed
Download
Get your processed images instantly, no upload to servers
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Use tool →Sources & Technical References
WebAssembly codecs used by this tool:
- libheif — HEIC/HEIF decoding (used by iPhones)
- libwebp — WebP encoding/decoding (Google)
- libaom / libavif — AVIF encoding (Alliance for Open Media)
- mozjpeg — Improved JPEG encoder (Mozilla)
- oxipng — PNG optimizer
- MediaPipe — Face detection (for blur tools)
Standards followed:
- EXIF 2.32 specification (CIPA)
- WebP container spec (W3C)
- AV1-AVIF image format (AOM)
All processing happens client-side using WebAssembly modules. No image data is transmitted to any server. The processing speed and quality are equivalent to native desktop tools.