Dynapik offers a free online tool to change image types - no need to download anything. It's quick and easy to use. You can change your DNG images to WEBP format. This tool works for both professionals and casual users. Convert your images to WEBP in seconds.
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DNG (Digital Negative)
The universal raw format designed to stand the test of time.
DNG (Digital Negative) is an open, royalty-free raw image format developed by Adobe. It was created to solve a major problem in digital photography: every camera manufacturer uses their own proprietary raw format (CR3, NEF, ARW, etc.), and when a new camera comes out, old software can't read its files. DNG acts as a universal container for raw sensor data. It preserves all the original image information—just like a proprietary raw file—but wraps it in a standardized, publicly documented structure. This ensures that your photos will remain readable by software decades from now, even if the camera manufacturer goes out of business.
DNG is based on the TIFF/EP standard. It stores the raw sensor data (Bayer pattern or X-Trans) along with metadata defining how that data should be interpreted (color matrices, white balance, linearization tables). Uniquely, DNG also supports 'Linear DNG' (partially processed/demosaiced data) and 'Lossy DNG' (which applies JPEG-like compression to raw data, significantly reducing file size while retaining raw editing flexibility).
Adobe launched DNG in 2004. While initially met with skepticism, it has been adopted natively by several manufacturers (Leica, Pentax, Hasselblad, and most smartphones including iPhone and Pixel) and is the standard format for mobile raw photography.
WebP
Google's versatile format that does it all—transparency, animation, and superior compression.
WebP is a modern image format developed by Google specifically to speed up the web. It is a 'swiss army knife' format that combines the best features of JPEG (lossy compression), PNG (lossless compression and transparency), and GIF (animation) into a single, efficient package. WebP lossless images are typically 26% smaller than PNGs, while WebP lossy images are 25-34% smaller than comparable JPEGs. This significant size reduction helps websites load faster and consume less bandwidth, which is why it is strongly recommended by Google's PageSpeed Insights. After years of partial browser support, WebP is now universally supported across all modern browsers (Chrome, Firefox, Safari, Edge), making it the default choice for delivering optimized images on the web today.
WebP is based on the VP8 video codec (part of the WebM project). **Lossy WebP** uses predictive coding to encode an image, similar to how video keyframes are compressed. It predicts the values of pixels based on their neighbors and only encodes the difference (residual). It operates in the YUV color space. **Lossless WebP** uses advanced techniques like dedicated entropy codes for different color channels, 2D locality of backward reference distances, and a color cache of recently used colors. It operates in the RGBA color space. Uniquely, WebP supports 'lossy with transparency'—a feature JPEG lacks. This allows for transparent images that are significantly smaller than PNGs by applying lossy compression to the RGB channels while keeping the alpha channel sharp (or compressed).
Google announced WebP in September 2010 as a new open standard for lossy true-color graphics. It was derived from the VP8 video codec technology Google acquired from On2 Technologies. In 2011, Google extended the format to support lossless compression, transparency (alpha channel), and animation, effectively positioning it as a replacement for JPEG, PNG, and GIF simultaneously. Adoption was initially slow outside of the Chrome ecosystem. Firefox added support in 2019, and the final major holdout, Apple's Safari, added support in September 2020 (iOS 14 / macOS Big Sur). This universal support marked the turning point where WebP became safe to use as a primary format.
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