Image tools
Kilnfile's image tools compress, resize, crop and convert JPG, PNG, WebP, HEIC and SVG files without uploading anything. Processing uses your browser's built-in Canvas and WebCodecs APIs, so it is fast, free and private. Choose a tool, drop in one photo or a whole folder, and download the result.
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All image tools (12)
ImageCompress JPGReduce JPG file size in your browser with a quality slider and optional max width.ImageCompress PNGShrink PNG files with lossy colour reduction or lossless re-encoding, transparency preserved.ImageResize ImageChange image dimensions by width, height, percentage or exact size without uploading anything.ImageCrop ImageCut an image down to exactly the area you want, by drag or by pixel values.ImageHEIC to JPGTurn iPhone HEIC and HEIF photos into JPG files that open anywhere.ImagePNG to JPGConvert PNG images to compact JPG files, choosing a quality and background colour.ImageJPG to PNGConvert JPG photos to lossless PNG files ready for transparency or further editing.ImageWebP to JPGConvert WebP images saved from the web into JPG files every app can open.ImageJPG to WebPConvert JPG or PNG images to WebP for smaller, faster-loading web pages.ImageSVG to PNGRender SVG vector files to crisp PNG images at whatever width you need.ImageRemove EXIF DataStrip location, camera and date metadata from photos without touching the image pixels.ImageImage to Base64Encode an image as Base64 for inline use in HTML, CSS, JSON or email.
| Tool | Accepts | Batch | Updated |
|---|---|---|---|
| Compress JPG | .jpg, .jpeg | Yes | 20 September 2026 |
| Compress PNG | .png | Yes | 20 September 2026 |
| Resize Image | .jpg, .jpeg, .png, .webp | Yes | 20 September 2026 |
| Crop Image | .jpg, .jpeg, .png, .webp | No | 20 September 2026 |
| HEIC to JPG | .heic, .heif | Yes | 20 September 2026 |
| PNG to JPG | .png | Yes | 20 September 2026 |
| JPG to PNG | .jpg, .jpeg | Yes | 20 September 2026 |
| WebP to JPG | .webp | Yes | 20 September 2026 |
| JPG to WebP | .jpg, .jpeg, .png | Yes | 20 September 2026 |
| SVG to PNG | .svg | Yes | 20 September 2026 |
| Remove EXIF Data | .jpg, .jpeg, .png, .webp | Yes | 20 September 2026 |
| Image to Base64 | .jpg, .jpeg, .png, .webp, .gif, .svg | No | 20 September 2026 |
Photos are personal. Running the conversion on your own machine means holiday snaps, ID scans and product shots stay exactly where they are. Batch mode handles dozens of files at once and hands back a single zip.
Formats covered include JPG, PNG, WebP, HEIC from iPhones, and SVG, plus utilities for stripping EXIF location data and turning images into base64 for code.
Guides for image tools
- How to convert iPhone HEIC photos to JPGTurn iPhone HEIC photos into JPGs that open anywhere, in your browser with no upload. Plus the iPhone setting that stops HEIC in the first place.
- How to compress images for a websiteResize, then compress: the two-step routine that cuts web images by 60 to 80 percent with no visible loss. JPG, PNG and WebP settings that actually work.
- How to strip location data from photos before sharingPhotos carry GPS coordinates accurate to a few metres. Remove EXIF data in your browser before emailing, selling online or posting originals.
- Image formats explained: JPG, PNG, WebP, HEIC and SVGWhich image format to use and when. JPG, PNG, WebP, HEIC, SVG, GIF and AVIF compared on size, quality, transparency and support, with real numbers.