Convert HEIC and HEIF photos to JPG locally in your browser.
Convert HEIC and HEIF photos into widely compatible JPG files without uploading them. VoltUtils validates each file, decodes images sequentially in your browser, preserves the decoded dimensions and orientation, and uses the browser JPEG encoder at your chosen quality. Multiple successful results can be downloaded individually or together in one ZIP. HEIC is often more efficient than JPEG, so a converted JPG can be larger than its source.
IMG_4821.heic · 2.4 MBIMG_4821.jpg · 3.1 MB at 90% qualityHEIC is highly efficient, so converting to JPG does not always reduce file size.
The browser first checks the filename, available media type, and HEIF container signature. When you convert, a lazily loaded libheif-based decoder reads each image locally in your browser. The decoded pixels are drawn at their natural dimensions and orientation, then the browser Canvas API asynchronously encodes a JPEG at the selected quality.
Files are processed one at a time to control peak memory use. A failed or malformed file is isolated from the rest of the batch. Successful JPGs remain available, and bulk download packages those already-compressed files into an uncompressed ZIP without contacting a server.
HEIC often stores a photo more efficiently than JPEG. Conversion improves compatibility, not compression, so the JPG can be larger than the HEIC source.
HEIC is a common filename extension for photos stored in the High Efficiency Image File format. It can store high-quality images in less space than older formats.
Apple devices commonly use High Efficiency capture to reduce photo storage while retaining image quality. The Camera settings can use a more compatible format when needed.
Upload one or more HEIC or HEIF files, choose a JPG quality, select Convert, then download each JPG or use Download all for a ZIP.
No. File validation, HEIC decoding, JPEG encoding, and ZIP creation run locally in your browser. The images are not sent to VoltUtils or a conversion API.
JPEG is a lossy format, so re-encoding can remove some detail. The default 90% setting favours visual quality, while lower settings generally produce smaller files.
HEIC uses efficient modern compression. A JPEG representing the same visible image can need more bytes, especially at a high quality setting.
No guarantee is made for EXIF or HEIC-specific metadata. The tool converts decoded pixels, so keep the original when dates, location, camera data, depth information, or other metadata matters.
Yes. You can add up to 12 files within the displayed file-size and decoded-pixel safety limits. Files are converted sequentially so one failure does not stop the rest.
Yes, in a current mobile browser where the file picker exposes the HEIC or HEIF file. Browser memory limits can make very large batches less reliable than smaller groups.
No. JPEG has no transparency channel. Any transparent decoded area is placed on a white background.
HEIF is the container format, while HEIC is a commonly used extension and profile for HEIF images encoded with HEVC. Both extensions are accepted here.
Use 90% for high-quality general conversion, 80% for a balanced result, or 70% when a smaller upload matters more than retaining fine detail.
Reduce JPEG, PNG, or WebP file size locally and download the result.
Resize JPG, PNG, or WebP images locally with aspect-ratio and quality controls.
Encode PNG, JPEG, or WebP images as Base64, or decode Base64 back to an image.
Trace PNG, JPG, or WebP graphics into real scalable SVG vector paths.
Drop HEIC or HEIF files here, or choose files
Choose filesHEIC and HEIF · Up to 12 images · 25 MB each