Compress HEIC Images Online — Free, No Upload
High Efficiency Image Format — the default photo format on iPhones and modern Apple devices. Excellent compression. ImageSmith's free HEIC compressor reduces file sizes by 60–90% using advanced lossy compression, entirely in your browser. HEIC has limited browser support outside Apple ecosystems. ImageSmith converts HEIC to JPEG or WebP for universal web compatibility.
✓Up to 50% smaller than equivalent JPEG at the same visual quality
✓Default format for all iPhone camera photos (iOS 11+)
✓Excellent quality preservation at small file sizes
Compress HEIC to a Specific Size
Other Format Compressors
When to Use HEIC
HEIC photos from iPhone need to be converted to JPEG or WebP before web sharing or social media upload due to limited browser support.
HEIC Compression FAQ
Upload your HEIC image to ImageSmith, set your target file size or quality percentage, and click Compress. Your compressed HEIC downloads instantly — no account and no watermark required.
HEIC is a lossy format. ImageSmith's quality slider lets you precisely control the quality-to-size trade-off. Quality settings of 75–85 are imperceptible to most viewers while reducing file size by 60–80%.
HEIC has limited browser support outside Apple ecosystems. ImageSmith converts HEIC to JPEG or WebP for universal web compatibility. ImageSmith uses a binary search algorithm to automatically find the highest quality setting that achieves your target file size.
Completely safe. ImageSmith runs entirely in your browser using the Canvas API. Your HEIC images never leave your device — zero server uploads.
There is no file size limit. ImageSmith processes HEIC images of any size locally in your browser. Larger images may take slightly longer, but there is no upload size cap imposed by our servers.