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Supports: WEBP
.webp images. Batch is supported — the same advanced settings apply to every file in the queue.WebP is Google's web-first image format built on the VP8 codec, while HEIF (High Efficiency Image File Format, ISO/IEC 23008-12) is an ISO/MPEG container that normally carries an HEVC/H.265 bitstream — the .heif/.heic files iPhones have shot since iOS 11 in September 2017. Converting moves an image from a web-distribution format to one that slots cleanly into the Apple Photos library, supports the same 10-bit and wide-gamut metadata as your camera roll, and is roughly 40-50 % smaller than the equivalent JPEG at matched quality.
ImageIO, PHAsset) handles every image..avif) and other codecs, so re-encoding once to HEIF leaves you a path forward without another round-trip.| Property | WebP | HEIF |
|---|---|---|
| Standard | Google open spec (2010), royalty-free | ISO/IEC 23008-12 (2015) |
| Default image codec | VP8 (lossy) / VP8L (lossless) | HEVC/H.265 in HEIC variant; AV1 in AVIF variant |
| Container | RIFF | ISO Base Media File Format (ISOBMFF) |
| Max color depth | 8-bit per channel | 10-bit and 12-bit per channel (with HEVC Main 10) |
| Wide colour gamut / HDR | Not natively HDR-aware | Display-P3, Rec.2020, HDR10 metadata supported |
| Animation / sequences | Yes (Animated WebP) | Yes (image sequences, bursts, Live Photo stills) |
| Transparency | 8-bit alpha (lossy + lossless) | 8-bit alpha (HEIC) |
| Typical size vs JPEG | ~25-34 % smaller | ~40-50 % smaller |
| Native browser support (2026) | Chrome, Firefox, Safari, Edge — ~96 % of users (Can I Use) | Safari 17+ only (Can I Use) |
| Native OS / app support | All major OSes via browsers | iOS 11+, macOS 10.13+, Windows 10/11 (HEVC codec), Android 10+ |
| Preset | Use When | Trade-off |
|---|---|---|
| Highest | Archival masters; you may re-edit later | Largest file; smallest visible difference vs source |
| Very High (default) | Sharing a photo at full perceived fidelity | Visually transparent for most photographic content |
| High | iCloud / Photos imports of casual shots | Slight chroma smoothing under heavy zoom |
| Medium | Email, Messages, social posts | Visible compression on flat gradients and skies |
| Low / Lowest | Squeezing under a strict size cap (e.g. CRM upload) | Blocking and banding likely on noise-heavy areas |
HEIF is the container; HEIC is the most common variant inside it. Per the standard, files whose images are HEVC-encoded must use the .heic extension (or .heics for sequences), while .heif is reserved for the broader mif1/msf1 brand that may carry any supported codec (Wikipedia). Practically: every .heic file is a .heif file, but not every .heif file is a .heic. If you need the Apple Photos default specifically, use WebP to HEIC instead.
No — HEIF is the container defined in ISO/IEC 23008-12; HEIC is the brand used when the image inside that container is encoded with HEVC/H.265. iPhones write .heic by default; tools that target the general container write .heif. Both can be opened by the same software (iOS 11+, macOS 10.13+, Windows 10/11 with the HEVC codec, Android 10+).
If the file is staying on the web, keep the WebP — it has near-universal browser support. Convert to HEIF when the destination is the Apple ecosystem (Photos, Messages, AirDrop), when you want a 10-bit / wide-gamut container that WebP physically cannot encode, or when you want roughly 10-25 % smaller files at the same visual quality on photographic content.
Yes for HEIC-encoded HEIF — the format supports an 8-bit alpha channel. Some downstream viewers (especially older Windows tools and non-Apple image apps) ignore the alpha and composite onto white, so test the consumer of the file before assuming PNG-level transparency behaviour. If you specifically need rock-solid alpha across every viewer, WebP to PNG is a safer pick.
HEIF supports image sequences (the same mechanism that stores iPhone burst shots and Live Photo stills), not GIF-style timed animation with looping. Most converters — including this one — export the first frame of an animated WebP as a single HEIF still. If you need a moving image, convert WebP to MP4 or to an animated AVIF instead.
For a typical photograph at matched perceptual quality, expect the HEIF to be roughly 10-25 % smaller than a quality-75 lossy WebP. Screenshots and flat graphics see less savings because VP8L (lossless WebP) is already efficient on text and large solid areas; HEIF's HEVC intra-coding shines on photographic noise and gradients.
Because no Chromium or Gecko browser ships an HEIF/HEIC decoder as of 2026 — only Safari 17+ does (Can I Use). HEVC patent-licensing costs are the usual cited reason. On desktop, open the file in Preview (macOS), the Photos app (Windows 10/11 with the free HEVC Video Extensions), or any image viewer with HEIF support like IrfanView or GIMP 2.10+.
The converter preserves embedded ICC profiles and standard EXIF blocks where the source carries them. GPS coordinates inside EXIF are kept — strip them in your photo app before upload if you don't want location data in the output.
Processing happens on our servers: files are uploaded over an encrypted connection, processed, and outputs are deleted automatically after a few hours. There is no per-file watermark and no sign-up gate. For very large batches, convert in smaller groups if upload time is a concern.
Pick the right destination for the recipient: if the receiver is on Android, Windows without the HEVC codec, or anywhere on the web, HEIF to JPG or going straight from WebP to JPG is the lower-friction path. HEIF is the right answer when the destination is Apple-native or HDR/wide-gamut-aware.