Output format
90%
Resize
Convert HEIF to WEBP Online Free — Fast Batch Conversion
How to Convert Images Online
1Upload your HEIF file
Drag and drop your .heif or .HIF file. Batch upload supported.
2Convert to WebP
Convertify decodes the HEIF container and encodes WebP at Q=75 by default. Lossless mode available.
3Download WebP
Download your WebP file and deploy to your website, CMS, or CDN.
Supported Image Formats
HEIF
High Efficiency Image Format — same as HEIC, used on Apple devices.
WebP
Modern image format by Google. Up to 30% smaller than JPG with the same quality.
HEIC
Apple photo format used by iPhone and iPad. High quality with small file size.
PNG
Lossless format that preserves every pixel. Best for screenshots and logos.
JPG
Universal format for photos. Supported everywhere, great balance between quality and file size.
GIF
Classic format for simple animations. Supports transparency and up to 256 colors.
BMP
Uncompressed bitmap format. Maximum quality but very large file size.
TIFF
Professional lossless format used in printing and photography.
AVIF
Next-gen format with excellent compression. Up to 50% smaller than JPG.
PPM
Portable Pixmap format used in Unix/Linux environments.
HDR
High Dynamic Range format storing extended brightness data.
FITS
Flexible Image Transport System used in astronomy and science.
PDF
Portable Document Format. Convert PDF pages to JPG, PNG or WebP images.
AVIF vs WebP vs HEIC vs JPG
Quick comparison to help you choose the right format
AVIF
- Size: Up to 50% smaller than JPG
- Browsers: Chrome, Firefox, Safari
- Transparency: ✓
- Best for: Web performance
WebP
- Size: 25-35% smaller than JPG
- Browsers: All modern browsers
- Transparency: ✓
- Best for: Web compatibility
HEIC
- Size: ~50% smaller than JPG
- Browsers: Safari only
- Transparency: ✓
- Best for: iPhone storage
JPG
- Size: Baseline
- Browsers: All browsers & apps
- Transparency: ✗
- Best for: Universal sharing
Frequently Asked Questions
- What is better for web use, WebP or HEIF?
- WebP — by a large margin in terms of browser compatibility. HEIF has 0% browser support globally; WebP is supported by approximately 97% of browsers. HEIF is more compression-efficient for photos, but that advantage is irrelevant if browsers cannot render it.
- Does WebP preserve transparency from HEIF?
- Yes. libvips carries the HEIF alpha channel through to WebP. Both lossy-with-alpha and lossless WebP modes support full 8-bit alpha. Choose lossless mode if exact edge transparency is required; lossy-with-alpha is smaller and visually identical for typical use.
- What is WebP's browser support in 2026?
- Approximately 95–97% globally per caniuse.com and Wikipedia. Chrome 32+ (2014), Firefox 65+ (2019), Safari 14+ (2020), Edge 18+ (2018), and Opera 19+ all support WebP natively in img and picture elements.
- Why not keep HEIF for the web?
- No major browser can render HEIF. caniuse.com explicitly notes that HEIC/HEIF browser support is 0% because the underlying HEVC codec is patent-encumbered and expensive to license. WebP uses the royalty-free VP8 codec and is a W3C Baseline feature.
- Does WordPress accept WebP?
- Yes, since WordPress 5.8 (July 2021). WebP files can be uploaded to the media library, used in img tags, and served directly. WordPress 6.0+ includes WebP as a first-class image type alongside JPEG and PNG.
- Can I convert Samsung HEIF to WebP?
- Yes. libheif decodes Samsung's HEVC-encoded HEIF files regardless of whether the extension is .heif or .heic, and libvips encodes the result as WebP. The entire pipeline — upload, decode, encode, download — runs on Convertify's servers in Rust with no client-side codec installation.
- Is WebP smaller than JPG?
- Generally yes. Google's own measurements show lossy WebP is about 25-34% smaller than JPEG at equivalent visual quality; lossless WebP is about 26% smaller than PNG. The savings depend on content — photographic images compress well; flat graphics with large solid areas may not see as dramatic a reduction.
- Does animated HEIF convert to animated WebP?
- Convertify extracts the primary image from HEIF by default, producing a static WebP. Full multi-frame HEIF sequence to animated WebP conversion is available via the frames=all parameter, which converts each HEIF frame to a corresponding WebP frame with timing preserved.
Why WebP for the web
caniuse.com classifies HEIF/HEIC as unsupported in browsers, explicitly noting it is hard for browsers to support because the HEVC codec is complex and expensive to license. WebP, by contrast, is a Baseline format on caniuse.com: Chrome 32+ (January 2014), Firefox 65+ (January 2019), Safari 14+ (September 2020, macOS Big Sur), Edge 18+ (October 2018), and Opera 19+. Wikipedia notes that browsers supporting WebP had 97% global market share as of 2024. The practical implication: HEIF images cannot appear in an HTML img tag on any browser, while WebP can appear in virtually all of them.
HEIF vs WebP compression
HEIF/HEVC is generally more compression-efficient than WebP/VP8 for photographic content at the same visual quality. Cloudinary's image format guide notes lossy WebP is typically 25-34% smaller than JPEG and lossless WebP is 26% smaller than PNG; HEIF/HEVC outperforms both WebP and JPEG. The practical consequence: HEIF-to-WebP conversion at equivalent visual quality will produce a WebP that is slightly larger than the source HEIF, though still substantially smaller than JPEG. A 3 MB HEIF photo at WebP Q=80 typically becomes 3.5–4.5 MB — far better than the 5–6 MB JPG equivalent. For maximum web compression, HEIF to AVIF is the better route; WebP is the right choice when maximum browser compatibility is the priority.
Transparency: preserved from HEIF to WebP
WebP supports alpha in both lossy (partial alpha with WebP lossy payload) and lossless (full alpha fidelity) modes. libvips's vips_webpsave preserves the alpha band from the decoded HEIF VipsImage. If your HEIF source contains an alpha channel (common in app screenshot and icon exports, rare in camera captures), the transparency is carried through to the WebP output. For transparent images, lossless WebP (lossless=true in Convertify's options) gives exact alpha fidelity; lossy WebP with alpha is smaller and visually transparent, with a ~1-bit difference in edge pixels acceptable for most uses.
HEIF vs WebP: format comparison
| Feature | HEIF (.heif) | WebP |
|---|---|---|
| Compression | HEVC — best for photos | VP8 lossy / VP8L lossless |
| Color depth | 8-bit or 10-bit | 8-bit only |
| HDR | Yes (HLG, PQ, BT.2020) | No |
| Transparency | Yes (8-bit alpha) | Yes (lossy+alpha or lossless) |
| Animation | Yes (HEIF sequences) | Yes (animated WebP) |
| Browser support (2026) | 0% — not supported | ~97% — Baseline format |
| CDN / CMS support | No | Yes (WordPress, Shopify, Cloudflare) |
| Windows native | Requires extensions | Yes (all modern browsers) |
| Best for | Camera storage, Apple eco | Web delivery, CMS, CDN |
CMS and CDN compatibility
WordPress natively uploads and serves WebP since version 5.8 (July 2021); version 6.0 added WebP as a core image type. Shopify auto-serves WebP to supported browsers via its CDN. Squarespace serves WebP from its image delivery layer. Cloudflare Images, AWS CloudFront, and Cloudinary all support WebP as a delivery format and can auto-convert uploads. HEIF is not a delivery format on any of these services — uploads are accepted but internally transcoded. Delivering WebP directly from your source avoids double-compression artifacts from the CDN's automatic transcode.
When AVIF beats WebP
AVIF (AV1 Image File Format) offers better compression than WebP for photographic content, supports 10-bit color (WebP is 8-bit only), and has approximately 93-95% browser support as of 2026. If your users are on Chrome 85+, Firefox 93+, and Safari 16+ — a safe assumption for most modern web audiences — AVIF is the superior target for maximum compression with minimum quality loss. The recommended approach for production web pipelines is a picture element ladder: AVIF as the primary source, WebP as the fallback, JPG or PNG as the safety net for legacy browsers. Convertify offers HEIF to AVIF as a separate conversion.
How Convertify converts HEIF to WebP
The pipeline uses Rust + libvips + libheif. vips_heifload() decodes the HEIF container (HEVC via libde265, AVC via OpenH264, AV1 via libaom) into a VipsImage with ICC profile and EXIF attached. For wide-gamut HEIF (BT.2020 ICC), vips_icc_transform converts to sRGB before encoding. vips_webpsave encodes with Q=75 by default, lossless=false, smart_subsample=true, effort=4 (range 0-6; higher effort produces smaller files at the cost of encode time). EXIF and GPS data are preserved in the WebP XMP metadata block unless strip=true is requested. The WebP bytes stream directly to the HTTP response without temporary files.