HEIC to WebP

What is HEIC?

HEIC (High Efficiency Image Container) is a modern image format based on the HEVC (H.265) video codec and standardised by MPEG in 2015. Apple adopted HEIC as the default photo capture format in iOS 11 (2017) and macOS High Sierra, so every iPhone and recent iPad automatically saves photos as .heic files instead of JPG. HEIC offers roughly twice the compression efficiency of JPG at equivalent visual quality, supports 16-bit color depth, alpha-channel transparency, multiple images per container (burst photos, depth maps, thumbnails), and HDR — all in a file about half the size of a comparable JPG.

Despite these advantages, HEIC has a compatibility problem outside the Apple ecosystem. Most Windows versions need a HEIF codec extension, Android support is inconsistent across vendors, many image editors and content management systems cannot open .heic files, and most web browsers historically could not decode HEIC natively. That compatibility gap is the main reason users need to convert HEIC images to a more portable format such as WebP.

What is WebP?

WebP is a modern image format introduced by Google in 2010 and designed specifically to make the web faster by producing much smaller image files. WebP supports both lossy and lossless compression within a single format, alpha-channel transparency, and animation, so it can replace JPG, PNG and GIF all at once. According to Google, lossy WebP is typically 25–35% smaller than JPG at equivalent visual quality, and lossless WebP is about 26% smaller than PNG. For a HEIC source, the resulting WebP is comparable in size while being far more widely supported on the web.

All modern browsers including Chrome, Firefox, Safari and Edge fully support WebP, so the format is safe to serve to virtually any web audience today. WebP is also supported by major image editors, content management systems, CDNs, and frameworks, making it a default choice for web publishing, mobile apps, and performance-focused workflows.

HEIC vs WebP comparison

HEIC and WebP are both modern, highly efficient image formats, but they target different ecosystems. HEIC is dominant on Apple devices, while WebP is the de-facto format for the open web. The table below summarises the key differences between HEIC and WebP.

Feature	HEIC / HEIF	WebP
Year introduced	2015 (MPEG)	2010 (Google)
Underlying codec	HEVC (H.265)	VP8 / VP9-based
Compression efficiency	Excellent (~2× JPG)	Excellent (~25–35% smaller than JPG)
Color depth	Up to 16-bit	8/10/12-bit
Transparency	Yes (alpha channel)	Yes (alpha channel)
Animation	Yes (image sequences)	Yes (native)
Multiple images per file	Yes (bursts, depth)	No
Native platform	iOS / macOS default	Web / Android default
Browser support	Limited (Safari 17+, Chrome 85+ desktop, partial elsewhere)	All modern browsers
Best for	iPhone photos, Apple ecosystem	Web, mobile, performance, SEO

In short, HEIC wins on the iPhone and Apple ecosystem, while WebP wins on the open web. Converting HEIC to WebP lets you reuse iPhone photos on websites, in browsers, and in any modern publishing pipeline without compatibility issues.

When to use HEIC to WebP conversion

Converting HEIC photos to WebP is the right choice in most situations where an iPhone photo needs to leave the Apple ecosystem. Here are the most common scenarios where a HEIC to WebP conversion makes sense:

• Web publishing. Most web servers and CDNs do not serve HEIC files, and many browsers cannot display them. WebP is the modern, universally supported choice for web images.
• Cross-platform sharing. Sharing HEIC files with Windows, Android or Linux users often leads to "cannot open" errors. A WebP copy opens everywhere.
• CMS and e-commerce uploads. Most content management systems and marketplaces reject .heic uploads; WebP is universally accepted.
• Email and messaging. Email clients and chat apps handle WebP far more reliably than HEIC.
• Performance optimisation. For LCP and Core Web Vitals, WebP delivers the smallest payload that loads fastest on mobile networks.
• Photo editing pipelines. Most image editors accept WebP directly, while HEIC support is uneven outside Apple's tools.

Keep your original HEIC file as a master copy whenever possible — it stores 16-bit color, HDR metadata and burst data that no web format preserves. Use the WebP export for web delivery where compatibility and small file size matter most.

How to convert HEIC to WebP

Converting a HEIC image to WebP with this tool takes only a few seconds and happens entirely in your browser. No upload, no sign-up, and no installation are required. Follow these four steps:

1. Upload your HEIC file. Click the upload area or drag and drop a .heic or .heif file from your computer. The image is decoded locally and shown as a preview.
2. Adjust the WebP quality. Use the quality slider from 10% to 100% to balance file size and visual quality. 85% is a good default for photographs; lower values produce smaller files.
3. Convert to WebP. Click the "Convert to WebP" button. The tool re-encodes the decoded image to WebP via the Canvas API and shows the original and converted file sizes side by side, along with the percentage saved.
4. Download the WebP. Click "Download WebP" to save the converted file to your device. The original HEIC remains untouched on your computer.

Because every step runs locally in your browser using JavaScript, your HEIC image is never uploaded to a server. This makes the conversion completely private, fast, and suitable for sensitive or confidential photos.