GIF to HEIF Converter

How to Convert GIF to HEIF Online

1. Upload Your GIF File: Drag and drop or click "Add Files" to select one or more GIF images (animated or static). Batch conversion is supported.
2. Pick a Quality Preset: The default is "Very High (Recommended)". Choose "Highest" for maximum fidelity, "High" or "Medium" for a good size-vs-quality balance, or "Low"/"Very Low"/"Lowest" when you need the smallest possible file.
3. Set Resolution (Optional): Keep the original dimensions, scale by Resolution Percentage (1-100%), pick a Preset Resolution, or type custom Width / Height values (aspect ratio is preserved by default).
4. Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared.

Why Convert GIF to HEIF?

GIF was published by CompuServe in 1987 and still uses LZW compression on a 256-color indexed palette. Photographic content develops visible banding, transparency is 1-bit (on/off), and even short animations balloon to several megabytes. HEIF (High Efficiency Image File Format, ISO/IEC 23008-12, introduced in 2015) wraps HEVC-coded images inside an ISOBMFF container, supporting 10-bit color, HDR, alpha transparency, and image sequences. For photographic or gradient-heavy GIFs, HEIF typically lands 50% or more below an equivalent JPEG and dramatically smaller than the source GIF.

• Apple ecosystem storage — Apple has captured photos in HEIF on iPhone 7 and later since iOS 11 (September 2017). Re-encoding old GIFs to HEIF lets them sit alongside .heic Camera Roll images without the Photos app having to round-trip a separate format.
• Cut iCloud and device footprint — A 2 MB GIF of a logo loop or screen recording often re-encodes to a few hundred KB at "Very High" quality. Useful when free iCloud is capped at 5 GB and you have hundreds of GIFs lying around.
• Smooth gradients and skin tones — The 256-color GIF palette mangles photographs. HEIF stores up to 10-bit per channel and benefits directly from HEVC's frequency-domain transforms — gradients stop banding.
• Keep transparency without 1-bit fringing — HEIF supports a real 8-bit alpha channel, so antialiased edges (logos, UI mock-ups, sticker art) survive the round trip cleanly instead of getting the speckled GIF "cutout" look.
• Cinemagraphs and burst sets — HEIF was designed to hold image sequences as tracks; the spec explicitly cites cinemagraph storage. HEVC inter-prediction can be tens of times more efficient than intra coding when most of the frame is static, which is exactly the GIF cinemagraph case.
• Print and editing handoff — HEIF preserves higher bit depth than GIF or JPEG, so colour grading and re-export from Apple Photos, Affinity Photo, or Pixelmator Pro produces cleaner results.

GIF vs HEIF — Format Comparison

Quality Preset Guide

Frequently Asked Questions

Will HEIF preserve the animation in my GIF?

The HEIF specification does support image sequences and is in fact designed for cinemagraphs and burst photos via HEVC inter-prediction. This particular converter outputs a single still HEIF image (the first frame). If you need to keep the loop, convert the GIF to a video container instead — see GIF to MP4 or GIF to WebM, both of which are dramatically smaller than the source GIF.

How much smaller is HEIF compared to the original GIF?

For photographic or gradient-heavy GIFs the savings are large because GIF must use LZW on a 256-colour palette while HEIF uses HEVC's frequency-domain compression. Apple cites "better compression than JPEG" for HEIF, and HEIF vs JPEG is already roughly 50% smaller at the same visual quality, so HEIF vs the equivalent GIF is typically a much bigger reduction. Flat graphics with very few colours (a 16-colour logo, for example) are GIF's best case and the gap narrows there.

What is the difference between HEIF and HEIC?

HEIF is the format specification (ISO/IEC 23008-12). HEIC is one specific brand and file extension Apple uses for HEIF files that contain HEVC-coded images. The MIME types differ too: image/heic and image/heic-sequence for HEIC, image/heif and image/heif-sequence for generic HEIF. Apple Photos saves with the .heic extension; this converter outputs .heif but the bytes are interoperable.

Can Windows or Chrome open HEIF files?

Windows 10 (build 1803 or later) and Windows 11 can open HEIF after installing the free "HEIF Image Extensions" from the Microsoft Store; HEVC playback also requires the "HEVC Video Extensions" (paid on most SKUs, free on some OEM installs). For browsers, only Safari 17+ decodes HEIF natively — Chrome, Firefox, and Edge do not, per caniuse data. If you need universal browser support, convert to HEIF to JPG or HEIF to PNG instead.

Which iPhone models capture in HEIF, and is this conversion useful for them?

Apple's documentation lists iPhone 7 and later as the devices that can capture HEIF, starting in iOS 11. If your library mixes legacy GIFs (saved from messaging apps, Twitter, or older websites) with newer .heic photos, converting them all to HEIF gives Photos a single consistent container.

Why would I pick HEIF over WebP or AVIF?

HEIF and HEIC are the format Apple actually uses, so they integrate cleanly with Photos, iMessage, AirDrop, and the macOS Preview pipeline. WebP has wider browser support and AVIF compresses even better than HEIF on average, but neither is a first-class citizen on iOS or macOS. For Apple workflows pick HEIF; for the open web pick GIF to WebP or GIF to AVIF.

Does the converter run on my device or upload my files?

Files are uploaded to a temporary processing session that is automatically cleaned up shortly after your download completes. There is no account, no watermark, and no permanent storage of the input or output. We don't retain your images after the session ends.

Will the HEIF output keep the GIF's transparency?

Yes — HEIF supports an 8-bit alpha channel, so transparent regions transfer cleanly. Note that GIF only encodes transparency as 1-bit (a pixel is either fully transparent or fully opaque), so existing GIF transparency edges may already be jagged before conversion; HEIF preserves whatever it receives but cannot reconstruct antialiasing that the source GIF never had.

What does the Resolution Percentage option actually do?

It scales both width and height by the same percentage before encoding, preserving aspect ratio. Setting it to 50% on a 1000x800 GIF produces a 500x400 HEIF, which is a useful extra size reduction on top of the codec change. Use a Preset Resolution (e.g., 1080p) when you want a fixed target instead, or type explicit Width / Height values for non-uniform scaling.