Is AVIF to GIF conversion lossless?

No, converting from AVIF to GIF typically involves some quality loss because GIF is limited to 256 colors while AVIF supports millions. However, our converter uses Floyd-Steinberg dithering to minimize visible quality loss and preserve the best possible appearance.

Can I convert animated AVIF to animated GIF?

Yes, our converter fully supports converting animated AVIF files to animated GIFs. The converter automatically detects animation and preserves all frames. Note that animated GIFs will be significantly larger in file size (10-20x) compared to animated AVIF due to GIF's less efficient compression.

Do I need to install any software?

No installation required. Our AVIF to GIF converter runs entirely in your web browser using WebAssembly technology. Simply visit the website, upload your AVIF file, and convert instantly without downloading any software.

Is there a file size limit?

Yes, our converter supports files up to 200MB in size. This is significantly more generous than most online converters (typically 5-10MB limits) and accommodates virtually all use cases including high-resolution images and long animations.

Will my files be uploaded to your servers?

No, absolutely not. Our converter processes your files entirely within your browser using client-side WebAssembly. Your files never leave your device, ensuring complete privacy and security. This also means faster conversion since there's no upload/download time.

Why is my GIF file larger than the original AVIF?

This is expected and normal. AVIF uses advanced AV1 compression that's 50-90% more efficient than GIF. When converting, the GIF will typically be 3-10x larger for photos and 10-20x larger for animations. This is due to GIF's color limit (256 colors) and frame-by-frame compression vs AVIF's inter-frame compression.

Does the converter work offline?

After your first visit, the converter can work offline thanks to browser caching. The WebAssembly module and conversion engine are cached locally, so you can convert files without an internet connection once the page has loaded initially.

How long does conversion take?

Conversion speed depends on your device and file size. Typically: small images (< 1MB) convert in 1-2 seconds, medium images (1-10MB) in 3-5 seconds, and large files (10-200MB) in 10-30 seconds. All processing happens on your device using your CPU/GPU, so faster hardware = faster conversion.

100% Browser-Based • Privacy First

Free AVIF to GIF Converter

Convert AVIF images to GIF format instantly in your browser - 100% private, no upload required, free forever

100% Free

100% Private

Lightning Fast

No Limits

AVIF to PNG AVIF to JPG

AVIF to GIF

AVIF to Anything

Drag & drop AVIF or click to upload

Max size: 200 MB

How It Works

Three simple steps to convert your images

Upload AVIF File

Drop your AVIF file or click to browse. Supports files up to 200MB including animated AVIF.

Convert in Browser

Click convert and watch the progress. Processing happens locally using WebAssembly.

Download GIF

Your converted GIF downloads automatically. No watermarks, no registration, completely free.

Why Choose AVIF2GIF?

See how we compare to other converters

Feature	AVIF2GIF	Other Tools
File Upload to Server	No Upload	Required
File Size Limit	200 MB	5-10 MB
Conversion Speed	Instant (No upload time)	Slow (Upload + queue + download)
Privacy	100% Private	Files on their server
Cost	Free Forever	Often requires payment
Animated AVIF Support	Yes	Limited/No
Watermarks	None	Often added

About AVIF and GIF Image Formats

Understanding the formats you're working with

What is AVIF?

AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec. Released in 2019, it offers superior compression efficiency - typically 50% smaller than JPEG and 20-30% smaller than WebP while maintaining exceptional image quality. AVIF supports advanced features including:

10-bit and 12-bit color depth for HDR images
Wide color gamut (P3, Rec. 2020)
Alpha transparency with variable opacity
Animation with inter-frame compression
Lossless and lossy compression modes

Browser Support: As of September 2025, AVIF is supported by 93.8% of browsers including Chrome, Edge, Firefox, and Safari. Learn more in our comprehensive AVIF guide.

What is GIF?

GIF (Graphics Interchange Format) is one of the oldest image formats, introduced in 1987. Despite its age, GIF remains ubiquitous on the web due to universal browser support (99.9%) and simple animation capabilities. Key characteristics:

Limited to 256 colors per frame
Lossless compression using LZW algorithm
Support for frame-based animation
Binary transparency (pixels are either fully transparent or fully opaque)
File sizes 10-20x larger than modern formats for animations

When to Convert AVIF to GIF

While AVIF offers superior compression and quality, there are legitimate reasons to convert to GIF:

Legacy Browser Support

GIF works on browsers from the 1990s, while AVIF requires modern browsers (2020+)

Social Media Compatibility

Many platforms like Twitter, Discord, and Slack have excellent GIF support but limited AVIF support

Email Marketing

Email clients have near-universal GIF support, while AVIF support is minimal

Embedded Systems

IoT devices, digital signage, and embedded displays often only support basic formats like GIF

Software Integration

Many design tools, CMSs, and legacy software lack AVIF support but handle GIF natively

AVIF vs GIF: File Size Comparison

Understanding the file size differences helps you make informed decisions:

Content Type	AVIF Size	GIF Size	Difference
Simple Icon (64x64)	5 KB	8 KB	GIF +60% larger
Photograph (1920x1080)	80 KB	250 KB	GIF +212% larger
Short Animation (3s, 15fps)	120 KB	1.2 MB	GIF +900% larger
Complex Animation (5s, 30fps)	250 KB	4.8 MB	GIF +1,820% larger

💡 Why the difference? AVIF uses inter-frame compression (only storing what changes between frames) while GIF stores each frame independently. For detailed comparisons, read ourAVIF vs GIF deep dive.

How Our Converter Works

Our browser-based converter uses state-of-the-art technology to ensure the best possible conversion quality:

WebAssembly Processing

We compile FFmpeg (the industry-standard media processing library) to WebAssembly, allowing it to run directly in your browser at near-native speed. This eliminates server uploads and provides instant conversion.

Optimized Conversion Pipeline

Frame Rate Optimization: 15 fps for smooth motion

Lanczos Scaling: Highest quality resizing

Floyd-Steinberg Dithering: Color simulation

Adaptive Palette: Content-based colors

Transparency Preservation: Alpha to binary conversion

Privacy-First Architecture

Unlike traditional online converters that upload files to servers, our tool processes everything locally. The conversion happens entirely in your browser's memory - your files are never transmitted over the internet.

Complete privacy

Faster conversion

Works offline

No file limits

Technical Specifications

Input Formats

.avif, .avifs (static and animated)

Output Format

.gif (static or animated)

Maximum File Size

200 MB (browser memory limit)

Maximum Resolution

1920x1080 (auto-scaled if larger)

Color Depth

Full 256-color palette

Animation

Unlimited frames, auto-detected

Transparency

Alpha to binary conversion

Processing

Client-side WebAssembly (wasm)

Frequently Asked Questions

Learn More About Image Formats

Explore our comprehensive guides on image formats, conversion techniques, and web optimization: