AVIF Image Editor & Converter
AVIF delivers the best compression ratios of any widely supported image format, often producing files 50% smaller than JPEG at equivalent quality. Built on the AV1 video codec, it supports HDR, wide color gamut, and transparency. FastEdit lets you convert to and from AVIF, adjust quality, crop, and compare output, all in your browser.
With Safari 16+ joining Chrome and Firefox in AVIF support, it is now practical for production web use. FastEdit makes adopting AVIF painless by handling the encoding entirely client-side.
Codec AV1 (Alliance for Open Media)
Color Depth 8-bit, 10-bit, 12-bit per channel
Color Gamut sRGB, Display P3, BT.2020 (wide gamut and HDR)
Animation Support Yes (AVIF sequence), though browser support is limited
What it handles
- Convert JPEG, PNG, WebP, or BMP images to AVIF with adjustable quality and speed presets
- Side-by-side comparison to preview AVIF output quality against the original before exporting
- AV1-based encoding with fine-grained control over quality, effort level, and color subsampling
- Crop, resize, and optimize AVIF images for web delivery with platform-specific dimension presets
- Smart fit-to-size targets a specific file size, ideal for meeting strict CMS or CDN limits
- Batch convert entire folders of images to AVIF in one operation
Where it fits
- Converting an entire website image library from JPEG/PNG to AVIF to improve Core Web Vitals scores
- Preparing product photography where high quality at small file sizes directly impacts page speed and sales
- Creating transparent marketing assets (logos, icons, overlays) where AVIF's lossy+alpha beats WebP quality
- Archiving high-resolution photos in AVIF lossless mode for maximum compression without quality degradation
- A/B testing image formats: export the same image as AVIF, WebP, and JPEG to compare size and quality
Technical Specifications
Codec AV1 (Alliance for Open Media)
Color Depth 8-bit, 10-bit, 12-bit per channel
Color Gamut sRGB, Display P3, BT.2020 (wide gamut and HDR)
Animation Support Yes (AVIF sequence), though browser support is limited
Transparency Full alpha channel in both lossy and lossless modes
Browser Support Chrome 85+, Firefox 93+, Safari 16+, Edge 121+
Typical Compression 50% smaller than JPEG, 20-30% smaller than WebP at equivalent quality
MIME Type image/avif