Converts GIF files to AVIF format — simple animations, memes, and images on platforms that support animated GIFs natively to next-gen web images. All conversion happens locally in your browser with no file size limits.
Runs on Canvas
Content reviewed October 2026 · About Toolzum
Convert WebP images to next-gen AVIF in your browser — squeeze modern files smaller still with transparency intact throughout.
Convert modern AVIF images to universal JPG in your browser — maximum compatibility where AVIF support lags where AVIF support still lags.
Convert BMP bitmaps to modern AVIF in your browser — shrink uncompressed legacy files to a fraction with royalty-free encoding.
Convert animated GIFs to modern WebP or WebM formats with transparency support — ~10x smaller files. Shrink GIFs dramatically for modern web use — local conversion, unlimited saves.
Capture still frames from any video at precise timestamps. Extract single screenshots or batch capture at regular intervals. Export as JPG, PNG, or WebP. Perfect for thumbnails and previews.
GIF (Graphics Interchange Format) uses lossy (limited to 256 colors) encoding and is best for simple animations, memes, and images on platforms that support animated GIFs natively. AVIF (AV1 Image File Format) uses lossy or lossless encoding and excels at next-gen web images — royalty-free format with better compression than WebP and JPEG. Converting between them lets you take advantage of each format's strengths — for example, using a compressed format for sharing and a lossless format for editing. All conversion happens locally in your browser with no file size limits.
Still frames convert reliably; true animation belongs in video formats.
AVIF can't invent detail, but it compresses flat graphics far better than GIF.
Preserved — AVIF carries alpha that GIF approximates. Flat graphics and logos convert cleanest.
No — conversion runs locally in your browser; unlimited saves on local tools.
AVIF to GIF
Convert AVIF images to GIF in your browser — each AVIF still encodes to a single-frame GIF locally via the bundled gif.js worker. Stills-only output flattens transparency to white, and downloads are unlimited since nothing is uploaded.
Bulk Image Format Converter
Convert image batches between JPG, PNG, WebP, and AVIF outputs (JPEG/PNG/WebP/AVIF/HEIC/HEIF/GIF/BMP/ICO/SVG inputs; HEIC via heic2any, SVG rasterized at intrinsic size or 1024px fallback) with a quality slider (10–100, default 80). Pair pages (?from/?to) preset the output. Flat ZIP renamed per file — local, 5-file guest batches, 25 signed-in, 500 Pro.
Batch Image Converter
Convert a batch of images to one output — JPG, PNG, or WebP — at quality 10–100% (default 80%), capped at 4096px longest side, then download everything as a ZIP. Files that fail conversion fall back to their originals inside the same archive — local library work.