Converts WebP files to AVIF format — modern websites 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
Upgrade your WebP image library to next-gen AVIF format for even smaller file sizes. Save an additional 20-30% bandwidth without visible quality loss. Everything runs locally in your browser — nothing is uploaded.
Convert AVIF images to WebP format for broader browser compatibility. Web developers ensure their next-gen images work across all modern browsers. Everything runs locally in your browser — nothing is uploaded.
Convert GIF images to modern AVIF in your browser — still frames compress dramatically smaller than legacy GIF, ideal for poster frames and thumbnails.
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.
WebP (Web Picture Format) uses lossy or lossless encoding and is best for modern websites — Google-recommended format with superior compression for faster page loads. 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.
Marginal but real — smaller files in the same compatibility class.
Both formats carry alpha, so nothing is lost in either direction.
Stills convert reliably; keep animation in video formats instead.
No — conversion runs locally in your browser; unlimited saves on local tools.
AVIF to WEBP
Convert AVIF images to WebP for broader browser compatibility without ballooning size. Serve next-gen art to the 5% on older browsers — local Canvas work, unlimited saves.
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.