Converts AVIF files to HEIC format — next-gen web images to Apple device photos. All conversion happens locally in your browser with no file size limits.
Runs on Canvas
Content reviewed October 2026 · About Toolzum
GIF to HEIC output is not produced here — GIF input decodes, but Canvas has no HEIC encoder, so conversion fails locally. Convert GIF to PNG/JPG/WebP instead — local, unlimited saves.
HEIC to BMP output is not produced here — HEIC input decodes via heic2any, but Canvas cannot encode BMP, so conversion fails locally. Convert HEIC to PNG/JPG/WebP instead — local, unlimited saves.
HEIC to TIFF output is not produced here — HEIC input decodes via heic2any, but Canvas cannot encode TIFF, so conversion fails locally. Convert HEIC to PNG/JPG/WebP instead — local, unlimited saves.
Design simple logos with text, tagline, and 5 preset icons on canvas — export PNG/SVG. Draft startup marks in an afternoon — local Canvas work, unlimited saves.
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.
AVIF (AV1 Image File Format) uses lossy or lossless encoding and is best for next-gen web images — royalty-free format with better compression than WebP and JPEG. HEIC (High Efficiency Image Container) uses lossy or lossless encoding and excels at Apple device photos — iPhone and Mac default format with excellent compression efficiency. 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.
Canvas has no HEIC encoder, so the run ends in Conversion failed with no file written. Convert AVIF to PNG, JPG, or WebP for a working download.
Moot — no HEIC is emitted from AVIF input. Convert AVIF to JPG for Apple Photos instead.
For AVIF sources: PNG for exact pixels, JPG for photos at fixed 0.92, or WebP at 0.85 — every one encodes locally with unlimited saves.
No — the attempt runs locally in your browser and fails before any save. Local-tool downloads stay unlimited.
HEIC to AVIF
Convert HEIC images to AVIF format in your browser. Photos never leave your device — processing runs locally in your browser with Canvas and WebAssembly.
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.