Converts WebP files to JPEG XL format — modern websites to next-gen image archival. All conversion happens locally in your browser with no file size limits.
Runs on Canvas
Content reviewed October 2026 · About Toolzum
HEIC to JXL output is not produced here — HEIC input decodes via heic2any, but Canvas cannot encode JXL, so conversion fails locally. Convert HEIC to PNG/JPG/WebP instead — local, unlimited saves.
AVIF to JXL output is not produced here — AVIF input decodes, but Canvas cannot encode JXL, so conversion fails locally. Convert AVIF to PNG/JPG/WebP instead — local, unlimited saves.
SVG to JXL output is not produced here — SVG input rasterizes, but Canvas cannot encode JXL, so conversion fails locally. Convert SVG 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.
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. JPEG XL (JPEG XL) uses lossy or lossless encoding and excels at next-gen image archival — better compression than JPEG with support for wide gamut and HDR. 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.
Unreachable here: Canvas cannot encode JXL, so the run ends in Conversion failed. Use WEBP-to-JPG for compatible output instead.
Moot — no JXL is emitted. PNG output preserves WEBP transparency; JPG fills it white.
Moot — no JXL is emitted. For compatibility ship WEBP or JPG with a <picture> fallback.
None — no quality control exists; JPG output uses fixed 0.92 and WebP 0.85.
Yes. All of the attempt runs in your browser — the JXL path fails locally with no upload.
JXL to WebP
Convert JPEG XL images to WebP for today's browsers while keeping files small. Bridge next-gen masters to current web — 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.