Your files stay on your Mac.
Converting SVG to AVIF rasterizes your vector graphics into a modern, high-efficiency image format. Convertessa runs entirely on your Mac — no files are uploaded and no internet connection is needed. Batch-convert a whole folder of SVGs at once and set quality to balance file size against visual fidelity.
Drag one SVG or an entire folder onto Convertessa. Files stay on your Mac — nothing is uploaded to any server.
Choose AVIF from the output list, then set quality to control the trade-off between file size and visual fidelity.
Click Convert. Convertessa rasterizes each SVG to AVIF at the original resolution, stripping EXIF metadata from the output files.
Images, audio, video, documents, archives and eBooks — all converted natively, right on your Mac.
Pick a format you have — see everything Convertessa can turn it into.
Convert hundreds of files at once with per-type group defaults and individual overrides.
First-class support for HEIC, AVIF and WebP — encode and decode, both ways. Read JPEG XL and a dozen more modern formats too.
Drop files anywhere on the window. Native, instant, and exactly what you’d expect on a Mac.
Dial in compression, resolution and bitrate. Keep originals pristine or shrink for sharing.
Never overwrite a file by accident. Convertessa appends safe suffixes automatically.
Every job is logged locally. Re-run a previous conversion or revisit recent outputs in a click.
Bundle your converted files straight into a single ZIP, TAR or 7z — packaged and ready to share the moment a job finishes.
Right-click any file in Finder and choose Convert. A Quick Action handles it on the spot — no need to open the app first.
Shrink Convertessa to a tidy mini window that tucks into a corner — just a drop zone and a format picker for quick, one-off conversions.
No cloud. No account. No upload. Every conversion happens entirely on-device, using the power already in your Mac. What you convert is nobody’s business but yours.
Script conversions, wire them into your build, or batch a folder from the terminal. The same engine, no GUI required.
Read the full CLI documentation →Shrink Convertessa down to a small, focused window — drop, convert, done, with your recent conversions one click away.
macOS 14+ · Apple Silicon & Intel
New formats, new features, and fixes — every release, on the record.
No. Convertessa runs entirely offline. Your files are never uploaded to any server — conversion happens locally on your device.
Yes. Drop a folder onto Convertessa or run convertessa ./folder --to avif in the terminal to batch-convert every SVG inside it.
AVIF is a lossy format. The quality slider controls the trade-off between file size and visual fidelity — higher quality produces larger files, lower quality produces smaller ones.