Your files stay on your Mac.
Converting a GIF to JPG produces a full-color JPEG from your GIF image. Convertessa strips EXIF metadata and lets you set quality on the JPG output. Everything runs on your Mac — files are never uploaded anywhere.
Drag one GIF or an entire folder onto Convertessa. All files are queued locally — nothing is uploaded to any server.
Choose JPG from the output format list. Set the quality level to control the balance between file size and image fidelity.
Click Convert. Convertessa processes each file on your Mac and saves the JPG output alongside the originals.
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 on your Mac. Your GIF files are never sent to any server — conversion is fully offline.
Yes. Because JPG is a lossy format, Convertessa lets you set the output quality before converting. Higher quality preserves more image detail; lower quality produces smaller files.
Yes. Drag a folder onto Convertessa to queue every GIF inside it, or use the CLI: convertessa ./folder --to jpg. All files convert in one pass with the same settings.