Your files stay on your Mac.
TIFF stores each pixel without re-encoding loss, making it the standard format for print workflows, archiving, and editorial pipelines. Converting your PNG to TIFF produces a file that professional publishing tools open natively, at the same resolution as the source. Embedded metadata is stripped in the process, so the output carries no hidden camera or editing information.
Drag one PNG or an entire folder into Convertessa. Every file stays on your Mac — nothing is uploaded to any server.
Choose TIFF from the output format list. Convertessa will produce a lossless TIFF at the original pixel resolution.
Click Convert. Convertessa processes all files locally and saves the TIFFs alongside the originals, or to a folder you select.
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. TIFF is a lossless format, so Convertessa writes every pixel from the source PNG without re-encoding or degrading the image data.
No — Convertessa strips embedded metadata during conversion. The output TIFF contains pixel data only, with no camera, GPS, or editing history attached.
Yes. Drop a folder onto Convertessa or run convertessa ./folder/ --to tiff in the terminal and every PNG inside is converted in one pass.