Convert TIFF to WebP on Mac.

Local file processing, by renaming the file in Finder. No converter window and no upload queue.

Finder rename

report.tiffreport.webp

How the rename works

  1. 1

    Start with report.tiff

    Put the TIFF file in a folder RenameTo watches, such as Desktop or Downloads.

  2. 2

    Rename it to report.webp

    In Finder, change .tiff to .webp, then press Return. The rename is the command.

  3. 3

    Find the WebP beside it

    RenameTo produces the requested output and keeps a restorable backup of the original.

What happens under the hood

RenameTo reads the TIFF with the appropriate local macOS media or document framework, then writes a new WebP beside it. The file itself is not sent to a conversion server.

About the formats

TIFF is a lossless format common in print and archival workflows. WebP is a compact, web-first image format.

Questions, answered

Does my file get uploaded anywhere?

No. File processing happens on your Mac. RenameTo does use the network for license validation, trial activation, and update checks, but your source files are not part of those requests.

What happens to the original TIFF file?

RenameTo keeps a backup before processing. Undo restores the original alongside a format-changing output and does not delete that output. If the original name is already occupied, the restored copy gets “(restored)” in its name.

Can I convert a whole folder?

Yes. Rename multiple selected files in Finder and RenameTo queues each supported conversion, with a separate result and backup for every file.

Can I run the same conversion from a script?

Yes. The CLI command is: renameto webp *.tiff

Related conversions

Convert TIFF to AVIF

report.tiff → report.avif

Convert TIFF to BMP

report.tiff → report.bmp

Convert TIFF to GIF

report.tiff → report.gif

Convert TIFF to HEIC

report.tiff → report.heic

Convert Sony ARW to WebP

report.arw → report.webp

Convert AVIF to WebP

report.avif → report.webp

Convert BMP to WebP

report.bmp → report.webp

Convert Canon CR2 to WebP

report.cr2 → report.webp

Looking for another format? Browse every conversion.