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Press for desktop

Smaller images.
A whole folder at a time.

Find large files, compare image quality, and convert to WebP, AVIF, JPEG XL, or JPEG. The audit and conversion run on your computer. No account needed.

Choose your download View source

Free for macOS, Windows, and Linux. Latest: v0.6.8.

Press 0.6.6 folder audit with six selected product-photo exports, a folder sidebar, and WebP conversion settings
Press 0.6.6 on macOS. Select files, choose a preset, and see the estimated saving before you convert. View full-size screenshot

From folder to finished files.

Check the quality before you commit to a batch.

  1. 01

    Open a folder

    Drop it on the window or pick it. Navigate with the folder sidebar and breadcrumbs, or include subfolders in your batch. The largest images appear first.

  2. 02

    Inspect the trade-off

    Choose a saved preset or set the format, quality, and maximum edge. Compare original and result at fitted size or true 1:1 pixels.

  3. 03

    Convert what matters

    Tick individual files or select the whole list. Convert acts on the selected files. Save copies under optimized/ or choose another destination. Review the files when the batch finishes.

The smaller file still has to look right.

Drag the divider across an image and zoom to 100% to check texture, edges, and small text. Adjust the quality before converting the folder. After a run, compare the saved outputs with their originals in the same view.

WebP
Fast, broadly useful output
AVIF
Compare size and fine detail
JPEG XL
Lossy or true lossless output
JPEG / Keep
Export JPEG or keep each source’s format
Press before-and-after comparison with a draggable split between the original and converted image
A real WebP preview at quality 80. Drag the divider to inspect both sides. View full-size screenshot

Review the files you actually wrote.

When conversion finishes, step through the saved outputs and compare each with its original. The thumbnail strip shows what each file saved, and Show in folder takes you to the output on disk.

Save your conversion settings as a preset for the next batch. The output folder and the choice to replace originals stay separate from the preset.

Press 0.6.6 reviewing six saved WebP outputs with a comparison divider and per-file savings
Saved results from six sample PNG exports. View full-size screenshot Capture details and photo credits

Download

Get Press for your computer.

Free and open source. No subscription for local tools.

macOS

Choose your Mac chip

Open the DMG and drag Press to Applications. Signed and notarized. You can also install with Homebrew:

brew install --cask IgorVaryvoda/press/press

Apple Silicon arm64 Intel x86_64

Not sure? Apple menu → About This Mac → look for Chip or Processor.

Windows

Windows x64 installer

Run the setup file. Press offers updates at launch; you choose when to download, apply, and restart. You can also install with Chocolatey:

choco install press

Download .exe x86_64

Linux

Linux x86-64

Use the .deb on Ubuntu 24.04, or make the AppImage executable and run it on other x86-64 Linux systems.

Download .deb Ubuntu 24.04 Download AppImage x86_64

chmod +x press_*.AppImage
For package-manager updates, use the signed APT repository.

Showing v0.6.8. See the release notes and signatures.

A few things to know.

Does Press upload my images?

Auditing, comparisons, and conversion stay on your computer. Images upload only when you use optional Sirv sync or run a hosted Sirv AI Studio tool. Local background removal and 4× upscaling run on macOS and Linux x64 after downloading their models.

Can it replace my originals?

By default, Press saves separate copies in optimized/. You can choose to replace originals instead; Press moves the originals into press-originals/ for recovery. Check the output setting before starting a batch.

Can I use it from the terminal?

Yes. press convert ./images --format jxl runs the same conversion without opening a window. WebP is the default; --format avif and --format jxl select those formats. Use --format jpeg for JPEG or --format same to keep each source’s format.