PixelPress image optimisation for WebP and AVIF

PixelPress WebP and AVIF image conversion tool for JPEG, PNG, WebP and AVIF images across Windows and Linux

Compress JPEG, PNG, WebP, and AVIF files into smaller WebP or AVIF website assets on your device. PixelPress keeps originals untouched, avoids uploads, and ships through the Microsoft Store for Windows plus a free Ubuntu and Debian release on GitHub.

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PixelPress Local WebP and AVIF
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Product concept

Smaller website images without uploading files to a server

PixelPress keeps website image optimization local: add files or folders, choose WebP and AVIF output, keep source images untouched, and publish lighter assets without sending client or product images to a browser service.

No upload Originals untouched WebP and AVIF exports Windows and Linux

Highlights

Designed for rapid batch image optimisation before publishing

Use PixelPress when image size, page speed, and a private local workflow are more important than another browser upload tool.

01

Local batch image optimizer

Compress website folders on your own machine. PixelPress reads JPEG, PNG, WebP, and AVIF sources without sending private images to a cloud service.

02

WebP and AVIF for web pages

Create modern output formats for faster pages, smaller assets, and better publishing control before a landing page, blog post, or product site ships.

03

Originals stay untouched

Optimized copies are written into an output folder while source images stay where they are, so your original files remain the source of truth.

04

Fresh or replaceable output folders

Create a fresh output folder for every run, or reuse a PixelPress-created output folder when repeated batches should stay tidy.

05

Resize large images for the web

Optionally scale images wider than 1920 pixels down for practical web output while preserving aspect ratio and leaving smaller images alone.

06

Windows Store plus free Linux release

Start free on Windows through the Microsoft Store, unlock Pro for larger Windows batches and AVIF output for £8.62, or use the free Ubuntu/Debian release from GitHub.

Workflow

From large source folders to optimised web assets

  1. 1

    Add image files

    On Windows, drag files or folders into PixelPress or use the pickers. On Linux, choose files or folders with the in-app picker buttons.

  2. 2

    Select output

    Select WebP, AVIF, or both, set quality, choose a separate output folder, and decide whether each run gets a fresh folder.

  3. 3

    Process locally

    Run the batch, watch progress, then open the output folder to review generated files, size savings, and conversion duration.

Why it helps

The entire conversion remains close to your project files

PixelPress is built for repeated website asset work: adjust quality, resize very wide images when useful, compare savings, and keep working without uploading private source images to third-party optimisers.

Privacy first Images remain on your own device, which is handy for client assets, unreleased product shots and local drafts.
Made for repeated batch processing Fresh run folders keep previous results available, while replace mode can reuse a PixelPress-created output folder for the same input.
Website-optimised formats WebP is the broad compatibility choice, and AVIF is available when your platform, runtime, and plan support it.
No account process Install from the Microsoft Store or download the Ubuntu/Debian release from GitHub, then start converting without registration, tokens, or a browser upload step.

Where it helps

Created for image tasks that slow websites

Website landing pages

Reduce hero images, feature screenshots, and visual assets before production.

Blogs and documentation

Convert large PNG and JPG folders into lighter article images without leaving your desktop.

Software screenshots

Make software screenshots ready for store listings, changelogs, tutorials and support pages.

Client projects

Optimise delivered image folders locally when source files must not be processed by third-party web tools.

Screenshots

Desktop workflow from input to final savings

Explore the PixelPress workflow and check the conversion screens before choosing the Windows app or Debian build for Linux.

Local file import

Add local files or folders and prepare the conversion without uploading.

Download

Pick Windows or the free Debian release for Linux

PixelPress ships for Windows and Ubuntu/Debian Linux. Windows uses the Microsoft Store with an optional Pro upgrade; Linux uses the free .deb package from the GitHub release repository.

Available today

Windows

Install PixelPress from the Microsoft Store on Windows. Start with the free edition and unlock Pro in the app when bigger AVIF batches are needed.

Open the Store
Free on Linux

Ubuntu and Debian release

Open the latest GitHub release, download the .deb package, and install the Linux edition with apt so dependencies are handled cleanly.

View Linux release
Docs

Repository and docs

The GitHub repository brings together Linux releases, issue forms, release notes and the PixelPress wiki for Windows and Linux users.

View on GitHub

Docs

Browse the PixelPress documentation

The GitHub wiki explains installation, local conversion, supported formats, output folders, Windows and Linux differences, PixelPress Pro, privacy, troubleshooting and bug reports.

Begin

First steps

Add files or folders, select formats, run a local conversion and check the optimised output.

Open guide
Set up

Install and update

Use the Microsoft Store on Windows, or install the Ubuntu/Debian package from GitHub on Linux.

Open guide
Convert images

Image conversion

See how batch conversion behaves, which files are processed and how PixelPress leaves originals untouched.

Open guide
Image formats

Formats and quality

Compare how JPG, PNG, WebP and AVIF behave, tune quality settings and choose sensible website outputs.

Open guide
Output folders

Output files and folders

Review output folder rules, naming, overwrite behaviour and how to keep source files untouched.

Open guide
Platforms

Windows and Linux

Compare Microsoft Store distribution, Ubuntu/Debian packages, drag and drop, picker behavior, updates, and Linux desktop notes.

Open guide
Pro upgrade

PixelPress Pro edition

See what Windows Pro unlocks, how Store entitlement works, and what to check if Pro does not activate.

Open guide
Privacy

Privacy and Local Files

Review what stays local, which preferences PixelPress can store, and what should never be attached to public issues.

Open guide
Need help

Troubleshooting

Check common conversion, permission, file format and Linux package issues before sending a bug report.

Open guide
Report

Reporting Bugs and Feature Requests

Use the public issue forms with version, platform, steps, input types, and no private customer or license data.

Open guide

Support

Send PixelPress bug reports or feature ideas

Use the GitHub issue forms for bug reports and feature ideas. Remove private images, customer files, licence details, passwords and other secrets before submitting.

Send bug report Suggest a feature Read the issue guide

Plans

Windows Pro is optional; Linux remains free

No subscription and no account are required. Install PixelPress Free from the Microsoft Store for Windows, unlock Pro inside the app when larger Windows batches need AVIF, or use the Ubuntu/Debian release from GitHub.

Free to use

PixelPress Free edition

Free to use Microsoft Store

A fast method to optimise small batches of website images locally.

  • Up to 50 images per batch
  • Includes WebP output
  • AVIF output not included
  • No registration required
Get free version

Pro upgrade

PixelPress Pro edition

£8.62 In-app Pro upgrade

For larger Windows batches, AVIF output, and repeat website optimization work.

  • Unlimited images per batch
  • Includes WebP output
  • Includes AVIF output
  • Unlock within the app
Get the app

Frequently Asked Questions

Quick answers before compressing your image folder

Is PixelPress truly offline?

Yes. PixelPress runs locally on your device, so images stay on your hardware instead of being uploaded to a cloud service.

Is the Linux Debian release free?

Yes. The Debian release for Linux is always free and is linked from the PixelPress GitHub releases.

Which source formats does PixelPress read

PixelPress is intended for JPEG, PNG, WebP, and AVIF sources when the bundled runtime can read them.

What is included in PixelPress Free on Windows

Windows Free focuses on WebP output and supports up to 50 images per run.

Changes with PixelPress Pro

On Windows, Pro removes the 50-image limit and unlocks AVIF output through the Microsoft Store in-app upgrade: £8.62.

Why is AVIF disabled

AVIF can be disabled when the current runtime does not support AVIF output or when Windows Free is active, where AVIF is a Pro feature.

Are original files overwritten

No. PixelPress writes optimized copies into a separate output folder and keeps original files untouched.

Can PixelPress resize large images

Yes. When Resize large images is enabled, images wider than 1920 pixels are scaled down while smaller images keep their original dimensions.

Where is the PixelPress documentation?

The GitHub wiki covers installation, converting images, supported formats, output folders, Windows and Linux differences, PixelPress Pro, privacy, troubleshooting, and bug reports.

How do I report a PixelPress bug?

Submit bugs through the PixelPress GitHub form, and avoid attaching private images, customer files, licence details, passwords or other secrets.

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Bottom line

Get the PixelPress WebP and AVIF converter before web images go live

Install the Windows app or open the free Ubuntu/Debian release, optimize your first local image batch, and keep your publishing workflow private, fast, and simple.

Get PixelPress