Make small photos go further.
Enlarge images for layouts, personal collections and creative projects. Compare edges and fine textures before choosing your final export.
Free & open source · For Windows
Small image.
Bigger
possibilities.
A free AI image upscaler for your desktop. Give photos, text and textures room to shine, with processing that stays on your PC.
Local processing. DirectML acceleration. Yours to use.
A little detail goes a long way.CLARITY IN ACTION
OriginalClarity upscale192 × 128 → 2048 × 1363 pxDrag to compare ↔
↗ AI image upscaling▣ Runs on your PC⌘ Open source€0 Free to use
The difference is in the details
Don’t take our word for it.
Take a closer look.
Explore real Clarity results. Move the slider to compare each small source image with its upscaled counterpart.
OriginalClarity upscalePhoto: Dids / Pexels. Both images fit the same frame. Preview resized for the web.
Your images. Your computer.
More room for
what you create.
Give every line some space.
Resize screenshots, UI captures and graphics. Choose AI enhancement or a classic filter to suit your source, then check small text for accuracy.
Bring your materials closer.
Scale texture images for your next scene. Inspect grain, seams and repeating details in your material before putting the result to work.
Two ways to go bigger
Intelligent detail.
Precise control.
Some images need a little imagination. Others need a predictable resize. Clarity gives you both approaches in one desktop app.
Explore the open-source project ↗AI upscaling
Use neural models to estimate finer detail when enlarging an image. Clarity 1.1 focuses on the DAT architecture and runs inference through DirectML.
Classic resizing
Use point, bilinear, bicubic or cubic B-spline resampling when you want control over interpolation without AI-generated detail.
Local GPU processing
Put your compatible graphics hardware to work. Processing stays on your machine, with speed and memory use depending on your image and selected model.
From small to something more
A straightforward workflow.
Open your image.
Install Clarity on Windows and choose the image you want to enlarge.
Choose your approach.
Select an AI model for estimated detail or a classic filter for controlled resizing.
Inspect. Save. Create.
Check the result at its intended size, save your image and get back to your project.
Free desktop software
Your next image
has room to grow.
Get Clarity for Windows. Keep your workflow local.
Clarity for Windows
Installer hosted on Patreon.
Supporting development is optional.
From the studio
A clearer view of what’s new.
Clarity Becomes Open Source as Installer Downloads Move to Patreon
Explore Clarity’s source code on GitHub. Official Windows installer downloads now live on Patreon, while image processing stays local and free.
Read the update ↗Clarity 1.1 Cuts Application Size by 83% and Introduces a New Interface
Clarity 1.1 reduces app size from 818 MB to 138 MB, halves reported RAM usage, refreshes the interface and improves texture-model performance.
Read the update ↗Clarity 1.0 Is Now Available: Free, Local Image Upscaling for Windows
Meet Clarity, the free Windows image upscaler from Pterosoft Studio, with local AI enhancement, classic resizing and DirectML GPU acceleration.
Read the update ↗A few useful answers
Before you
get started.
Clarity is a desktop image upscaler from Pterosoft Studio.
Is Clarity really free?
Yes. Clarity is free to use, and its source code is available on GitHub. Financial support through Patreon is optional.
Does Clarity upload my images?
Image processing runs locally on your Windows PC. Your images do not need to be sent to an online upscaling service.
Do I need an NVIDIA GPU?
Clarity uses DirectML for GPU acceleration, with support across compatible GPU vendors. Performance depends on your hardware, the model and the size of your image.
Can I upscale game textures and text?
Yes. Clarity supports workflows for photographs, text and game textures. Inspect AI-generated details carefully, especially lettering. For exact resampling without inferred detail, choose a classic resize filter.
Does AI recover the original missing detail?
AI estimates plausible detail from the source image. It can also introduce artifacts or change small features. Compare the result with the original, and do not treat AI enhancement as evidence of what was present in the scene.
Where can I download Clarity or report a problem?
Get the Windows installer from the downloads page. To report a reproducible issue or explore the source, visit Clarity on GitHub.
Small studio. Better tools. Together.
If Clarity earns a place in your workflow, help us keep improving it. Optional contributions support development, testing and maintenance.