Klarity

Overview

Klarity is a free desktop app for restoring images and video on Linux and Windows. It is best suited to creators and editors who want local processing, multiple restoration modes, and a command-line option alongside a graphical interface. Its breadth is a strong fit for a no-subscription tool, but video work depends on FFmpeg and first use requires model downloads.

Key features

Klarity offers denoising, deblurring, upscaling, cleaning, and full restoration, with additional frame-generation, clean-frame-generation, and full-frame-generation modes for video. That range lets users choose a more focused treatment or combine tasks, rather than relying on a single enhancement mode. Upscaling reaches 4x; CPU processing works without a GPU, though the minimum requirements are a 2-core CPU, 4 GB RAM, and 2 GB storage.

Heavy mode downloads about 888 MB of models and targets the best quality. Lite downloads about 204 MB and is described as 20x faster, making it the more practical choice when download size or processing speed matters more than the Heavy mode’s quality target. Models download on first use, so offline use still requires an initial connection to obtain them.

Image formats include JPG, JPEG, PNG, BMP, TIFF, TIF, and WebP. Video support covers MP4, AVI, MOV, MKV, WebM, FLV, WMV, and M4V, but processing video requires FFmpeg. The graphical interface suits users who prefer a desktop workflow, while interactive and direct command-line modes give more control to users comfortable with CLI operation.

Klarity uses NAFNet for denoising and deblurring, Real-HAT-GAN or Real-ESRGAN for upscaling, and RIFE for frame generation. It is released under MIT, with separate licenses applying to its model components. CPU-only desktop binaries are available for Linux x86_64 and Windows x86_64.

Pricing

Klarity costs nothing. The free plan includes the local, offline image and video restoration tool, with no subscription fee; there is no free trial because the product is free. This makes it a straightforward choice for individuals who want desktop restoration without recurring charges. The trade-off is the setup overhead of model downloads and, for video, FFmpeg rather than a hosted workflow that requires less local configuration.

Platforms

Klarity is a desktop app for Linux and Windows. The latest CPU-only desktop binaries target Linux x86_64 and Windows x86_64; CPU processing means a GPU is not required.

Who it's for

Klarity suits creators, editors, and other users who want a free local tool for enhancing images or video and value having both a GUI and CLI. It is less suitable for someone seeking video processing without installing FFmpeg, or for users who would rather avoid model downloads and local setup.

Pros and cons

• Pros: The free plan combines image and video restoration modes, up to 4x upscaling, and frame interpolation without a subscription.
• Pros: CPU processing and Linux and Windows desktop binaries make it usable without a GPU on either supported platform.
• Cons: Video processing requires FFmpeg, adding a dependency that image-only users do not need.
• Cons: Models download on first use; Heavy mode needs about 888 MB of model downloads, while even Lite requires about 204 MB.

Alternatives

For another free desktop option, Vapourkit is free and open source, with Linux and Windows support. Aiarty Video Enhancer is worth considering for macOS users or those who want a trial: its free version limits videos to under 120 seconds, adds watermarks, and excludes batch export, while its Standard License costs $79 a year and is billed yearly. RestoraX is a free, open-source MIT option for self-hosted GPU or CPU processing, and may suit users who prefer that deployment model.

TensorPix is a web, API, and self-hosted alternative with a free tier that provides weekly login credits, up to 720p input, and 1 GB of storage. HitPaw VikPea supports more platforms, including mobile and web, and offers a one-month Windows license for $43.19 a month with automatic renewal. Intelion Video Lab is a Windows and self-hosted option for on-premise or secure hybrid cloud deployment, with custom pricing. SeedVR2 is another free option, supporting Linux, macOS, Windows, and self-hosted use. KwaFlux Video File Repair is a Windows alternative with a one-month license for $29.99 a month, automatically renewing monthly; taxes are excluded.

Browse more options in AI Video Restoration Software.

Verdict

Choose Klarity if you want a free Linux or Windows desktop tool that handles both image restoration and video enhancement locally, with CPU support and a broad choice of modes. Its main advantage is that breadth without subscription fees; look elsewhere if FFmpeg and model downloads make local setup inconvenient.