Smolr is unclaimed —
S
Smolr
Make images Smolr·smolr.io
Smolr is a free, open-source macOS app that compresses and converts image files to make them smaller and more usable. It supports common formats like JPEG, PNG, and GIF as well as modern formats such as WebP, AVIF, and JPEG XL. All image processing happens locally on the user's Mac, so files never leave the device.
What it's for
Convert images to modern formats like WebP, AVIF, and JPEG XLOptimize/compress image file sizeBatch convert multiple image files at onceStrip non-essential metadata from imagesLossless or quality-controlled image conversion
Features 13
- Batch processing of multiple files
- Controlled quality reduction with optimization profiles
- Custom output filename suffix
- Customizable default settings
- Drag & drop file/folder support
- Image compression/optimization
- Image format conversion (JPEG, PNG, GIF, WebP, AVIF, JPEG XL)
- Local, on-device processing (no upload)
- Lossless conversion option
- Metadata stripping to reduce file size
- Optimization profiles: Fast, Balanced, Quality, Size
- Quality slider (50-100%)
- Support for ARM64 and Intel Macs
At a glance
free tieropen source
TypeDesktop app
DeploymentInstalled (local)
PlatformsmacOS
CompanyJimmy Houle
Pricing
App is entirely free; users can optionally 'name their price' to support development, and can also support via buymeacoffee. No fixed paid tiers are listed.
FreeFree
Free to download and use; optional 'name your price' payment to support development is not a required cost.