Show HN: Kiln – a fast, native batch image processor
a day ago
- Kiln is a desktop app for batch converting, resizing, compressing, and renaming images.
- It supports Windows (beta), Linux (beta), and macOS (coming soon).
- Users can create reusable pipelines with operations like resize, convert, watermark, and more, in any order.
- Processing is parallel by default, utilizing all CPU cores for efficiency.
- It reads JPEG, PNG, WebP, AVIF, HEIC, TIFF, BMP, GIF and writes to JPEG, PNG, WebP, AVIF, TIFF with quality control.
- Originals are never modified; output goes to a separate directory.
- Filename templates use tokens like {name}, {counter}, {width}, {date} with options for collision handling.
- The app is fully offline with no telemetry or account required.
- Performance benchmarks show Kiln is faster than XnConvert in various test scenarios.
- Planned features include RAW input, watch folders, pre-run preview, and a CLI tool.
- Public beta is free; future pricing is a one-time license per major version.