epub2azw3

epub2azw3

EPUB to AZW3 converter - a standalone Go implementation for converting EPUB ebooks to Amazon Kindle compatible AZW3 (KF8) format without external dependencies like Calibre.

Installation

go install github.com/yuanying/epub2azw3/cmd/epub2azw3@latest

Usage

epub2azw3 [flags] <input.epub>

Flags

• -o, --output: output file path (default: <input>.azw3)
• -q, --quality: JPEG quality (60-100, default: 85)
• --max-image-size: max image size in KB (default: 127)
• --max-image-width: max image width in px (default: 600)
• --no-images: remove all images from output
• -l, --log-level: error|warn|info|debug (default: info)
• --log-format: text|json (default: text)
• --strict: treat recoverable warnings as errors
• -v, --verbose: enable verbose output (forces debug logging)

Development

Build

go build -o epub2azw3 ./cmd/epub2azw3

Test

go test ./...

Lint

go tool golangci-lint run ./...