{"id":50516467,"url":"https://github.com/fabianwimberger/img-convert","last_synced_at":"2026-06-03T00:31:13.765Z","repository":{"id":356581088,"uuid":"1233176155","full_name":"fabianwimberger/img-convert","owner":"fabianwimberger","description":"Cross-platform desktop GUI for batch image conversion to JPG, AVIF, JXL, and HEIC. 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Doing it through the encoder CLIs is fast but tedious; doing it through Photoshop or Lightroom is slow and heavy. This wraps the best-of-breed encoders (`cjpeg`, `avifenc`, `cjxl`, `heif-enc`) behind a small native UI so a folder can be batched in a few clicks, with EXIF passthrough and a JPEG → JXL lossless fast path.\n\n\u003cp align=\"center\"\u003e\n  \u003cimg src=\"assets/screenshot.png\" width=\"100%\" alt=\"img-convert UI\"\u003e\n  \u003cbr\u003e\u003cem\u003ePick a folder, choose format, resolution and quality, hit Convert — outputs land in \u003ccode\u003efolder/converted/\u003c/code\u003e\u003c/em\u003e\n\u003c/p\u003e\n\n## Features\n\n- **Batch processing** — convert an entire folder in parallel\n- **Format choice** — JPG (`cjpeg`), AVIF (`avifenc`), JXL (`cjxl`), HEIC (`heif-enc`)\n- **Wide input support** — JPEG, PNG, TIFF, WebP, GIF, BMP, ICO, TGA, QOI, PNM, EXR, HDR, DDS, Farbfeld\n- **Lanczos3 resampling** — high-quality resize at the short side\n- **JPEG → JXL fast path** — lossless transcode when no resize is needed\n- **EXIF preservation** — copied via `exiftool` when available\n- **Drag-and-drop** folder selection\n- **Light / dark theme**\n- **Cross-platform** — Linux, macOS, Windows\n\n## Pipeline\n\n```mermaid\nflowchart LR\n    S[Source images] --\u003e D[Decode\u003cbr/\u003eimage-rs]\n    D --\u003e R[Lanczos3 resize]\n    R --\u003e E[Encode\u003cbr/\u003ecjpeg / avifenc / cjxl / heif-enc]\n    E --\u003e X[EXIF copy\u003cbr/\u003eexiftool]\n    X --\u003e O[folder/converted/*]\n```\n\n## Quick Start\n\n```bash\n# Build\ncargo build --release\n\n# Run\n./target/release/img-convert\n```\n\n## Install\n\nInstall into `~/.local/bin/img-convert`:\n\n```bash\ncargo install --path . --root ~/.local --force\n```\n\nOr use cargo's default location (`~/.cargo/bin/img-convert`):\n\n```bash\ncargo install --path . --force\n```\n\n## External Encoders\n\nOnly the encoders for formats you intend to use need to be on `$PATH`. The GUI shows availability and disables formats whose encoder is missing.\n\n| Format | Command   | Typical package                   |\n| ------ | --------- | --------------------------------- |\n| JPG    | `cjpeg`   | `mozjpeg` / `libjpeg-turbo`       |\n| AVIF   | `avifenc` | `libavif` / `libavif-utils`       |\n| JXL    | `cjxl`    | `libjxl` / `jpeg-xl`              |\n| HEIC   | `heif-enc`| `libheif` / `libheif-tools`       |\n| EXIF   | `exiftool`| `perl-image-exiftool` / `exiftool`|\n\n## Configuration\n\n| Setting    | Options                                              |\n| ---------- | ---------------------------------------------------- |\n| Format     | JPG / AVIF / JXL / HEIC                              |\n| Resolution | Original / High (3000 px) / Low (1440 px) short side |\n| Quality    | High / Medium / Low (per-format quality mapping)     |\n| EXIF       | Preserve / strip                                     |\n\n## Contributing\n\nSee [CONTRIBUTING.md](CONTRIBUTING.md). Please report security issues privately — see [SECURITY.md](SECURITY.md).\n\n## License\n\nMIT License — see [LICENSE](LICENSE) file.\n\n### Third-Party Tools\n\n| Tool      | License                                                                  | Source                                  |\n| --------- | ------------------------------------------------------------------------ | --------------------------------------- |\n| mozjpeg   | [BSD-3-Clause / IJG](https://github.com/mozilla/mozjpeg/blob/master/LICENSE.md) | https://github.com/mozilla/mozjpeg      |\n| libavif   | [BSD-2-Clause](https://github.com/AOMediaCodec/libavif/blob/main/LICENSE) | https://github.com/AOMediaCodec/libavif |\n| libjxl    | [BSD-3-Clause](https://github.com/libjxl/libjxl/blob/main/LICENSE)        | https://github.com/libjxl/libjxl        |\n| libheif   | [LGPL-3.0+](https://github.com/strukturag/libheif/blob/master/COPYING)    | https://github.com/strukturag/libheif   |\n| ExifTool  | [Artistic / GPL](https://exiftool.org/#license)                          | https://exiftool.org/                   |\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffabianwimberger%2Fimg-convert","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffabianwimberger%2Fimg-convert","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffabianwimberger%2Fimg-convert/lists"}