{"id":45656608,"url":"https://github.com/hexeption/fastpack","last_synced_at":"2026-03-02T20:00:39.288Z","repository":{"id":340354367,"uuid":"1165409164","full_name":"Hexeption/FastPack","owner":"Hexeption","description":"Texture atlas packer written in Rust. Native GUI as the primary interface, plus a full CLI. 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Native GUI as the primary interface, plus a full CLI and TUI. Designed as an open-source replacement for TexturePacker.\n\n\u003cimg width=\"800\" height=\"889\" alt=\"wDwJf1hcLi\" src=\"https://github.com/user-attachments/assets/215867c4-0fd8-44a4-8255-a943a4ec42c1\" /\u003e\n\n## Features\n\n**Packing**\n- MaxRects (5 heuristics), Grid, and Basic strip algorithms\n- Trim modes: None, Trim, Crop, CropKeepPos, Polygon (convex hull)\n- Extrusion, rotation, nine-patch metadata, pivot points\n- Alias detection — deduplicates pixel-identical sprites\n- Multipack — overflow sprites across multiple sheets\n- Multi-resolution scale variants with per-variant suffix\n\n**Export**\n- JSON Hash, JSON Array, Phaser 3, PixiJS\n- PNG (oxipng lossless), JPEG (mozjpeg), WebP, lossy PNG (imagequant)\n\n**GUI**\n- Real-time atlas preview\n- Collapsible sprite tree with thumbnail previews\n- Watch mode — repacks on file change\n- `.fpsheet` project files (TOML)\n- Multi-language UI\n\n## Install\n\nDownload the installer for your platform from the [releases page](https://github.com/Hexeption/FastPack/releases):\n\n- **Windows** — `fastpack-windows-x86_64.msi`\n- **macOS (Apple Silicon)** — `fastpack-macos-aarch64.dmg`\n- **macOS (Intel)** — `fastpack-macos-x86_64.dmg`\n- **Linux** — `fastpack-linux-x86_64.tar.gz`\n\nOr install from crates.io:\n\n```sh\ncargo install fastpack\n```\n\n## Usage\n\n```sh\n# Open the GUI (default when no subcommand is given)\nfastpack\n\n# Pack a directory of sprites\nfastpack pack sprites/ --output output/\n\n# Pack with options\nfastpack pack sprites/ --output output/ \\\n  --max-width 2048 --max-height 2048 \\\n  --trim-mode trim \\\n  --data-format phaser3 \\\n  --allow-rotation\n\n# Load settings from a project file\nfastpack pack --project atlas.fpsheet\n\n# Watch for changes and repack automatically\nfastpack watch sprites/ --output output/\n\n# Split an atlas back into individual sprites\nfastpack split atlas.png atlas.json --output-dir sprites/\n\n# Generate a default project file\nfastpack init --output atlas.fpsheet\n```\n\n## Project File\n\nSettings live in a `.fpsheet` TOML file:\n\n```toml\n[meta]\nversion = \"1\"\n\n[output]\nname = \"atlas\"\ndirectory = \"output/\"\ntexture_format = \"png\"\npixel_format = \"rgba8888\"\ndata_format = \"json_hash\"\nquality = 95\n\n[layout]\nmax_width = 4096\nmax_height = 4096\nsize_constraint = \"pot\"\nforce_square = false\nallow_rotation = true\npack_mode = \"good\"\nborder_padding = 2\nshape_padding = 2\n\n[sprites]\ntrim_mode = \"trim\"\ntrim_threshold = 1\nextrude = 0\ndetect_aliases = true\n\n[algorithm]\ntype = \"max_rects\"\nheuristic = \"best_short_side_fit\"\n\n[[variants]]\nscale = 1.0\nsuffix = \"@1x\"\nmode = \"smooth\"\n\n[[sources]]\npath = \"sprites/\"\nfilter = \"**/*.png\"\n```\n\n## Export Formats\n\n`data_format` in the project file or `--data-format` on the CLI accepts:\n\n- `json_hash` — TexturePacker-compatible JSON with frames as an object keyed by sprite ID. Default.\n- `json_array` — Same structure but frames as an array, each entry with a `filename` field.\n- `phaser3` — Single JSON file with a `textures` array. Compatible with `scene.load.multiatlas()`.\n- `pixijs` — JSON Hash format compatible with PixiJS sprite sheet loaders.\n\n## Building from Source\n\nRequires Rust 1.85+.\n\n```sh\ngit clone https://github.com/Hexeption/FastPack\ncd FastPack\ncargo build --release -p fastpack\n```\n\nThe binary is at `target/release/fastpack`.\n\n## License\n\nLicensed under [MIT](LICENSE).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhexeption%2Ffastpack","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhexeption%2Ffastpack","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhexeption%2Ffastpack/lists"}