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https://github.com/JayXon/Leanify
lightweight lossless file minifier/optimizer
https://github.com/JayXon/Leanify
compression data-uri epub fb2 gzip ico jpeg lossless minifier minify mozjpeg optimizer png recompress svg swf tar xml zip zopfli
Last synced: 2 months ago
JSON representation
lightweight lossless file minifier/optimizer
- Host: GitHub
- URL: https://github.com/JayXon/Leanify
- Owner: JayXon
- License: mit
- Created: 2013-02-07T19:24:39.000Z (almost 12 years ago)
- Default Branch: master
- Last Pushed: 2024-04-22T10:29:50.000Z (10 months ago)
- Last Synced: 2024-11-17T00:00:52.141Z (3 months ago)
- Topics: compression, data-uri, epub, fb2, gzip, ico, jpeg, lossless, minifier, minify, mozjpeg, optimizer, png, recompress, svg, swf, tar, xml, zip, zopfli
- Language: C++
- Homepage:
- Size: 1.78 MB
- Stars: 831
- Watchers: 38
- Forks: 75
- Open Issues: 22
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
- Security: SECURITY.md
Awesome Lists containing this project
README
Leanify [](https://github.com/JayXon/Leanify/actions) [](https://ci.appveyor.com/project/JayXon/leanify) [](https://github.com/JayXon/Leanify/releases) [](https://github.com/JayXon/Leanify/releases/latest) [](LICENSE)
=======
Leanify is a lightweight lossless file minifier/optimizer. It removes unnecessary data (debug information, comments, metadata, etc.) and recompress the file to reduce file size. It will not reduce image quality at all.
## Features
* Support recursive minifying. (e.g. a [PNG] inside an [APK] inside a [ZIP])
* Support a wide variety of [file formats](#file-formats).
* Lightweight, one file, under 1MB, no external dependency.
* Everything is done in memory, no temporary files.
* Cross-Platform, support Windows, Linux, Mac.
* Support traverse directory recursively.
* Ability to identify file format by its data instead of name.
## Disclaimer
I'm not respossible for any consequence of using Leanify.
**PLEASE BACKUP THE FILE BEFORE USING LEANIFY!**
## File Formats
#### APK file (.apk)
It is based on [ZIP].
Note that modifying files inside `APK` will break digital signature.
To install it, you'll have to sign it again.
If you don't want to modify any files inside `APK`, use `-d 1` option.
#### Comic book archive (.cbt, .cbz)
`cbt` is based on [tar]. `cbz` is based on [ZIP].
#### Microsoft Office document 2007-2013 (.docx, .xlsx, .pptx)
It is based on [XML] and [ZIP].
Office document 1997-2003 (.doc, .xls, .ppt) is not supported.
#### Data URI (.html .htm .js .css)
Looks for `data:image/*;base64` and leanify base64 encoded embedded image.
#### Design Web Format (.dwf, dwfx)
It is based on [ZIP].
#### EPUB file (.epub)
It is based on [ZIP].
#### FictionBook (.fb2, .fb2.zip)
It is based on [XML].
Leanify embedded images.
#### GFT file (.gft)
It's an image container format found in Tencent QQ.
Leanify the image inside.
#### gzip file (.gz, .tgz)
Leanify file inside and recompress deflate stream.
Remove all optional section: `FEXTRA`, `FNAME`, `FCOMMENT`, `FHCRC`.
#### Icon file (.ico)
Convert 256x256 BMP to [PNG].
Leanify [PNG] inside, if any.
#### Java archive (.jar)
It is based on [ZIP].
#### JPEG image (.jpeg, .jpg, .jpe, .jif, .jfif, .jfi, .thm)
Remove all application markers (e.g. `Exif` (use `--keep-exif` to keep it), `ICC profile`, `XMP`) and comments.
Optimize with `mozjpeg`.
#### Lua object file (.lua, .luac)
Remove all debugging information:
* Source name
* Line defined and last line defined
* Source line position list
* Local list
* Upvalue list
#### OpenDocument (.odt, .ods, .odp, .odb, .odg, .odf)
It is based on [XML] and [ZIP].
#### OpenRaster (.ora)
It is based on OpenDocument and [PNG].
#### PE file (.exe, .dll, .ocx, .scr, .cpl)
Leanify embedded resource.
Remove `Relocation Table` in executable file.
Remove undocumented `Rich Header`.
Overlap `PE Header` and `DOS Header`.
#### PNG image (.png, .apng)
Remove all ancillary chunks except for:
* `tRNS`: transparent information
* `fdAT`, `fcTL`, `acTL`: These chunks are used by `APNG`
* `npTc`: Android 9Patch images (*.9.png)
Optimize with `ZopfliPNG`.
#### RDB archive (.rdb)
It is an archive format found in Tencent QQ.
Leanify all files inside.
#### Flash file (.swf)
Leanify embedded images.
Recompress it with `LZMA`.
Remove Metadata Tag.
#### SVG image (.svg, .svgz)
It is based on [XML].
Remove metadata.
Shrink spaces in attributes.
Remove empty attributes.
Remove empty text element and container element.
#### tar archive (.tar)
Leanify all files inside.
#### XML document (.xml, .xsl, .xslt)
Remove all comments, unnecessary spaces, tabs, line breaks.
#### XPInstall (.xpi)
It is based on [ZIP].
Note that modifying files inside `xpi` will break digital signature.
To install it, you'll have to sign it again.
#### XPS document (.xps, .oxps)
It is based on [XML] and [ZIP].
#### ZIP archive (.zip)
Leanify all files inside and recompress deflate stream using [Zopfli](https://github.com/google/zopfli).
Use `STORE` method if `DEFLATE` makes file larger.
Remove extra field in `Local file header`.
Remove `Data descriptor structure`, write those information to `Local file header`.
Remove extra field and file comment in `Central directory file header`.
Remove comment in `End of central directory record`.
## Downloads
[Stable Releases](https://github.com/JayXon/Leanify/releases/)
[Windows Nightly Build](https://ci.appveyor.com/project/JayXon/leanify)
## Usage
```
Usage: leanify [options] paths
-i, --iteration More iterations produce better result, but
use more time, default is 15.
-d, --max_depth Maximum recursive depth, unlimited by default.
Set to 1 will disable recursive minifying.
-f, --fastmode Fast mode, no recompression.
-q, --quiet No output to stdout.
-v, --verbose Verbose output.
-p, --parallel Distribute all tasks to all CPUs.
--keep-exif Do not remove Exif.
```
## Compiling
#### Windows
* Visual Studio 2015+
Use Leanify.vcxproj
* gcc 5+
`build_gcc.bat` or `mingw32-make`
#### Linux, Mac
gcc 5+ or clang 3.6+
```
make
```
[APK]: #apk-file-apk
[PNG]: #png-image-png-apng
[tar]: #tar-archive-tar
[XML]: #xml-document-xml-xsl-xslt
[ZIP]: #zip-archive-zip