1. -Combines PNGOUT, OptiPNG, and DeflOpt to create the smallest PNGs -No image quality is lost — only file size -Converts JPG, GIF, TIFF, and BMP files to PNG -Ultra-configurable
  2. Experimental, fast Web PNG/JPG optimizer which offer lossless, visually lossless or lossy compression. it performs image reductions over iterations thanks to recursive multi-processing and multithreading systems.


  3. Online File Compressor is totally free online tool enabling you to compress image, video and PDF files. No registration and installation required, simply visit the webpage to compress file anytime you are available.
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  4. Trimage is a cross-platform GUI and command-line interface to optimize image files via optipng, advpng and jpegoptim, depending on the filetype. All image files are losslessy compressed on the highest available compression levels.
  5. Zipware has been designed to be simple, fast and stable to handle both small and large archives. Zipware also supports many Linux archive formats such as tar and gzip. Zipware is freeware and can be downloaded below.
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  6. JPEGmini is a patent-pending photo recompression technology, which significantly reduces the size of photographs without affecting their perceptual quality.
  7. Explzh for Windows is a file operation tool created with the concept of treating archive files, CD-ROM virtual disk images (ISO-9660 / ISO-13346), and FTP hosts as virtual folders and handling them like an explorer.
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    • FreeOpen Source
    • Windows
    • Linux
    zpaq is a free and open source incremental, journaling command-line archiver for Windows, Linux and Mac OS/X. Documentation can be found at: http://mattmahoney.net/dc/zpaqdoc.html The ZPAQ archive format is described by a specification -...
  8. OptiPNG is a command-line PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections.
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  9. FLIF is a novel lossless image format which outperforms PNG, lossless WebP, lossless BPG, lossless JPEG2000, and lossless JPEG XR in terms of compression ratio.
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  10. ?? Extract Archives: So you downloaded this file you can't open? Don't be fooled by the name — Archiver is a highly versatile unarchiver that can unpack pretty much any archive you throw at it.
  11. ApowerCompress is a free file compression tool which can help you compress images, videos and PDF files at a super fast speed. It supports JPG, JPEG, PNG, GIF, PNG, MP3, MOV, WMV, AVI, RMVB, 3GP, PDF, etc. format.
  12. 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
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    • Mac
    • Windows
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • ReactOS
    The world's best file compressor in the world. Start saving your time with the world's #1 compression software. Zip, protect, manage and share all your files quickly and easily.
    • FreeOpen Source
    • Linux
    • BSD
    GNU Gzip is a software application used for file compression and decompression. It is based on the DEFLATE algorithm, which is a combination of LZ77 and Huffman coding.
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