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Apps with 'Lossless Compression' feature

  1. Fast and compact image viewer/converter trying to be simple for beginners and powerful for professionals. Many supported file formats and features.
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    • BSD
    FLAC stands for Free Lossless Audio Codec, an audio format similar to MP3, but lossless, meaning that audio is compressed in FLAC without any loss in quality.
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  2. Saving images for web/email/other media with the best compression ratio and quality is a difficult task if you don’t have the right tools. Choosing the right format then choosing the right parameters are the key factors of smaller files.
  3. ImageOptim is excellent for publishing images on the web (easily shrinks images “Saved for Web” in Photoshop). It's useful for making Mac and iPhone/iPad applications smaller (if you configure Xcode to allow better optimization).
  4. FileOptimizer is a lossless file size optimizer supporting AIR, APK, APNG APPX, BMP, CBZ, DOCX, DLL, EPUB, EXE, GIF, GZ, ICO, JAR, JPEG, MNG, MP3, MPP, PNG, PPTX, ODT, OGG, OGV, PDF, PUB, SCR, SWF, TIF, VSD, WEBP, XAP, XLSX, and ZIP file formats among others.
    • FreeOpen Source
    • Mac
    • Windows
    • Linux
    • Android
    The Matroska Multimedia Container is an open standard free container format, a file format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file.
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  5. ActivePresenter is a solution for creating screencast videos, handouts, manuals, documentation, and interactive training presentations.
  6. FreeArc is a free and open source file archiver developed by Bulat Ziganshin. It uses LZMA, PPMD, TrueAudio and GRzip algorithms with automatic switching by file type, and also uses set of filters—for instance it can remove repetitions from text.

    Discontinued

    Latest alpha version from August 2012 - http://freearc.org/history/changelog_full.htm

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  7. WavPack is a completely open audio compression format providing lossless, high-quality lossy, and a unique hybrid compression mode.
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  8. -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
  9. Fast Picture Viewer with compact UI that can be hidden. Features image effects, galleries, EXIF, Image compression and more. The application can automatically adjusts itself to your screen. Clean, free, fast. No bloated UI. No annoying pop-ups.
  10. 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.
  11. DVDFab HD Decrypter is a simple version of DVDFab DVD Copy and DVDFab Blu-ray Copy which can remove all the DVD protections, part of Blu-ray protections, and copy the DVD/Blu-ray to your hard drive.
  12. 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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  13. 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.