Similarity is an extremely useful program that helps you to reorganize your music and image collections and bring some order to them. It contains a tag editor, a tag converter, a powerful mechanism of searching duplicates (based both on the simple tag comparison and on complex algorithms of "acoustic fingerprint") for audio files and image files, a musical collection quality analysis system, a scripting engine. In the future, the functionality will be extending, gaining more and more useful capabilities.

The program support numerous music file formats (MP3, AAC, M4A, WMA, OGG, WAV, FLAC, APE, WV, MPC, OPUS, TTA, etc.), and the support for DirectShow, Microsoft Media Foundation and Apple QuickTime technologies makes this number truly unlimited thanks to third-party decoders!

The base functionality of the program is absolutely free, while the additional functions are available in Premium version.

The main functions

  • Three powerful audio comparing algorithms (tag based, content based and the precise algorithm).
  • Superior precise algorithm (very fast and precise) (Premium version only).
  • New fourth audio comparing algorithm for speedup huge collection scanning (more 100K files).
  • Built-in JavaScript engine with Similarity API (Extended features available in Premium version only).
  • Two image comparison algorithms.
  • Super-fast comparison methods. The program fully utilizes the power of any computer (multi-core) and features a thought-out cache system.
  • Acceleration of computing with the OpenCL technology (Premium version only).
  • An advanced musical collection quality analysis mechanism that includes a convenient and easy to use way to review results and to perform various sorting.
  • Supports all common music formats: MP3, OGG, WMA, AAC, M4A, FLAC, APE(Monkey Audio), WV(WavePack), MPC(MusePack), WMA, OPUS, TTA(True Audio) and many others.
  • Supports tags ID3v1, ID3v2, APEv2, WMA, Vorbis.
  • File spectrum and sonogram analysis graph (Premium version only).
  • A built-in tag editor (supports MP3, WMA).
  • File name and tag converter.
  • Automatically saves and restores the state of comparison on exit and restart of the program. You can interrupt the process at any time and continue with the next run (Premium version only).
  • With folder groups you can limit the comparison with specific folders; this is convenient when you need to compare your existing collection with potentially new files.
  • You can save your results to a file and restore them back for further processing (Premium version only).
  • Automatically marks files for deletion or moving. This helps to effortlessly clear duplicates (Premium version only).
  • 64-bit version available. Not only does the 64-bit version allow to compare really huge collections, it also speeds up the scan process. The amount of files you can process with it is only limited with the amount of available RAM.
  • All audio decoders are executed as separate processes, so in case of any problem with it, the main process remains intact and thus overall stability of work is not affected.
  • Supports virtually any file storage devices, disks, network folders, Windows 7 libraries.
  • User friendly and convenient interface.
  • Similarity multilingual application with full Unicode support. Currently available languages are: English, French, German, Spanish, Russian, Czech, Bosnian, Estonian, Italian, Danish, Indonesian, Korean, Dutch, Brazilian Portuguese, Polish, Greek, Chinese.
  • Many, many more.
Premium version
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