base64 | 
      base64, uuencode, yencode encoder and decoder | 
    
    
      calendar | 
      date & time operations. In development. | 
    
    
      cmdline | 
      command line argument processor similar to opt | 
    
    
      comm | 
      socket based 'send'. | 
    
    
      counter | 
      Event counters, interval timers, and histogram display | 
    
    
      crc | 
      Calculation of various CRC checksums | 
    
    
      csv | 
      Handling of comma separated values | 
    
    
     des | 
      Tcl implementation of the Data Encryption Standard | 
    
    
      dns | 
      Tcl implementations of the DNS protocol | 
    
    
      doctools | 
      Writing manpages, the tcl way | 
    
    
      exif | 
      Handling of EXIF information generated by digital cameras | 
    
    
      fileutil | 
      Tcl implementations of some standard Unix
      utilities | 
    
    
      ftp | 
      FTP client library | 
    
    
      ftpd | 
      FTP server | 
    
    
      html | 
      HTML generation procedures.  This uses ncgi. | 
    
    
      htmlparse | 
      Parsing of HTML strings. | 
    
    
      irc | 
      Tcl implementation of the IRC protocol. | 
    
    
      javascript | 
      Javascript generation procedures. | 
    
    
      log | 
      General logging and tracing facility. | 
    
    
      math | 
      common math functions like min, max, and others | 
    
    
      md4 | 
      MD4 hashes | 
    
    
      md5 | 
      MD5 hashes | 
    
    
      mime | 
      MIME encoder and decoder | 
    
    
      ncgi | 
      new CGI processing module | 
    
    
      nntp | 
      NNTP (news) client | 
    
    
      ntp | 
      time clients | 
    
    
      pop3 | 
      POP3 protocol implementation | 
    
    
      pop3d | 
      POP3 server implementation and helper packages | 
    
    
      profiler | 
      function level Tcl source code profiler | 
    
    
      report | 
      Tabular ascii reporting. Interoperates with struct::matrix. | 
    
    
      sha1 | 
      Secure Hash Algorithm | 
    
    
      smtpd | 
      SMTP server implementation | 
    
      soundex | 
      Phonetic string comparison | 
    
    
      struct | 
      Tcl implementations of common data structures (tree, graph, queue, matrix, pool, skiplist, priority queue, records, list operations) | 
    
    
      stooop | 
      Pure Tcl OO package | 
    
    
      textutil | 
      Text processing utilities, including a macro processor | 
    
    
      uri | 
      URI parsing module |