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OWASP EnDe is an Encoder, Decoder, Converter, Transformer, Calculator, for various codings used in the wild wide web. Collection of functions (herein called actions) for various codings, encodings, decodings and convertions. The aim is/was mainly driven by the requirements for HTTP/HTML-based functionality.


Quick Installation



Abstract: EnDe is a collection of tools (built-in in the browser) for data encoding/decoding and conversion.
The tools are:




Just a short list of supported conversions:
:ASCII↔Unicode, text↔URL-encoded, text↔Base64, text↔uuencode, MD4, MD5, SHA, SHA256, CRC-16, AES, Block TEA, Unix Timestamp↔Windows Timestamp↔ASP.NET Timestamp, dezimal dottet IP↔IPv6↔Integer↔binary, ... where text means any valid Unicode data


OWASP EnDe is free to use. It is licensed under the GPL v2 license.


OWASP EnDe provides:

  • Encoder/Decoder
  • Timestamp en-/decoder
  • IP en-/decoder
  • RegEx beautifier


Project Leader

Achim Hoffmann



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News and Events

  • [2015] functions for en-/decoding APEX, DWR, GWT
  • [2014] more special unicode characters (combining diaresis, diacrit, etc.)
  • [2013] minor improvments
  • [2012] latest tested and stable tarball

Please see https://github.com/OWASP/EnDe for latest version.

In Print



Click here for the FAQ document.



EnDe is developed by a worldwide team of volunteers. The primary contributors to date have been:

  • xxx

Road Map and Getting Involved

As of July, the priorities are:

  • Abstarct

EnDe consist of two parts: the core library (API) and the browser interface (GUI). The issues are mapped to either of these categories.


OWASP EnDe Project - Encoder, Decoder, Converter, Transformer, Calculator

Collection of functions for various codings, encodings, decodings and convertions used in the wild wide web. The aim is/was mainly driven by the requirements for HTTP/HTML-based functionality. Copy\&paste must be possible within a browser and functions should be called by just one click.

Current State

EnDe is currently (2012 .. 2015) stable according the offered functionality.

Pending ..

Pending or Planed Requirements / Improvements


  • implementing more hashes like Adler-32, Ghost, Haval, Tiger, …
  • implementing more encryptions like CAST, DES, TrippleDES, GOST, Loki97, RC2, SaferPlus, Serpent, TwoFish
  • implementing codings like UTF-EBCDIC
  • building an object oriented API beside the existing procedural/functional API


  • replace the hardcoded dispatcher with a generated one
  • build stand-alone applicaion with XUL
  • build Firefox add-on

Fixed / Completed

  • 12/2016 moved from https://github.com/EnDe/EnDe to https://github.com/OWASP/EnDe
  • 12/2012 EnDe.lib.zap for usage in ZAP
  • 06/2012 setup at github.com
  • 12/2011 implementing BlowFish encryption
  • 7/2009 selecting license (GPL2, CC-2.5, or a mix?)
  • 5/2009 generating some documentation
  • 7/2008 implementing sha384, sha512 encryption

Involvement in the development and promotion of EnDe is actively encouraged! You do not have to be a security expert in order to contribute. Some of the ways you can help:

  • xxx

Project About


Category:OWASP Project Category:OWASP_Builders Category:OWASP_Defenders Category:OWASP_Document Category:OWASP Tool Category:OWASP Download


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