Piew is free, fast and light-weight PROGRESS 4GL/ABL code editor for Windows with some basic and additional features that support syntax highlighting. Why another editor? Sometime you don't want load whole PROGRESS environment just for small change, for source viewing or maybe you want use some features that are not available in basic PROGRESS editor. Free for personal, business or commercial use.


  • basic editor functions
  • tabbed interface (multiple opened files at one time)
  • syntax highlighting for PROGRESS, HTML, XML, JSON, SQL files (comments, numbers, keywords, strings)
  • highlight occurrence of double-clicked word or define your own string in document
  • auto case keywords (lower, UPPER, Title)
  • auto complete
  • annotations inside editor
  • insert Timestamp, Filename, File contents, Defined text (e.g. headers)
  • drag & drop files
  • drag & drop text editing
  • write protected mode (to avoid accidental overwrite)
  • basic regular expression search and replace
  • find next/previous word under cursor (without search dialog)
  • useful word, line and block editing shortcuts
  • move lines
  • hide lines
  • rectangular selection (Alt + Mouse)
  • multiple selections with (Ctrl + Mouse)
  • simultaneously typing into Rectangular selections or multiple selections
  • zoom functions
  • (un)indenting
  • (un)commenting, 3 comment styles (Multi, Block, Sigle line)
  • auto indent
  • file explorer with powerful search ability (regex, subfolders, propath)
  • PROGRESS source beautify (auto indenting blocks)
  • XML beautifier
  • you can automatically remove comments from source code
  • you can automatically remove empty lines from source code
  • auto case source (if was written with no case)
  • align DEFINE VARIABLE, ASSIGN lines (beautify)
  • check syntax, run and compile source in PROGRESS environment
  • direct run Data Dictionary, Procedure Editor, AppBuilder, Data Administration and Application Compiler from editor
  • bookmarks
  • export source as HTML
  • color (syntax highlighting) or black & white printing
  • show line numbers
  • show whitespace
  • always on top
  • track changes in margin
  • if you have selected some word, you can press F1 to call PROGRESS internal help from this editor. (You must define path to PROGRESS help files lgrfeng.hlp or lgrfeng.chm)
  • supports Unix (LF), Windows (CRLF) or Mac (CR) line endings
  • restore last opened files on start
  • open selected string as new file (searching in Propath)
  • option to open files in "Write protected mode"
  • code explorer - fast navigation through Procedures, Functions, Triggers, Temp-Tables tree
  • long line marker
  • aliases (abbreviations)
  • outside changes detection
  • brace highlighting
  • UTF-8 encoding support
  • full screen editing
  • run external tools from editor
  • custom profiles
  • autocomplete dialog for database, table and field names
  • database browser, with data type information
  • support for reading Progress data definitions (*.df files) for database browser / autocomplete
  • projects support
  • windows docking
  • clone window (window splitter)
  • task marker - highlighting special words in comments
  • PL (Procedure Library) viewer and extractor

Read more in Readme.txt !


Database autocomplete dialog, database explorer (from offline dump)

Windows docking, project files support

Download 1.8 MB, Installer (exe)

Download 2.1 MB, Portable (zip)

Current version 5.80 (01.10.2021)

What's new in this release:


  • Docking system (3.1.0)
  • Main dll (5.1.4) Additional dll PiewLex.dll or PiewLex32.dll is added to main app directory


  • Bad character insert (DC3) after checking syntax or compiling by Ctrl+S
  • Manual switch of the SQL highlighter

Tip: Existing users can add .pl to settings as known PROGRESS file extensions and register it. PL files will have orange icon and on double-click Piew show content of the library

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