When comparing DbForge Studio for PostgreSQL vs HeidiSQL, the Slant community recommends HeidiSQL for most people. In the question“What are the best relational database design and modelling tools?” HeidiSQL is ranked 4th while DbForge Studio for PostgreSQL is ranked 23rd. The most important reason people chose HeidiSQL is:
Licensed under GNU GPL.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Advanced code completion features
Prompting the names of existing materialized views, as well as context prompting of database objects
Pro Query Profiler
Helpful diagrams of query execution, and also the list of operations that takes place on the server
Pro Data Editor
The data can be edited in the same way as with Google Sheets/MS Excel or in the card view mode.
Pro High execution speed
Downloading the main_ExceptionFrames.sql file of 100 Mb in size ~ 1 min
Pro SQL Code Formatter
Automatic formatting of SQL Code based on user-chosen code styles
Pro Data Export/Import
10+ file format support, including Google Sheets
Pro Master-Detail Browser
The 'design view' for setting up relations between tables, smart sorting, and filtering
Pro Code complition
Prompting keywords for functions etc.
Pro Cached update mode in Data Editor
Allows to control data editing within database objects
Pro Generate Script AS feature
Allows generating a script for the CREATE statements for specific database objects (views, materialized views, triggers, functions, procedures)
Pro Object Explorer
Provides a quick navigation through the object tree
Pro File format support
Dozen of file formats are supported, including Google sheets.
Pro Free
Licensed under GNU GPL.
Pro Portable
Alongside the possibility of downloading the installer and sourcecode, a portable version of the software is available.
Pro Great UI and ease of use
HeidiSQL has a comprehensive and intuitive interface.
Pro Syntax completion

Pro Lightweight
Pro Great user management
The user manager of HeidiSQL can easily set privileges on a per-database level or give access to only certain commands.
Pro Data synchronization
HeidiSQL can compare and synchronize your data and structure between local and remote databases.
Pro SSH tunnel
HeidiSQL allows connecting to your MySQL database via SSH tunnel.
Pro Connect to servers via command line
You can use command line parameters to automate connections.
Pro Works fine with Wine under Linux
Cons
Con Data export
Data export does an individual insert per row of data, which is a little inefficient.
Con Can be buggy
HeidiSQL is known to have some bugs that results in crashes.
Con Intellisense is not intelligent
No intellisense for columns unless table name is aliased.
Con UI design is very bad
Generic windows form
Con No session backup
You cannot recover your session after close or even worse crash.
Con Works under Linux only with Wine
It works quite well under Wine with Linux, but you must always take notice if the last version of HeidiSQL has been tested, for it may not run at all. There are some bugs in the Wine version that can be annoying and you have to kill the program and restart it. A native Linux version would be great.
Con No built-in debugger included
