Best Open Source Usability Software 2026

Usability Software

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Browse free open source Usability software and projects below. Use the toggles on the left to filter open source Usability software by OS, license, language, programming language, and project status.

Enterprise-grade ITSM, for every business
Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.

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Catch Bugs Before Your Customers Do
Real-time error alerts, performance insights, and anomaly detection across your full stack. Free 30-day trial.

Move from alert to fix before users notice. AppSignal monitors errors, performance bottlenecks, host health, and uptime—all from one dashboard. Instant notifications on deployments, anomaly triggers for memory spikes or error surges, and seamless log management. Works out of the box with Rails, Django, Express, Phoenix, Next.js, and dozens more. Starts at $23/month with no hidden fees.

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1

TortoiseSVN

An Apache SVN client, right where you need it most

TortoiseSVN is a Subversion (SVN) client, implemented as a windows shell extension. Which means it's available right where you need it: in the Windows file explorer. It's intuitive and easy to use, since it doesn't require the Subversion command line client to run. Simply the coolest Interface to (Sub)Version Control!

154 Reviews

Downloads: 357,087 This Week

Last Update: 2026-01-02
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2

UniversalIndentGUI

A cross platform GUI for several code formatter, beautifier and indenter like AStyle, GNU Indent, GreatCode, HTML Tidy, Uncrustify and many more. Main feature is a live preview to directly see how the selected formatting option affects the source code.

8 Reviews

Downloads: 32 This Week

Last Update: 2012-03-30
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3

Circonium

C# custom control for round gauge creating and tuning.

Demo shows the possibilities of managing custom control project https://circonium.sourceforge.io Control provides tools for creating circular scales with marking on segments and automatic recalculation of the input value into the rotation angle of the arrow. Control contains GDI graphics and does not use OpenGL, or other 3D libraries. How to generate settings for Circonium Control and how apply it on start you Winform Application using that control - look at next video: https://www.youtube.com/watch?v=ll-CIfFIoOQ In the video there was a case with a mistake SharpDevelop which made breakdown of thedesigner of the MainForm. I cured it.

Downloads: 0 This Week

Last Update: 2018-01-08
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4

Comfortable CMS

CMS on PHP5 and MySQL. Add data on you site easy! The forum explains how to join the developer group.

Downloads: 0 This Week

Last Update: 2015-08-15
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Stop Storing Third-Party Tokens in Your Database
Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.

Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.

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