Software · Utilities & files

GTKWave

Electronic waveform viewer for viewing simulation results.

Completely free
Linux
Open source

Ad-supported exit link (Clictune): an intermediate page may show for a few seconds before the official website. Direct link to the website, no intermediate page

Report an error

Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
License: GPL-2.0+ — Open source (copyleft)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Official plan pages (pricing, licence, terms), Flathub
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: Tony Bybell
Latest version: 3.3.127 (31 March 2026)
Latest activity: 29 May 2026
Source code: github.com/gtkwave/gtkwave

At a glance

GTKWave is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

GTKWave is a fully featured GTK+ based waveform viewer which reads FST and GHW files as well as standard Verilog VCD/EVCD files and allows their viewing. The viewer supports both post-mortem viewing of VCD files and interactive viewing of VCD data. Tcl scripting and callback capability allow for remote control by other applications.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 10 November 2026
Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 8 November 2026
Description from Flathub — AppStream (Flathub)

How listings are built →

Do you develop GTKWave?

Correct this listing with the report form, or cite it with this optional badge (it shows the verified free status and changes nothing in the ranking):

<a href="https://licitpro.fr/en/resource/gtkwave"><img src="https://licitpro.fr/badge/gtkwave.svg?l=en" alt="Listed on LicitPro" height="20"></a>

Developers and publishers →

In the same category

Bazaar

Software · Open source

Discover and install apps.

Completely freeLinux

Prism Launcher

Software · Open source

Custom Minecraft Launcher to easily manage multiple Minecraft installations at once.

Completely freeWinMacLinux

Gear Lever

Software · Open source

Manage AppImages.

Completely freeLinux

LocalSend

Software · Open source

Share files to nearby devices.

Completely freeWinMacLinuxAndroidiOS

Mission Center

Software · Open source

Monitor system resource usage.

Completely freeLinux

Protontricks

Software · Open source

Apps and fixes for Proton games.

Completely freeLinux