Download Tcl: ActiveTcl
The trusted Tcl distribution for Windows, Linux and Mac, pre-bundled with top Tcl/Tk modules – free for development use.
Why download Tcl from ActiveState?
Because with ActiveState, you can build a custom Tcl, tailored to your needs.
ActiveTcl is now offered through the ActiveState Platform. The Platform makes it possible to automate your build engineering cycle, dependency management and check for threats and license compliance. Besides gaining access to packages not featured in our ActiveTcl distribution, you also get to:
- Download the ActiveTcl version you need and get notified of updates
- Share your Tcl runtime environment with your team
- Coming Soon: Customize Tcl with only the packages you need
97% of Fortune 1000 Companies Rely On ActiveState
ActiveState’s enterprise offering includes extensive customization, premium support, and regularly scheduled builds, licensed for production use and redistribution.
Reduce Security Risks
Ensure security with the latest secure versions of Tcl modules and timely updates for critical issues.
Indemnification and License Compliance
Comply with your organization’s open source policies against GPL and GNU licensing, and reduce risk with legal indemnification.
Commercial Support & Maintenance
Keep your IP out of public forums and get faster, more reliable help with guaranteed response times and Service-Level Agreements
Enforce Code Consistency
Maintain consistency from desktop to production – Windows, macOS, Linux and big iron (AIX, Solaris).
Avoid Lock-In with Open Source
100% compatible with open source Tcl so you can recruit skilled staff, ramp up faster and avoid vendor lock-in.
Accelerate Time to Market
Spend less time setting things up and more time getting things done, with the top Tcl modules precompiled and ready to go.
Tcl becomes less secure and more costly to maintain over time. See how ActiveState can help.
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