# Latest **URL:** https://forum.graphviz.org/latest.md [Latest](https://forum.graphviz.org/latest.md) · [Categories](https://forum.graphviz.org/categories.md) --- ## [Render Graphviz graphs directly in your posts](https://forum.graphviz.org/t/render-graphviz-graphs-directly-in-your-posts/125)
**Author:** [@magjac](https://forum.graphviz.org/u/magjac)\ **Replies:** 23\ **Last updated:** [September 8, 2026, 3:19pm UTC](https://forum.graphviz.org/t/render-graphviz-graphs-directly-in-your-posts/125 "2026-09-08T15:19:18Z")
Render graphs directly in your posts with \[dot\]your DOT source here\[/dot\]. When you are posting something here at the forum and want to show a graph that is generated by some DOT source code; wouldn’t it be great if you… --- ## [New simplified installation procedure on Windows](https://forum.graphviz.org/t/new-simplified-installation-procedure-on-windows/224)
**Author:** [@magjac](https://forum.graphviz.org/u/magjac)\ **Replies:** 38\ **Last updated:** [January 2, 2022, 11:12am UTC](https://forum.graphviz.org/t/new-simplified-installation-procedure-on-windows/224 "2022-01-02T11:12:19Z")
Today, we are proud to announce that we have deployed a new and easier procedure for finding and installing Windows binaries and we plan to make it even easier going forward. Background None of the current maintainers o… --- ## [Welcome to the Graphviz forum](https://forum.graphviz.org/t/welcome-to-the-graphviz-forum/7)
**Author:** [@system](https://forum.graphviz.org/u/system)\ **Replies:** 0\ **Last updated:** [March 23, 2020, 3:25pm UTC](https://forum.graphviz.org/t/welcome-to-the-graphviz-forum/7 "2020-03-23T15:25:45Z")
This is a place for everyone to meet, discuss and share their work, and help one another. --- ## [Tukaaani xz\_util vulnerability](https://forum.graphviz.org/t/tukaaani-xz-util-vulnerability/3408)
**Author:** [@sneha.mangalvedhekar](https://forum.graphviz.org/u/sneha.mangalvedhekar)\ **Replies:** 22\ **Last updated:** [September 22, 2026, 6:31pm UTC](https://forum.graphviz.org/t/tukaaani-xz-util-vulnerability/3408 "2026-09-22T18:31:22Z")
Latest version has vulnerable version. --- ## [Bug report: Clustered subgraph leads to crash in dot](https://forum.graphviz.org/t/bug-report-clustered-subgraph-leads-to-crash-in-dot/3395)
**Author:** [@mmadsen\_cig](https://forum.graphviz.org/u/mmadsen_cig)\ **Replies:** 9\ **Last updated:** [September 16, 2026, 12:30pm UTC](https://forum.graphviz.org/t/bug-report-clustered-subgraph-leads-to-crash-in-dot/3395 "2026-09-16T12:30:12Z")
At my company, we use Graphviz to layout various graphs, including some data flow graphs to show how variables are being used across a number of scripts. We’ve noticed that in some scenarios, it will simply crash when i… --- ## [Source files (preferably SVG, if it exists) for Graphviz logo?](https://forum.graphviz.org/t/source-files-preferably-svg-if-it-exists-for-graphviz-logo/2175)
**Author:** [@FeRDNYC](https://forum.graphviz.org/u/FeRDNYC)\ **Replies:** 14\ **Last updated:** [September 13, 2026, 12:08am UTC](https://forum.graphviz.org/t/source-files-preferably-svg-if-it-exists-for-graphviz-logo/2175 "2026-09-13T00:08:19Z")
I’ve looked around the set of repos at graphviz · GitLab and so far come up empty-handed, so I’m wondering: Are source files available for the Graphviz app.png logo(s)? (I’ve found at least two versions, coming back to t… --- ## [Set background of edge labels](https://forum.graphviz.org/t/set-background-of-edge-labels/3372)
**Author:** [@hsambirchaaaaaaaaa](https://forum.graphviz.org/u/hsambirchaaaaaaaaa)\ **Replies:** 21\ **Last updated:** [September 10, 2026, 10:38am UTC](https://forum.graphviz.org/t/set-background-of-edge-labels/3372 "2026-09-10T10:38:49Z")
Is there a way to add a background to edge labels? I tried fillcolor but it only colors the arrow, and the edge labels kept having a transparent background. --- ## [Latex labels for Graphviz (work in progress)](https://forum.graphviz.org/t/latex-labels-for-graphviz-work-in-progress/3402)
**Author:** [@HermannSW](https://forum.graphviz.org/u/HermannSW)\ **Replies:** 2\ **Last updated:** [September 7, 2026, 1:31am UTC](https://forum.graphviz.org/t/latex-labels-for-graphviz-work-in-progress/3402 "2026-09-07T01:31:21Z")
A year ago in Linear Algebra 1 lecture (I study Mathematics in my 60s) I created a big structure diagram with Graphviz. Now I wanted to create a similar structure diagram for Elementary number theory lecture, but hesita… --- ## [Sfdp crash, regression in 15.1.1](https://forum.graphviz.org/t/sfdp-crash-regression-in-15-1-1/3392)
**Author:** [@gertburger](https://forum.graphviz.org/u/gertburger)\ **Replies:** 3\ **Last updated:** [September 5, 2026, 1:09am UTC](https://forum.graphviz.org/t/sfdp-crash-regression-in-15-1-1/3392 "2026-09-05T01:09:59Z")
Given the graph test.gv with content: digraph { n0 -\> n1; n0 -\> n2; n0 -\> n3; n0 -\> n4; n0 -\> n5; n0 -\> n6; n0 -\> n7; n0 -\> n8; n0 -\> n9; n0 -\> n10; n0 -\> n11; n0 -\> n12; n13 -\> n14; n13 -\> n7; n15 -\> n… --- ## [LaTex formulas in python API](https://forum.graphviz.org/t/latex-formulas-in-python-api/1021)
**Author:** [@sebas-a](https://forum.graphviz.org/u/sebas-a)\ **Replies:** 6\ **Last updated:** [September 3, 2026, 11:35pm UTC](https://forum.graphviz.org/t/latex-formulas-in-python-api/1021 "2026-09-03T23:35:21Z")
Dear Graphviz community, Is there a way to include latex formulas as labels in the Python API of Graphviz? I have looked at the examples: Examples — graphviz 0.20.1 documentation, but there is nothing similar to includ… --- ## [Need help with network diagram example](https://forum.graphviz.org/t/need-help-with-network-diagram-example/3396)
**Author:** [@Vasyl](https://forum.graphviz.org/u/Vasyl)\ **Replies:** 3\ **Last updated:** [August 30, 2026, 7:32pm UTC](https://forum.graphviz.org/t/need-help-with-network-diagram-example/3396 "2026-08-30T19:32:22Z")
Dear All, can somebody help me to reproduce the example from Gallery. I need namely circles with nodes on them. I mean this one: A Network Map | Graphviz I tried a lot of different parameters but cannot see that beaut… --- ## [Using graphviz API directly to render graphs](https://forum.graphviz.org/t/using-graphviz-api-directly-to-render-graphs/2713)
**Author:** [@hos-b](https://forum.graphviz.org/u/hos-b)\ **Replies:** 1\ **Last updated:** [August 18, 2026, 1:24am UTC](https://forum.graphviz.org/t/using-graphviz-api-directly-to-render-graphs/2713 "2026-08-18T01:24:24Z")
Hi. I’m trying to use the gvrender\_engine\_t API to get the layout information performed using the dot layout algorithm. I have followed the official guide to write my own rendering plugin. Unfortunately I only noticed t… --- ## [Dotmatrix (preview): Layout Engine for Monospaced Unicode Fonts](https://forum.graphviz.org/t/dotmatrix-preview-layout-engine-for-monospaced-unicode-fonts/3376)
**Author:** [@starbaser](https://forum.graphviz.org/u/starbaser)\ **Replies:** 8\ **Last updated:** [August 6, 2026, 6:26pm UTC](https://forum.graphviz.org/t/dotmatrix-preview-layout-engine-for-monospaced-unicode-fonts/3376 "2026-08-06T18:26:13Z")
dotmatrixis a graphviz layout engine for generating graphs from DOT files into text via monospaced unicode fonts. I’m proud to announce it here in it’s preview debut: today it finally crossed the rubicon on graphviz’s C … --- ## [dot-engine: a faithful pure-TypeScript port of Graphviz (no WASM) — plus markdown/SSG plugins and a VS Code extension](https://forum.graphviz.org/t/dot-engine-a-faithful-pure-typescript-port-of-graphviz-no-wasm-plus-markdown-ssg-plugins-and-a-vs-code-extension/3388)
**Author:** [@sseely](https://forum.graphviz.org/u/sseely)\ **Replies:** 1\ **Last updated:** [August 1, 2026, 11:43am UTC](https://forum.graphviz.org/t/dot-engine-a-faithful-pure-typescript-port-of-graphviz-no-wasm-plus-markdown-ssg-plugins-and-a-vs-code-extension/3388 "2026-08-01T11:43:45Z")
Hi all — I’d like to share a project some of you may find interesting (or alarming): a faithful port of Graphviz from the C source to pure TypeScript. Engine — @knowvah/dot-engine (npm: @knowvah/dot-engine, EPL-2.0 like… --- ## [Trying to replicate old flowchart](https://forum.graphviz.org/t/trying-to-replicate-old-flowchart/3377)
**Author:** [@gtoal](https://forum.graphviz.org/u/gtoal)\ **Replies:** 7\ **Last updated:** [July 18, 2026, 4:56am UTC](https://forum.graphviz.org/t/trying-to-replicate-old-flowchart/3377 "2026-07-18T04:56:22Z")
Below is a flowchart from an old document that I want to recreate as closely as possible. I’ve worked out how to do most of it (it took me some time to realise that the ordering of statements was significant!) but I’m h… --- ## [Overlapping nodes and cut off graph, even though overlap is set to false](https://forum.graphviz.org/t/overlapping-nodes-and-cut-off-graph-even-though-overlap-is-set-to-false/1286)
**Author:** [@Ooker](https://forum.graphviz.org/u/Ooker)\ **Replies:** 25\ **Last updated:** [July 14, 2026, 5:18pm UTC](https://forum.graphviz.org/t/overlapping-nodes-and-cut-off-graph-even-though-overlap-is-set-to-false/1286 "2026-07-14T17:18:34Z")
This code generates overlapping nodes and cut off graph, even though I have set overlap=false. Why is that? --- ## [Wrapping Graphviz into a No-Code, Keyboard-Driven Interface](https://forum.graphviz.org/t/wrapping-graphviz-into-a-no-code-keyboard-driven-interface/3365)
**Author:** [@Toki](https://forum.graphviz.org/u/Toki)\ **Replies:** 2\ **Last updated:** [June 9, 2026, 12:59pm UTC](https://forum.graphviz.org/t/wrapping-graphviz-into-a-no-code-keyboard-driven-interface/3365 "2026-06-09T12:59:35Z")
Hi Graphviz community, I wanted to share a desktop tool I have built and deployed, as it literally could not exist without Graphviz. For years, as a researcher, Graphviz has been my irreplaceable anchor for causal thin… --- ## [New Installer Package for macOS](https://forum.graphviz.org/t/new-installer-package-for-macos/1812)
**Author:** [@zosmac](https://forum.graphviz.org/u/zosmac)\ **Replies:** 22\ **Last updated:** [June 3, 2026, 11:38am UTC](https://forum.graphviz.org/t/new-installer-package-for-macos/1812 "2026-06-03T11:38:43Z")
I have coded a makefile and updated a few of the source and build files of Graphviz to build a macOS installer package. This package installs graphviz dot and plugins into /usr/local/graphviz, adds /usr/local/graphviz/bi… --- ## [Html labels with placeholders](https://forum.graphviz.org/t/html-labels-with-placeholders/3347)
**Author:** [@petitPeyre](https://forum.graphviz.org/u/petitPeyre)\ **Replies:** 6\ **Last updated:** [May 30, 2026, 3:29am UTC](https://forum.graphviz.org/t/html-labels-with-placeholders/3347 "2026-05-30T03:29:16Z")
I have many nodes with table html labels which differs only by a few words. is there a way to set the html as default node label with special notation that will be substitued by values at render time, in the same way th… --- ## [Does Graphviz Have a Theme Package Feature?](https://forum.graphviz.org/t/does-graphviz-have-a-theme-package-feature/3315)
**Author:** [@The\_book](https://forum.graphviz.org/u/The_book)\ **Replies:** 7\ **Last updated:** [May 30, 2026, 2:37am UTC](https://forum.graphviz.org/t/does-graphviz-have-a-theme-package-feature/3315 "2026-05-30T02:37:08Z")
A few days ago, I researched mermaid. Functionally, mermaid has more built-in types, but that’s not the main point. What I want to say is that I find the default flowchart theme of mermaid very comfortable to look at, wi… --- ## [gvInclude.gvpr - insert a Graphviz code file into another Graphviz file](https://forum.graphviz.org/t/gvinclude-gvpr-insert-a-graphviz-code-file-into-another-graphviz-file/3348)
**Author:** [@steveroush](https://forum.graphviz.org/u/steveroush)\ **Replies:** 0\ **Last updated:** [May 30, 2026, 2:24am UTC](https://forum.graphviz.org/t/gvinclude-gvpr-insert-a-graphviz-code-file-into-another-graphviz-file/3348 "2026-05-30T02:24:40Z")
gvInclude.gvpr provides the equivalent of the #include feature of the C pre-processor, without needing any non-Graphviz programs (it does use the Graphviz gvpr program) (see https://www.graphviz.org/pdf/gvpr.1.pdf) usag… --- ## [Edge label placement](https://forum.graphviz.org/t/edge-label-placement/3338)
**Author:** [@Yanncha](https://forum.graphviz.org/u/Yanncha)\ **Replies:** 6\ **Last updated:** [May 7, 2026, 7:14pm UTC](https://forum.graphviz.org/t/edge-label-placement/3338 "2026-05-07T19:14:58Z")
Hello (and greetings to the forum as it’s my first post), I started to tinker last week with Graphviz and I find the language quite clear (though the documentation is not always straightforward). In a graph I’d like to… --- ## [\#include "config.h" in .h files](https://forum.graphviz.org/t/include-config-h-in-h-files/3327)
**Author:** [@brianrmurphy](https://forum.graphviz.org/u/brianrmurphy)\ **Replies:** 2\ **Last updated:** [April 25, 2026, 5:49am UTC](https://forum.graphviz.org/t/include-config-h-in-h-files/3327 "2026-04-25T05:49:00Z")
I was writing a new C test to run from test\_c\_utils.py and I found that #include “config.h” is a problem for such tests, as we don’t know for sure where the config file is when the test is run. I see several solutions: … --- ## [Test cases in the codebase](https://forum.graphviz.org/t/test-cases-in-the-codebase/3301)
**Author:** [@steveroush](https://forum.graphviz.org/u/steveroush)\ **Replies:** 6\ **Last updated:** [April 17, 2026, 10:09pm UTC](https://forum.graphviz.org/t/test-cases-in-the-codebase/3301 "2026-04-17T22:09:32Z")
\[no guarantees that the following is 100% accurate, but it is pretty close\] Good news: There are 822 unique \*.dot and \*.gv files in the codebase There are 822 unique \*.dot and \*.gv files in the codebase There are 717 u… --- ## [How do I force GraphViz to place nodes in the order they're listed? (or: family tree problems pt. 2)](https://forum.graphviz.org/t/how-do-i-force-graphviz-to-place-nodes-in-the-order-theyre-listed-or-family-tree-problems-pt-2/3329)
**Author:** [@jwodder](https://forum.graphviz.org/u/jwodder)\ **Replies:** 1\ **Last updated:** [April 16, 2026, 6:13pm UTC](https://forum.graphviz.org/t/how-do-i-force-graphviz-to-place-nodes-in-the-order-theyre-listed-or-family-tree-problems-pt-2/3329 "2026-04-16T18:13:25Z")
In my previous thread, I worked out how to use GraphViz to produce a somewhat-nice-looking family tree showing a person, their sibling, their aunts & uncles, and their direct ancestors back through great-grandparents. I… --- ## [Problems positioning nodes in a family tree with DOT](https://forum.graphviz.org/t/problems-positioning-nodes-in-a-family-tree-with-dot/3328)
**Author:** [@jwodder](https://forum.graphviz.org/u/jwodder)\ **Replies:** 9\ **Last updated:** [April 15, 2026, 1:44am UTC](https://forum.graphviz.org/t/problems-positioning-nodes-in-a-family-tree-with-dot/3328 "2026-04-15T01:44:28Z")
I’m trying to use GraphViz to typeset a family tree, largely building off of this Python script and this StackOverflow thread. I can make a decent-looking graph going back through grandparents and including siblings, li… --- ## [Graphviz + Nix... Any interest?](https://forum.graphviz.org/t/graphviz-nix-any-interest/3326)
**Author:** [@caffeine\_storm](https://forum.graphviz.org/u/caffeine_storm)\ **Replies:** 1\ **Last updated:** [April 9, 2026, 11:58pm UTC](https://forum.graphviz.org/t/graphviz-nix-any-interest/3326 "2026-04-09T23:58:03Z")
Hi all, Recently, in orthogonal efforts, I’ve been trying to pick up Nix and seeing if I can hack on Graphviz (r.e. vt100 output format). On a lark, I decided to smush these efforts together :upside\_down\_face: . I’ve g… --- ## [Public API and headers again](https://forum.graphviz.org/t/public-api-and-headers-again/3324)
**Author:** [@brianrmurphy](https://forum.graphviz.org/u/brianrmurphy)\ **Replies:** 5\ **Last updated:** [April 2, 2026, 6:20am UTC](https://forum.graphviz.org/t/public-api-and-headers-again/3324 "2026-04-02T06:20:48Z")
I see this general issue has been discussed in the past, but I just stumbled across a new question: is there an existing internal include file where stuff from types.h should be moved if it’s not appropriate for public A… --- ## [Graphviz archaeology](https://forum.graphviz.org/t/graphviz-archaeology/3323)
**Author:** [@steveroush](https://forum.graphviz.org/u/steveroush)\ **Replies:** 1\ **Last updated:** [March 21, 2026, 12:09pm UTC](https://forum.graphviz.org/t/graphviz-archaeology/3323 "2026-03-21T12:09:37Z")
Here are some ancient Graphviz links: old github repo (emden) https://emden.github.io/ old github repo (ellison) GitHub - ellson/MOTHBALLED-graphviz: Moved to https://gitlab.com/graphviz/graphviz · GitHub Internet Arc… --- ## [Development scripts/tips location?](https://forum.graphviz.org/t/development-scripts-tips-location/3320)
**Author:** [@brianrmurphy](https://forum.graphviz.org/u/brianrmurphy)\ **Replies:** 11\ **Last updated:** [March 11, 2026, 7:36pm UTC](https://forum.graphviz.org/t/development-scripts-tips-location/3320 "2026-03-11T19:36:42Z")
I’ve been debugging Issue 1213 and friends. I’ve apparently fixed the immediate issue but have some funky intermediate output. I incrementally worked with Claude to whip up some instrumentation output (gated by DEBU… [Next page](https://forum.graphviz.org/latest.md?page=1)