| evidence | ||
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| README.md | ||
Open Slopware
Free/Open Source Software tainted by LLM developers/developed by genAI boosters, along with alternatives.
The intention of this list is to raise awareness of this technology's usage in popular software, as well as give people informed alternatives that they can reach for when they want to make decisions for themselves. This is not a list created so you can go and give these projects trouble for their decision. If you want to file a complaint about it with them, we consider that acceptable but ask that it be done respectfully and constructively.
For more information on why we think this list matters, please see Why not LLMs?.
Contributing
To contribute to this list, file a pull request adding it to the appropriate category, along with any known alternatives. The pull request must include links to evidence of such (social media posts, screenshots, commit history, links to CLAUDE.md, etc). Title the pull request "Add <software-name>" or such.
Criteria
The criteria for being included in this repository are any of:
- One or more core/prominent developers openly use LLMs in any level of supportive capacity to develop this software specifically. Accepting drive-by or minor contributions that happen to use LLMs is NOT qualifying. This may change in the future.
- The software itself integrates genAI features of any kind, internally or externally.
Removal
Any project here may be removed as long as the following become true, even if prior LLM-authored code remains:
- The project establishes a "No genAI" policy, where the core developers commit to no longer using LLMs for developing that project in particular and no longer accepting obvious LLM-authored contributions, and state the policy prominently in their repo.
- Any genAI functionality of the project itself is removed in its entirety. "Kill switches" are insufficient.
Tainted Software
Browsers
| Name | Alternatives | Evidence | Notes |
|---|---|---|---|
| Firefox | LibreWolf, several other forks | Blog post collecting details |
Command-Line Shells
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
nushell |
elvish shell, fish shell |
Integrated MCP server, core developer sets Claude as a co-author | |
yash |
dash shell, but there are no other major shells fully targeting POSIX |
Assigns and auto-reviews MRs with LLMs |
Computer Graphics
Photography
| Name | Alternative(s) | Evidence |
|---|---|---|
| RapidRAW | From the README: "with the support from Google Gemini." Roadmap includes adding GenAI. | |
| RawTherapee | Stick to version 5.12 | Use Copilot for review PR7518, PR 7435, PR 7378 and code changes commit c4b0400 |
Terminal Emulators
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
| Warp | Advertised as an "agentic development environment." |
Developer Tools
| Name | Alternative(s) | Evidence |
|---|---|---|
cargo-nextest |
Just use cargo test |
CLAUDE.md and AGENTS.md in repository |
jujutsu |
continue using git itself |
A core dev occasionally uses Claude to generate local test cases., (Discord link) |
just |
Lists an MCP server in its User Manual. | |
oh-my-posh |
Starship | AGENTS.md file in main repository |
oh-my-bash |
Starship | All PRs are reviewed with "Qodo" Example PR |
ohmyzsh |
Starship | Added Claude and Grok as search engines |
| Taskfile | Uses Copilot for PRs |
Programming Languages
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
.NET |
See below | .NET Runtime PRs, .NET SDK PRs |
|
| Julia | Python (w/ appropriate scientific libraries) | AGENTS.md in main repository, PRs "written by Claude" |
Note on alternative languages
Suggestions for alternative programming languages are necessarily more complex than many other categories considered here, as that's one of the core technical choices to be made when starting a new software development project.
Depending on your needs and technical concerns, you may find any number of different alternative languages useful. For example, when considering alternatives to .NET, Java or Scala may be interesting candidates from the perspective of being similar VM-based frameworks, while Python or Rust may be interesting alternatives in other ways.
Editors
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
| Zed | Lapce, other popular editors like neovim, emacs, etc | They prominently advertise genAI features as a core part of their product. See their website. | There's a killswitch to disable genAI features entirely, but it's likely the code itself is still heavily LLM-authored. |
| VS Code | VS Codium* removes the AI features from VS Code | It's literally their main advertising tagline, and they publicly use LLMs in their public repository. Most AI "features" are enabled by default, and some cannot be disabled. | *VS Codium is still written with LLMs since Microsoft owns it |
Accessibility Tools
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
| espeak-ng | flite | Dev uses copilot for review and is setting up copilot instructions | espeak still exists, but is heavily outdated and very bad from a modern standpoint, so it cannot be considered as an alternative. flite users may also wish to install speech-dispatcher-flite. |
Microcontroller Tools and Libraries
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
| FastLED | .claude and .cursor folders in main repository |
Service Monitoring
| Name | Alternative(s) | Evidence |
|---|---|---|
| Uptime Kuma | Dev uses copilot for review |
Libraries
Rust
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
facet |
Use more specific deserialization libraries and avoid macros that slow things down anyway. serde itself is tainted by its Palantir-defending author. nanoserde could be suitable for certain use cases. |
Core developer openly uses LLMs for library dev | |
ratatui |
iocraft and cursive. console and its family of libraries may also be enough for some use cases. |
Core developer has stated their use of AI for rust code | |
yaxpeax |
Consider linking to binutils' libopcodes. |
Core developer learned something from Claude once |
CSS
| Name | Alternative(s) | Evidence | Notes |
|---|---|---|---|
tailwindcss |
twind |
Sponsorship page states explicitly that the founder uses AI to write code and even sells access to his "Cursor/Claude/AGENTS.md rules" |
Game Engines
| Name | Alternative(s) | Evidence |
|---|---|---|
| UPBGE 0.5 | UPBGE 0.36.1 seems to be slop-free | 0.5 release notes state the use of AI in plain language |
Services/Utilities
| Name | Alternative(s) | Evidence |
|---|---|---|
| Bluesky | Mastodon | CTO discusses using Claude in development |
| Calibre 8.16.2 | BookLore Clbre, a Calibre fork without AI Arcalibre, a Calibre hard-fork from before AI features |
Added "Discuss selected book(s) with AI" feature |
| Bitwarden | Include CLAUDE.md | |
| Calibre 8.16.2 | BookLore Clbre, a Calibre fork without AI Arcalibre, a Calibre hard-fork from before AI features |
Added "Discuss selected book(s) with AI" feature |
| Ghost | WriteFreely | Include configurations for Claude and cursor; images on website seem generated |
| KeepassXC | Use Copilot to generate PRs: Example 1, Example 2, Example 3 | |
| MinIO | Garage | Advertises AI as their primary focus on their website. |
| Nextcloud | ✨ Nextcloud Assistant; Nextcloud Desktop has AGENTS.md | |
| Wagtail CMS | WriteFreely | Include AGENTS.md; Wagtail AI |
| WordPress | WriteFreely | Include AGENTS.md; has Copilot PRs |
Operating Systems
| Name | Alternative(s) | Evidence |
|---|---|---|
| Linux Kernel | BSD? Honestly this one's tough | Maintainers are explicitly trying out the technology and considering LLM-based reviews |
Why not LLMs?
tktk. Could use some help writing this with concrete receipts on environmental, social, political, and economic/labor harms.