Got nerfed? Here is the free version.
Pick your nerfed tool. We list the open-source replacement that does the same job for $0 (or close to it). Manually curated, no affiliate links, no recommendations driven by anything except actual fit.
Star counts are approximate, refreshed weekly via the GitHub API. List last human-reviewed 2026-05-09. Suggest an addition or correction: open a PR.
Default Midjourney replacement if you have a GPU. Largest community + extension library.
git clone, run webui-user.bat / webui.sh- Ollama ↗130k
Easiest way to run a local LLM. Pair with Open WebUI for full ChatGPT replacement.
Run Llama/Mistral/Gemma/DeepSeek locallyOllama-compatible API for any clientBrew/winget/curl installINSTALLbrew install ollama && ollama run llama3.3CAVEATNeeds 16GB+ RAM for usable models. GPU strongly recommended.Open repo → - Open WebUI ↗95k
The default ChatGPT-replacement self-host. Massive ecosystem.
ChatGPT-style web UI for any backend (Ollama, OpenAI-compatible)RAG with file uploadsFunction calling, web search pluginINSTALLdocker run -p 3000:8080 ghcr.io/open-webui/open-webui:mainCAVEATBest paired with Ollama running locally.Open repo → - ComfyUI ↗65k
When you want full control over the diffusion pipeline. Power-user choice.
Node-based image/video pipelineSDXL, Flux, video diffusion modelsReproducible workflows you can share as JSONINSTALLgit clone + Python depsCAVEATSteep learning curve vs A1111.Open repo → - AppFlowy AI ↗65k
Notion + Notion AI in one self-hostable package.
Open-source Notion alternativeAI features integratedSelf-host or desktop appOpen repo → - Open Interpreter ↗60k
ChatGPT's Code Interpreter, but local and against any model.
Code Interpreter for any LLM, locallyFile ops + shell + browser controlPython-first but multi-languageINSTALLpip install open-interpreterCAVEATAGPL — be careful if integrating into proprietary product.Open repo → - LobeChat ↗55k
Slickest UI of the open-source chat clones.
Polished chat UI with plugin storeMulti-provider (OpenAI/Anthropic/Gemini/local)Vision, voice, knowledge basesINSTALLVercel one-click deploy or docker composeCAVEATBest with API-key access; some features paywall on hosted version.Open repo → - Fooocus ↗42k
If you want Midjourney's simplicity without ComfyUI's complexity.
Midjourney-feel UX (one prompt, presets)Built-in style libraryMinimal config — just runINSTALLDownload zip, run run.bat / run.shCAVEATLess customizable than A1111/ComfyUI.Open repo → - OpenHands ↗38k
Open-source Devin. Best when you want autonomous multi-step coding agents you control.
Sandboxed agent that runs full dev tasksWeb UI + CLI + headless modesPlug any LLM backendINSTALLdocker run docker.all-hands.dev/all-hands-ai/openhands:0.30CAVEATDocker required. Heavier setup than CLI tools.Open repo → - Coqui TTS ↗38k
Production-grade TTS toolkit. Bigger than just one model.
Mature TTS toolkit (XTTS v2)Fine-tune on your own voice1100+ language support via modelsCAVEATCoqui Inc. shut down — community fork active.Open repo → - OpenHands (also covers v0/Bolt) ↗38k
Closest open-source v0/Bolt clone. Sandboxed agent that builds apps.
Sandbox runs full coding tasks end-to-endBrowser + terminal + code-edit primitivesPlug any LLMINSTALLDockerOpen repo → - ChatTTS ↗35k
Best free ElevenLabs replacement for English/Mandarin chat-style audio.
Conversational TTS — handles fillers, pauses, multi-speakerMandarin + EnglishReal-time on consumer GPUCAVEATAGPL.Open repo → - AnythingLLM ↗32k
When the use case is 'chat with my company docs' rather than general LLM.
Workspace-based RAG over your docsDesktop or self-host20+ vector DB integrationsINSTALLDesktop app or DockerOpen repo → - aider ↗28k
Best Cursor replacement for terminal-comfortable devs who want auditable git history of every edit.
CLI-first, terminal-nativeGit-aware: auto-commits, branches, diffsWorks with any LLM provider (BYO API key)Strong repo-map contextINSTALLpip install aider-chatCAVEATBYO API key (Anthropic/OpenAI/local). No GUI.Open repo → - Jan ↗28k
Easiest desktop ChatGPT replacement for non-technical users.
Desktop app — no Docker, no terminalBuilt-in model marketplaceLocal-first, optional cloudINSTALLDownload from jan.aiCAVEATAGPL. Mac/Win/Linux.Open repo → - LibreChat ↗25k
When you want ChatGPT's UX but as a self-hosted multi-user product.
ChatGPT clone with multi-provider supportPlugins (DALL-E, Wolfram)Auth + multi-userConversation forkingINSTALLDocker composeCAVEATHeavier setup than Open WebUI.Open repo → - Cline ↗24k
Direct Cursor/Claude-Code clone inside VSCode. Best for devs already living in VSCode.
VSCode extension, native UXPlan/Act mode toggleBuilt-in MCP supportPermission-based file opsINSTALLVSCode marketplace: 'Cline'CAVEATBYO API key. Permission prompts can feel noisy.Open repo → - Tabby ↗24k
When you need 100% on-prem code completion. No data leaves your machine.
Self-hosted, runs on your GPUOpenAPI-compatibleTeam collab featuresINSTALLDocker image or HomebrewCAVEATRequires GPU for decent latency. Setup is non-trivial.Open repo → - InvokeAI ↗24k
Cleanest UI in the SD ecosystem. Best for design-pipeline use.
Polished web UICanvas/inpainting workflowStudio-grade install experienceINSTALLInstaller .exe / .pkg / launcher scriptOpen repo → - Open-Sora ↗22k
When you want OpenAI Sora capability locally. Heavy GPU need.
Open-source video diffusion (Sora-style)Text-to-video and image-to-videoPublic model checkpointsCAVEATNeeds 24GB+ VRAM realistically.Open repo → - AudioCraft (MusicGen) ↗22k
Best free Suno/Udio alternative for music generation.
Meta's music + audio generation toolkitText-to-music via MusicGenAudioGen for sound effectsCAVEATOutput quality below Suno's; needs prompt engineering.Open repo → - Continue.dev ↗21k
Best when you want local LLMs (via Ollama) and care about privacy. Strong autocomplete.
VSCode + JetBrains supportLocal-model friendly (Ollama integration)Custom slash commandsTab autocomplete + chatINSTALLVSCode/JetBrains marketplace: 'Continue'CAVEATTab autocomplete needs a fast local model or hosted API.Open repo → - Perplexica ↗19k
Direct Perplexity replacement. Free if you BYO API key.
Open-source Perplexity cloneMultiple search modes (Academic, YouTube, Reddit)Self-host, BYO LLM + SearXNGINSTALLDocker compose with SearXNGOpen repo → - SearXNG ↗17k
Use under Perplexica/Morphic for the search backend, or just as a private Google.
Privacy-respecting meta-search engine70+ search backendsFoundation for AI search toolsINSTALLDockerOpen repo → - Bolt.diy ↗17k
Direct Bolt.new replacement. Free if you bring your own API key.
Open-source fork of Bolt.new (StackBlitz)WebContainers in browserBYO API key (any provider)INSTALLgit clone + npm installOpen repo → - Goose ↗14k
When you want a polished agent from a real engineering org. MCP-native.
Block (Square)'s on-machine AI agentExtension marketplace (MCP servers)Fast, focused on dev workflowsINSTALLbrew install block/goose/gooseCAVEATNewer than aider/Cline; ecosystem still growing.Open repo → - F5-TTS ↗14k
Voice cloning use case. MIT-licensed (rare for high-quality TTS).
Voice cloning from a 10-second sampleMulti-languageStrong prosodyOpen repo → - Roo Code ↗11k
Cline's multi-personality cousin. Pick when you want explicit Architect-vs-Coder separation.
Cline fork with extra modes (Architect, Ask, Debug)Multi-mode workflowsCustom mode authoringINSTALLVSCode marketplace: 'Roo Code'CAVEATSame BYO-API-key model as Cline.Open repo → - Morphic ↗8.5k
Lighter-weight Perplexica with prettier output.
Generative UI search engineStreaming results with rich cardsVercel-deployable in 1 clickCAVEATSmaller community.Open repo → - Codeium ↗
Closest free-tier replacement for Copilot. No usage caps on free.
Free tier with no token cap70+ language supportMulti-IDE (VSCode/JetBrains/Vim/Emacs)Self-host enterprise tierCAVEATClosed-source on the free tier. Enterprise plan exists for self-host.Open homepage → - Stable Video Diffusion ↗
Best image-to-video model with permissive-enough license.
Image-to-video model from StabilityRun via ComfyUI workflowFree for non-commercial; commercial license availableCAVEATRead the license — not pure open-source.Open homepage →